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学者姓名:方圣琼

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High efficiency heterogeneous fenton-like catalyst biochar modified CuFeO2 for the degradation of ciprofloxacin: Catalytic performance and mechanism SCIE
期刊论文 | 2025 , 13 (2) | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
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Abstract :

Ciprofloxacin (CIP) is widely used in the aquaculture and medical fields. The discharge of unused residual CIP into the environment poses a threat to humans and the ecology. In this work, we successfully synthesized a composite catalyst (called PSBC-0.1) using a peanut shell to degrade the refractory antibiotic ciprofloxacin (CIP) in water. In addition, compared with that of biochar and CuFeO2, the specific surface area of the surface area of the PSBC-0.1 catalyst was greatly greater, which increased the contact area between the pollutant and the catalyst. The combined effect of iron and copper increases the rate of electron transport, while the abundance of functional groups on the biochar surface helps anchor the catalyst onto the substrate. As a result, the degradation efficiency of CIP was 95 % under optimal conditions (1.2 g & sdot;L-1 of PSBC-0.1, H2O2 dosage of 12 mM and pH = 7.0); moreover, it effectively degraded carbamazepine (CBZ), diclofenac (DF), sulfafurazole (SIZ), and tetracycline (TC). The intermediates and final products of the degradation process was investigated using liquid chromatography-mass spectrometry (LC-MS). Toxicity analysis revealed that the intermediates and final products of the degradation process are environmentally friendly. The active sites of the CIP were also analyzed using density functional theory (DFT) calculations. The catalyst not only prevented a decrease in degradation efficiency due to metal compound agglomeration but also enhanced the cyclic synergy of Fe3+/Fe2+ and Cu2+/ Cu+.

Keyword :

Ciprofloxacin Ciprofloxacin CuFeO2 CuFeO2 Heterogeneous Fenton process Heterogeneous Fenton process Peanut shell biochar Peanut shell biochar

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GB/T 7714 Ge, Yao , Wang, Dong , Zheng, Zhi et al. High efficiency heterogeneous fenton-like catalyst biochar modified CuFeO2 for the degradation of ciprofloxacin: Catalytic performance and mechanism [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2025 , 13 (2) .
MLA Ge, Yao et al. "High efficiency heterogeneous fenton-like catalyst biochar modified CuFeO2 for the degradation of ciprofloxacin: Catalytic performance and mechanism" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 13 . 2 (2025) .
APA Ge, Yao , Wang, Dong , Zheng, Zhi , Huang, Lili , Wang, Junjie , Fang, Shengqiong . High efficiency heterogeneous fenton-like catalyst biochar modified CuFeO2 for the degradation of ciprofloxacin: Catalytic performance and mechanism . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2025 , 13 (2) .
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High efficiency heterogeneous fenton-like catalyst biochar modified CuFeO2 for the degradation of ciprofloxacin: Catalytic performance and mechanism Scopus
期刊论文 | 2025 , 13 (2) | Journal of Environmental Chemical Engineering
High efficiency heterogeneous fenton-like catalyst biochar modified CuFeO2 for the degradation of ciprofloxacin: Catalytic performance and mechanism EI
期刊论文 | 2025 , 13 (2) | Journal of Environmental Chemical Engineering
Unraveling the role of V modified CoO in a wide pH range Fenton-like process SCIE
期刊论文 | 2025 , 375 | JOURNAL OF ENVIRONMENTAL MANAGEMENT
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Abstract :

Building an effective heterogeneous Fenton catalyst over a broad pH range without the requirement for external energy input is still challenging. Herein, a vanadium-cobalt bimetallic catalyst (Co-V-8) are employed to extended a pH range of 3-9 by activating H2O2 as a Fenton-like catalyst. The Co-based Co-V-8 catalysts demonstrate high diclofenac sodium deterioration efficiency (98.2%) under both acidic and alkaline environments, and the kinetic reaction rate within 15 min could reach 0.288 min-1. Crucially, density functional theory (DFT) calculations imply that the Co-V-8 owned a narrower band gap and a higher Fermi level, which beneficial for quickening the electron transfer process. Results showed that the catalyst modified by V could introduce abundant oxygen vacancies, promote the decomposition of H2O2 via V3+ and V4+, and enhance the conversion of Co3+ and Co2+, accelerating the formation of center dot OH, center dot OOH, center dot O2 and electron transfer process. Additionally, Co-V-8 promoted the utilization rate of H2O2 exceeding 90% and exhibited exceptional catalytic ability in cleaning actual pharmaceutical wastewater. This research offers a sustainable separable and purification technology for wastewater remediation.

