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学者姓名：詹瑛瑛
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Abstract ：
The limited degradability and high production costs associated with traditional epoxy resin pose obstacles to its sustainable development. In this study, hybrid material of epoxidized soybean oil-derived epoxy resin (ESOR) and hydrothermal carbon microspheres (HTCs) was designed. Investigations confirmed the presence of diverse oxygen-containing groups on the HTCs, with the carboxyl content specially increased through air activation, which also increased the specific surface area. These alterations enhanced the interfacial interactions between HTCs and ESOR. As a result, the optimized composite exhibited the most notable tensile strength of 3.91 MPa, approximately 22.6 % higher than that of the pure ESOR. Importantly, the incorporation of the air-activated HTCs, which had the water holding and cation exchange capabilities, significantly enhanced the degradability of the ESOR matrix, about 68.3 wt% and 100.0 wt% of the ESOR decomposed respectively from 5HTC300/ESOR and 7 HTC300/ESOR immersed in 0.5 wt% NaOH for 15 day, without the use of organic solvents. While applying the composite materials in coated fertilizers with a 0.5 wt% paraffin outer layer, the best one can slowly release 47.7 % P in 20 days.
Keyword ：
Air-activation Air-activation Bio-based epoxy resin Bio-based epoxy resin Coated fertilizers Coated fertilizers Degradability Degradability Hydrothermal carbon microspheres Hydrothermal carbon microspheres
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| GB/T 7714 | Zhan, Yingying , Yang, Honglin , Guo, Caiyan et al. Improving the degradability of epoxy resin with enhanced mechanical properties via hydrothermal carbon microspheres [J]. | JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY , 2025 , 142 : 177-186 . |
| MLA | Zhan, Yingying et al. "Improving the degradability of epoxy resin with enhanced mechanical properties via hydrothermal carbon microspheres" . | JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY 142 (2025) : 177-186 . |
| APA | Zhan, Yingying , Yang, Honglin , Guo, Caiyan , Li, Xiang , Wang, Shiping , Zheng, Xiaohai et al. Improving the degradability of epoxy resin with enhanced mechanical properties via hydrothermal carbon microspheres . | JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY , 2025 , 142 , 177-186 . |
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Catalytic hydrolysis was considered as an efficient technology to remove carbonyl sulfide (COS). The introduction of oxygen vacancy (Ov) is a promising strategy to improve the catalytic performance of COS hydrolysis by promoting the adsorption and activation of reactants. Herein, we reported a Cu-doped TiO2 nanoflower with abundant oxygen vacancies for COS hydrolysis. The Cu species successfully entered the crystal lattice of TiO2 and induced more oxygen vacancies than pure TiO2. The Ov sites can effectively reduce the adsorption and activation energy of COS and H2O. Benefiting from the ample Ov sites, the resulting CuTiO2-δ-F achieved nearly 100 % COS conversion at 70 °C and 93.5 % H2S yield at 130 °C, which is better than that of pure TiO2. Furthermore, in situ FT-IR measurements and density functional theory (DFT) calculations were performed to reveal the reaction pathway in COS hydrolysis. © 2024 Elsevier B.V.
Keyword ：
Activation energy Activation energy Copper Copper Copper compounds Copper compounds Density functional theory Density functional theory Hydrolysis Hydrolysis Infrared imaging Infrared imaging Nanoflowers Nanoflowers Oxygen vacancies Oxygen vacancies Sulfur compounds Sulfur compounds Titanium dioxide Titanium dioxide
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| GB/T 7714 | Zheng, Xiaohai , Huang, Rui , Li, Bang et al. Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-δ nanoflowers [J]. | Chemical Engineering Journal , 2024 , 492 . |
| MLA | Zheng, Xiaohai et al. "Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-δ nanoflowers" . | Chemical Engineering Journal 492 (2024) . |
| APA | Zheng, Xiaohai , Huang, Rui , Li, Bang , Jiang, Weiping , Shen, Lijuan , Lei, Ganchang et al. Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-δ nanoflowers . | Chemical Engineering Journal , 2024 , 492 . |
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The conversion of H2S to high-value-added products is appealing for alleviating environmental pollution and realizing resource utilization. Herein, we report the reduction of nitrobenzene to aniline using waste H2S as a 'hydrogen donor' over the catalyst of FeCeO2−δ with abundant oxygen vacancies (Ov), especially an asymmetric oxygen vacancy (ASOv). The electron-rich nature of the ASOv sites facilitates electron transfer to the electron-deficient nitro group, promoting the adsorption and activation of Ph-NO2 through the elongation and cleavage of the N-O bond. Benefiting from the formation of abundant ASOv sites, the resulting FeCeO2−δ achieves an impressive 85.6% Ph-NO2 conversion and 81.9% Ph-NH2 selectivity at 1.5 MPa and 90 °C, which surpasses that of pure CeO2 with flower and rod morphologies. In situ FT-IR measurements combined with density functional theory calculations have elucidated a plausible reaction mechanism and a rate-limiting step in the hydrogenation of Ph-NO2 by H2S. © 2024 American Chemical Society.