Keyword :

DFT DFT Electron transfer process Electron transfer process Heterogeneous Fenton Heterogeneous Fenton Oxygen vacancy Oxygen vacancy V modification V modification

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GB/T 7714 Huang, Xiaoyi , Wu, Qiangqiang , Tang, Jingwen et al. Unraveling the role of V modified CoO in a wide pH range Fenton-like process [J]. | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2025 , 375 .
MLA Huang, Xiaoyi et al. "Unraveling the role of V modified CoO in a wide pH range Fenton-like process" . | JOURNAL OF ENVIRONMENTAL MANAGEMENT 375 (2025) .
APA Huang, Xiaoyi , Wu, Qiangqiang , Tang, Jingwen , Ning, Rongsheng , Yuan, Jiang , Fang, Shengqiong et al. Unraveling the role of V modified CoO in a wide pH range Fenton-like process . | JOURNAL OF ENVIRONMENTAL MANAGEMENT , 2025 , 375 .
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Unraveling the role of V modified CoO in a wide pH range Fenton-like process Scopus
期刊论文 | 2025 , 375 | Journal of Environmental Management
Unraveling the role of V modified CoO in a wide pH range Fenton-like process EI
期刊论文 | 2025 , 375 | Journal of Environmental Management
Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation Scopus
期刊论文 | 2024 , 356 | Environmental Pollution
Abstract&Keyword Cite

Abstract :

For the efficient degradation of organic pollutants with the goal of reducing the water environment pollution, we employed an alkaline hydrothermal treatment on primeval g-C3N4 to synthesize a hydroxyl-grafted g-C3N4 (CN-0.5) material, from which we engineered a novel Fenton-like catalyst, known as Cu–CN-0.5. The introduction of numerous hydroxyl functional groups allowed the CN-0.5 substrate to stably fix active copper oxide particles through surface complexation, resulting in a low Cu leaching rate during a Cu–CN-0.5 Fenton-like process. A sequence of characterization techniques and theoretical calculations uncovered that interfacial complexation induced charge redistribution on the Cu–CN-0.5 surface. Specifically, some of the π electrons in the tris-s-triazine units were transferred to the copper oxide particles along the newly formed chemical bonds (C(π)-O-Cu), forming a π-deficient area on the tris-s-triazine plane near the complexation site. In a typical Cu–CN-0.5 Fenton-like process, a stable π-π interaction was established due to the favorable positive-negative match of electrostatic potential between the aromatic pollutants and π-deficient areas, leading to a significant improvement in Cu–CN-0.5's adsorption capacity for aromatic pollutants. Furthermore, pollutants also delivered electrons to the Cu–CN-0.5 Fenton-like system via a “through-space” approach, which suppressed the futile oxidation of H2O2 in reducing the high-valent Cu2+ and significantly improved the generation efficiency of •OH with high oxidative capacity. As expected, Cu–CN-0.5 not only exhibited an efficient Fenton degradation for several typical aromatic organic pollutants, but also demonstrated both a low metal leaching rate (0.12 mg/L) and a H2O2 utilization rate exceeding 80%. The distinctive Fenton degradation mechanism substantiated the potential of the as-prepared material for effective wastewater treatment applications. © 2024

Keyword :

Alkaline hydrothermal treatment Alkaline hydrothermal treatment Fenton Fenton g-C3N4 g-C3N4 Interfacial regulation Interfacial regulation

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GB/T 7714 Zhou, B. , Liu, Q. , Zheng, C. et al. Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation [J]. | Environmental Pollution , 2024 , 356 .
MLA Zhou, B. et al. "Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation" . | Environmental Pollution 356 (2024) .
APA Zhou, B. , Liu, Q. , Zheng, C. , Ge, Y. , Huang, L. , Fu, H. et al. Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation . | Environmental Pollution , 2024 , 356 .
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Unraveling the role of P doped Co@C in diclofenac degradation SCIE
期刊论文 | 2024 , 353 | SEPARATION AND PURIFICATION TECHNOLOGY
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Abstract :

In order to overcome the low catalytic efficiency of conventional single cobalt-based catalysts, a cobalt-based peroxymonosulfate (PMS) heterogeneous catalyst, named P-Co@C, was synthesized by introducing phosphorus. The degradation rate of diclofenac (DCF) was increased by 5-fold from 0.076 min-1 (Co@C) to 0.426 min-1 (P-Co@C). The enhanced catalytic behavior was ascribed to the increased specific area, promotional hydrophilicity, reduced resistance to electron transfer and improved electron donor of reductive phosphorus. Density functional theory (DFT) calculations suggest that the doped P further facilitates the adsorbability and charge transfer intensity between catalyst and PMS, which benefits the generation of hydroxyl radical, sulfate radical and singlet oxygen. Furthermore, toxicity assessment of the intermediates revealed that the P-Co@C/ PMS/DCF system was a diminishing toxicity process, revealing the practicability and eco-friendly of P-Co@C in PMS-based oxidation process. This work provides a new strategy for exploring the cation and anion co-activation of the PMS heterogeneous catalytic systems.

Keyword :

DFT DFT Diclofenac Diclofenac Electron transfer Electron transfer P-Co@C P-Co@C Peroxymonosulfate Peroxymonosulfate

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GB/T 7714 Huang, Xiaoyi , Fang, Shengqiong , Yu, Shuili et al. Unraveling the role of P doped Co@C in diclofenac degradation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 353 .
MLA Huang, Xiaoyi et al. "Unraveling the role of P doped Co@C in diclofenac degradation" . | SEPARATION AND PURIFICATION TECHNOLOGY 353 (2024) .
APA Huang, Xiaoyi , Fang, Shengqiong , Yu, Shuili , Yang, Junwei , You, Qinglun . Unraveling the role of P doped Co@C in diclofenac degradation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 353 .
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Unraveling the role of P doped Co@C in diclofenac degradation Scopus
期刊论文 | 2025 , 353 | Separation and Purification Technology
Unraveling the role of P doped Co@C in diclofenac degradation EI
期刊论文 | 2025 , 353 | Separation and Purification Technology
Mussel-inspired superhydrophilic and antibacterial membranes for effective gravity-driven separation of oil-in-water emulsions SCIE
期刊论文 | 2024 , 341 | SEPARATION AND PURIFICATION TECHNOLOGY
WoS CC Cited Count: 4
Abstract&Keyword Cite Version(2)

Abstract :

Substantial discharge of industrial oily wastewater calls for an efficient and sustainable treatment for resource recovery. Superwetting membranes offer a feasible approach to fractionate oil species and water from oily wastewater for addressing this technical challenge. In this study, we proposed a useful strategy for constructing a superhydrophilic membrane with superior antibacterial properties through rapid co-deposition of dopamine and 3-aminopropyltriethoxysilane (APTS) initiated by ammonium persulfate on the Cu nanoparticles-loaded porous PVDF substrate. The resultant superhydrophilic membrane yielded an underwater oil contact angle of 163.5(degrees), enabling a fast and robust gravity-driven filtration for various oil-in-water emulsions with a separation efficiency of >99.9 %. Additionally, incorporating of Cu nanoparticles and polydopamine endowed the superhydrophilic membrane with superior antibacterial activity (100 % inhibition efficiency against Escherichia coli), and thereby remarkably enhancing the anti-biofouling performance. This study provides a viable approach to design highperformance membranes for separation of oil-in-water emulsions, with promising applications in the industrial and environmental sectors.

Keyword :

Antibacteria Antibacteria Cu nanoparticles Cu nanoparticles Mussel-inspired polydopamine coating Mussel-inspired polydopamine coating Oil -in -water emulsions Oil -in -water emulsions Superhydrophilic membrane Superhydrophilic membrane

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GB/T 7714 Lin, Yingying , Yu, Fan , Yu, Zijian et al. Mussel-inspired superhydrophilic and antibacterial membranes for effective gravity-driven separation of oil-in-water emulsions [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 341 .
MLA Lin, Yingying et al. "Mussel-inspired superhydrophilic and antibacterial membranes for effective gravity-driven separation of oil-in-water emulsions" . | SEPARATION AND PURIFICATION TECHNOLOGY 341 (2024) .
APA Lin, Yingying , Yu, Fan , Yu, Zijian , Lin, Xiaoyan , Lin, Fang , Liu, Riri et al. Mussel-inspired superhydrophilic and antibacterial membranes for effective gravity-driven separation of oil-in-water emulsions . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 341 .
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Mussel-inspired superhydrophilic and antibacterial membranes for effective gravity-driven separation of oil-in-water emulsions EI
期刊论文 | 2024 , 341 | Separation and Purification Technology
Mussel-inspired superhydrophilic and antibacterial membranes for effective gravity-driven separation of oil-in-water emulsions Scopus
期刊论文 | 2024 , 341 | Separation and Purification Technology
The CoO-doped carbon nanotubes enhance electronic performance and effectively activate persulfate for the degradation of sulfafurazole SCIE
期刊论文 | 2024 , 251 | ENVIRONMENTAL RESEARCH
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Abstract :

In recent studies, carbon nanotube (CNTs) materials and their composites have demonstrated remarkable catalytic activity in the activation of persulfate (PS), facilitating the efficient degradation of organic pollutants. In this study, a novel Co loaded carbon nanotubes (CoO@CNT) catalyst was prepared to promote PDS activation for the degradation of sulfafurazole (SIZ). Experimental results, the CNT as a carrier effectively reduces the leaching of cobalt ions and improves the electron transport capacity ,whereas the introduced Co effectively activates the PDS, promoting the generation of highly reactive radicals to degrade SIZ. Under optimized conditions (a catalyst dose of 0.2 g/L, a PDS dose of 1 g/L and an initial pH = 9.0), the obtained CoO@CNT demonstrated favorable Fenton-like performance, reaching a degradation efficiency of 95.55% within 30 min. Furthermore, density functional theory (DFT) calculations demonstrate that the introduction of cobalt (Co) accelerates electron transfer, promoting the decomposition of PDS while facilitating the Co 2 + /Co 3 + redox cycling. We further employed the environmental chemistry and risk assessment system (ECOSAR) to evaluate the ecological toxicity of intermediate products, revealing a significant reduction in ecological toxicity associated with this degradation process, thereby confirming its environmental harmlessness. Through batch experiments and studies, we gained a comprehensive understanding of the mechanism and influencing factors of CoO@CNT in the role of SIZ degradation, and provided robust support for evaluating the ecological toxicity of degradation products. This study provides a significant strategy for the development of efficient catalysts incorporating Co for the environmentally friendly degradation of organic pollutants.

Keyword :

CoO CoO DFT DFT Ecotoxicity Ecotoxicity Persulfate activation Persulfate activation Sulfisoxazole Sulfisoxazole

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GB/T 7714 Liu, Qingsong , Zhou, Bin , Zheng, Caihong et al. The CoO-doped carbon nanotubes enhance electronic performance and effectively activate persulfate for the degradation of sulfafurazole [J]. | ENVIRONMENTAL RESEARCH , 2024 , 251 .
MLA Liu, Qingsong et al. "The CoO-doped carbon nanotubes enhance electronic performance and effectively activate persulfate for the degradation of sulfafurazole" . | ENVIRONMENTAL RESEARCH 251 (2024) .
APA Liu, Qingsong , Zhou, Bin , Zheng, Caihong , Wang, Dong , Ge, Yao , Fang, Shengqiong . The CoO-doped carbon nanotubes enhance electronic performance and effectively activate persulfate for the degradation of sulfafurazole . | ENVIRONMENTAL RESEARCH , 2024 , 251 .
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The CoO-doped carbon nanotubes enhance electronic performance and effectively activate persulfate for the degradation of sulfafurazole Scopus
期刊论文 | 2024 , 251 | Environmental Research
The CoO-doped carbon nanotubes enhance electronic performance and effectively activate persulfate for the degradation of sulfafurazole EI
期刊论文 | 2024 , 251 | Environmental Research
Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation SCIE
期刊论文 | 2024 , 356 | ENVIRONMENTAL POLLUTION
Abstract&Keyword Cite Version(2)

Abstract :

For the efficient degradation of organic pollutants with the goal of reducing the water environment pollution, we employed an alkaline hydrothermal treatment on primeval g-C 3 N 4 to synthesize a hydroxyl -grafted g-C 3 N 4 (CN0.5) material, from which we engineered a novel Fenton -like catalyst, known as Cu-CN-0.5. The introduction of numerous hydroxyl functional groups allowed the CN-0.5 substrate to stably fix active copper oxide particles through surface complexation, resulting in a low Cu leaching rate during a Cu-CN-0.5 Fenton -like process. A sequence of characterization techniques and theoretical calculations uncovered that interfacial complexation induced charge redistribution on the Cu-CN-0.5 surface. Specifically, some of the 7C electrons in the tris-s-triazine units were transferred to the copper oxide particles along the newly formed chemical bonds (C (7C) -O-Cu), forming a 7C -deficient area on the tris-s-triazine plane near the complexation site. In a typical Cu-CN-0.5 Fenton -like process, a stable 7C -7C interaction was established due to the favorable positive -negative match of electrostatic potential between the aromatic pollutants and 7C -deficient areas, leading to a significant improvement in Cu-CN0.5's adsorption capacity for aromatic pollutants. Furthermore, pollutants also delivered electrons to the Cu-CN0.5 Fenton -like system via a "through -space" approach, which suppressed the futile oxidation of H 2 O 2 in reducing the high-valent Cu 2 + and significantly improved the generation efficiency of center dot OH with high oxidative capacity. As expected, Cu-CN-0.5 not only exhibited an efficient Fenton degradation for several typical aromatic organic pollutants, but also demonstrated both a low metal leaching rate (0.12 mg/L) and a H 2 O 2 utilization rate exceeding 80%. The distinctive Fenton degradation mechanism substantiated the potential of the as -prepared material for effective wastewater treatment applications.

Keyword :

Alkaline hydrothermal treatment Alkaline hydrothermal treatment Fenton Fenton Interfacial regulation Interfacial regulation

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GB/T 7714 Zhou, Bin , Liu, Qingsong , Zheng, Caihong et al. Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation [J]. | ENVIRONMENTAL POLLUTION , 2024 , 356 .
MLA Zhou, Bin et al. "Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation" . | ENVIRONMENTAL POLLUTION 356 (2024) .
APA Zhou, Bin , Liu, Qingsong , Zheng, Caihong , Ge, Yao , Huang, Lili , Fu, Haoyang et al. Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation . | ENVIRONMENTAL POLLUTION , 2024 , 356 .
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Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation Scopus
期刊论文 | 2024 , 356 | Environmental Pollution
Enhanced Fenton-like catalysis via interfacial regulation of g-C3N4 for efficient aromatic organic pollutant degradation EI
期刊论文 | 2024 , 356 | Environmental Pollution
CoFe2O4-catalytic ceramic membrane for efficient carbamazepine removal via peroxymonosulfate activation SCIE
期刊论文 | 2024 , 357 | SEPARATION AND PURIFICATION TECHNOLOGY
Abstract&Keyword Cite Version(2)

Abstract :

Poor water removal of low-molecular-weight anthropogenic contaminants is always a key problem in lowpressure membrane filtration process. In this work, we successfully designed and fabricated a novel cobaltbased bimetallic catalytic ceramic membrane (CoFe2O4@CM-2) with peroxymonosulfate (PMS) activation and membrane filtration dual functionality, employing a facile impregnation-filtration-calcination method. The resulting CoFe2O4@CM-2/PMS filtration system was specifically tailored for the removal of carbamazepine (CBZ). Our results demonstrate that the CoFe2O4@CM-2/PMS system achieved efficient removal of CBZ from contaminated waters. Under optimal conditions (PMS dosage of 0.5 mM and an operating flux of 40 L center dot m- 2 center dot h- 1), the CoFe2O4@CM-2/PMS system exhibited remarkable CBZ removal efficiency, reaching up to 96.5 %. This efficiency was 32.2 and 19.3 times higher than that achieved by ceramic membrane filtration alone and PMS treatment alone, respectively. Additionally, the CoFe2O4@CM-2/PMS system facilitated 37.0 % mineralization of CBZ and up to 87 % utilization of PMS in the permeate. Furthermore, the CoFe2O4@CM-2/PMS system demonstrated robust performance, removing over 91 % of CBZ across a pH range of 3-9 and maintaining stability stability in the presence of humic acid (HA) interference. Its exceptional anti-fouling ability effectively mitigates membrane flux loss compared to single membrane filtration process. Quenching test, electron paramagnetic resonance (EPR), and X-ray photoelectron spectroscopy (XPS) analyses revealed that 1O2, SO-4 center dot and center dot OH were the primary active substances in the system, while the redox cycle of Co2+/Co3+ played a crucial role in PMS activation. Moreover, the presence of iron (Fe) in the CoFe2O4@CM-2 expedited the Co2+/Co3+ cycle and enhanced PMS activation. This study introduces an innovative approach for fabricating ceramic membranes with catalytic degradation capabilities for organic pollutants and suggests promising avenues for integrating separation and advanced oxidation processes (AOPs) in future applications.

Keyword :

Carbamazepine Carbamazepine Catalytic ultrafiltration ceramic membrane Catalytic ultrafiltration ceramic membrane Cobalt-based catalyst Cobalt-based catalyst Peroxymonosulfate Peroxymonosulfate

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GB/T 7714 Ge, Yao , Zhong, Xincheng , Wang, Kai et al. CoFe2O4-catalytic ceramic membrane for efficient carbamazepine removal via peroxymonosulfate activation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 357 .
MLA Ge, Yao et al. "CoFe2O4-catalytic ceramic membrane for efficient carbamazepine removal via peroxymonosulfate activation" . | SEPARATION AND PURIFICATION TECHNOLOGY 357 (2024) .
APA Ge, Yao , Zhong, Xincheng , Wang, Kai , Huang, Lili , Zheng, Zhi , Wu, Chenzhi et al. CoFe2O4-catalytic ceramic membrane for efficient carbamazepine removal via peroxymonosulfate activation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 357 .
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CoFe2O4-catalytic ceramic membrane for efficient carbamazepine removal via peroxymonosulfate activation Scopus
期刊论文 | 2025 , 357 | Separation and Purification Technology
CoFe2O4-catalytic ceramic membrane for efficient carbamazepine removal via peroxymonosulfate activation EI
期刊论文 | 2025 , 357 | Separation and Purification Technology
Facile fabrication of multifunctional superhydrophilic composite membranes for efficient oil-in-water emulsion separation SCIE
期刊论文 | 2024 , 356 | SEPARATION AND PURIFICATION TECHNOLOGY
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Abstract :

Numerous superwetting separation membranes have been designed for the management of oily wastewater due to their highly efficient oil/water separation efficiency. However, the long-term stability of these developed membranes is still restricted by membrane fouling. In this study, we synthesized multifunctional superhydrophilic membranes with superior anti-adhesive and anti-biofouling properties through simple co-deposition of dopamine, polyethyleneimine and CoFe2O4 (CFO) photocatalyst on the porous PVDF substrates for sustainable management of oil-in-water emulsion. The resultant optimal composite membranes showed the superhydropilicity with an underwater oil contact angle of 162.4 degrees and achieved ca. 99.51 % oil/water separation efficiency with a maximum permeability of 232.2 Lm(-2)h(-1) in the treatment of oil-in-water emulsions driven by gravity. Moreover, the outstanding antibacterial performance of composite membrane was demonstrated by a nearly 100 % antibacterial rate during the exposure in 120-min visible light irradiation. Based on the synergistic effect of superhydrophilicity and photocatalysis, the fabricated composite membranes experienced a stable gravity-driven oil/water separation (oil rejection: >99.46 %) even after a 50-cycle filtration. Such an impressive filtration performance of the polydopamine/PEI/CFO composite membranes highlights their promising potential for sustainable and efficient treatment of oily wastewater.

Keyword :

CoFe2 O(4 )nanoparticles CoFe2 O(4 )nanoparticles Dopamine Dopamine Fouling Fouling Oil/Water separation Oil/Water separation Photocatalysis Photocatalysis Superhydrophilicity Superhydrophilicity

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GB/T 7714 Yu, Fan , Liu, Riri , Chen, Lianxin et al. Facile fabrication of multifunctional superhydrophilic composite membranes for efficient oil-in-water emulsion separation [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 356 .
MLA Yu, Fan et al. "Facile fabrication of multifunctional superhydrophilic composite membranes for efficient oil-in-water emulsion separation" . | SEPARATION AND PURIFICATION TECHNOLOGY 356 (2024) .
APA Yu, Fan , Liu, Riri , Chen, Lianxin , Yuan, Weishuang , Chen, Qin , Fang, Shengqiong et al. Facile fabrication of multifunctional superhydrophilic composite membranes for efficient oil-in-water emulsion separation . | SEPARATION AND PURIFICATION TECHNOLOGY , 2024 , 356 .
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Facile fabrication of multifunctional superhydrophilic composite membranes for efficient oil-in-water emulsion separation Scopus
期刊论文 | 2025 , 356 | Separation and Purification Technology
Facile fabrication of multifunctional superhydrophilic composite membranes for efficient oil-in-water emulsion separation EI
期刊论文 | 2025 , 356 | Separation and Purification Technology
Effective Membrane Distillation of Landfill Leachate Concentrate Using a Superhydrophobic SiO2/PVDF Membrane for Resource Recovery ESCI
期刊论文 | 2024 , 4 (4) , 1711-1719 | ACS ES&T WATER
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Abstract :

The formidable challenge of membrane fouling and wetting, spurred by the elevated concentration of pollutants in the landfill leachate concentrate during membrane distillation, necessitates substantial costs on membrane cleaning for retaining high separation efficiency. Herein, a durable superhydrophobic poly(vinylidene fluoride) (PVDF) membrane constructed by spray-coating of fluorinated SiO2 nanoparticles was proposed to treat landfill leachate concentrate via membrane distillation. The influence of operational parameters, including transmembrane temperature difference, feed flow rate, and feed salinity, on the membrane distillation performance was explored. Specifically, the increased transmembrane temperature difference and feed flow rate had a strongly positive dependence on the permeation flux during membrane distillation. The superhydrophobic PVDF membrane showed impressive antiwetting and antifouling properties, as indicated by consistently stable superhydrophobicity, obtaining an extremely high rejection of salts and humic substances (>99.99%) over an 8 h membrane distillation for treating landfill leachate concentrate. Furthermore, the tested superhydrophobic PVDF membrane yielded a complete solute removal, resulting in high-quality freshwater production with a 90.13% pure water recovery from landfill leachate concentrate during a 50 h membrane distillation-based concentration procedure with a concentration factor of 10.13. These results manifested the superhydrophobic PVDF membrane as a promising avenue for pure water production from complex waste streams via membrane distillation.

Keyword :

concentration concentration desalination and purification desalination and purification direct contact membranedistillation direct contact membranedistillation landfill leachate concentrate landfill leachate concentrate superhydrophobic PVDF membrane superhydrophobic PVDF membrane

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GB/T 7714 Yu, Fan , Yu, Zijian , Huang, Xuan et al. Effective Membrane Distillation of Landfill Leachate Concentrate Using a Superhydrophobic SiO2/PVDF Membrane for Resource Recovery [J]. | ACS ES&T WATER , 2024 , 4 (4) : 1711-1719 .
MLA Yu, Fan et al. "Effective Membrane Distillation of Landfill Leachate Concentrate Using a Superhydrophobic SiO2/PVDF Membrane for Resource Recovery" . | ACS ES&T WATER 4 . 4 (2024) : 1711-1719 .
APA Yu, Fan , Yu, Zijian , Huang, Xuan , Gu, Ailiang , Du, Jiale , Xie, Shuangling et al. Effective Membrane Distillation of Landfill Leachate Concentrate Using a Superhydrophobic SiO2/PVDF Membrane for Resource Recovery . | ACS ES&T WATER , 2024 , 4 (4) , 1711-1719 .
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Effective Membrane Distillation of Landfill Leachate Concentrate Using a Superhydrophobic SiO2/PVDF Membrane for Resource Recovery Scopus
期刊论文 | 2024 , 4 (4) , 1711-1719 | ACS ES and T Water
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