Keyword ：
Aniline Aniline Cerium oxide Cerium oxide Density functional theory Density functional theory Hydrogen Hydrogen Hydrogenation Hydrogenation Infrared imaging Infrared imaging Iron compounds Iron compounds Nitrobenzene Nitrobenzene Nitrogen oxides Nitrogen oxides Oxygen vacancies Oxygen vacancies
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| GB/T 7714 | Zheng, Xiaohai , Li, Bang , Huang, Rui et al. Asymmetric Oxygen Vacancy-Promoted Synthesis of Aminoarenes from Nitroarenes Using Waste H2S as a 'Hydrogen Donor' [J]. | ACS Catalysis , 2024 , 14 (13) : 10245-10259 . |
| MLA | Zheng, Xiaohai et al. "Asymmetric Oxygen Vacancy-Promoted Synthesis of Aminoarenes from Nitroarenes Using Waste H2S as a 'Hydrogen Donor'" . | ACS Catalysis 14 . 13 (2024) : 10245-10259 . |
| APA | Zheng, Xiaohai , Li, Bang , Huang, Rui , Jiang, Weiping , Shen, Lijuan , Lei, Ganchang et al. Asymmetric Oxygen Vacancy-Promoted Synthesis of Aminoarenes from Nitroarenes Using Waste H2S as a 'Hydrogen Donor' . | ACS Catalysis , 2024 , 14 (13) , 10245-10259 . |
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Abstract ：
Catalytic hydrolysis was considered as an efficient technology to remove carbonyl sulfide (COS). The introduction of oxygen vacancy (Ov) is a promising strategy to improve the catalytic performance of COS hydrolysis by promoting the adsorption and activation of reactants. Herein, we reported a Cu-doped TiO2 nanoflower with abundant oxygen vacancies for COS hydrolysis. The Cu species successfully entered the crystal lattice of TiO2 and induced more oxygen vacancies than pure TiO2. The Ov sites can effectively reduce the adsorption and activation energy of COS and H2O. Benefiting from the ample Ov sites, the resulting CuTiO2-8-F achieved nearly 100 % COS conversion at 70 degrees C and 93.5 % H2S yield at 130 degrees C, which is better than that of pure TiO2. Furthermore, in situ FT-IR measurements and density functional theory (DFT) calculations were performed to reveal the reaction pathway in COS hydrolysis.
Keyword ：
Anatase TiO 2 Anatase TiO 2 COS hydrolysis COS hydrolysis Cu doping Cu doping DFT calculation DFT calculation Oxygen vacancy Oxygen vacancy
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| GB/T 7714 | Zheng, Xiaohai , Huang, Rui , Li, Bang et al. Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-8 nanoflowers [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 492 . |
| MLA | Zheng, Xiaohai et al. "Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-8 nanoflowers" . | CHEMICAL ENGINEERING JOURNAL 492 (2024) . |
| APA | Zheng, Xiaohai , Huang, Rui , Li, Bang , Jiang, Weiping , Shen, Lijuan , Lei, Ganchang et al. Oxygen vacancies-promoted removal of COS via catalytic hydrolysis over CuTiO2-8 nanoflowers . | CHEMICAL ENGINEERING JOURNAL , 2024 , 492 . |
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Abstract ：
The use of bio-oil-based polymers in fertilizer coatings has drawn significant academic interest. However, the challenge remains to eliminate toxic chemicals while enhancing comprehensive properties. This study focused on synthesizing a degradable polymer from epoxidized soybean oil (ESO) without organic solvent at low temperature (120 degrees C), accomplished through a modified curing agent (MCA). This MCA was made of an acidic eutectic mixture of phthalic anhydride (PA) and its glycerides, produced from inexpensive, low-toxic phthalic anhydride and glycerol. The process utilized a small quantity of zinc acetate (0.5 wt%) to facilitate the formation of phthalic triglyceride in the MCA and mitigate PA sublimation, resulting in the enhanced cross-link degree, superior mechanical properties and hydrophobicity of the ESO-based resin (ESOR). Under optimal preparation conditions, the solvent-free ESOR-coated fertilizer exhibited an extended longevity of 53 days, with an 80 % phosphorus release. This coating material can undergo hydrolytic degradation in soil and in-situ conversion into carboxylates. These findings hold significant potential for advancing the applications of ESOR in green and sustainable agriculture.
Keyword ：
Coated fertilizer Coated fertilizer Epoxidized soybean oil Epoxidized soybean oil Facile curing Facile curing
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| GB/T 7714 | Zhan, Yingying , Guo, Caiyan , Yang, Honglin et al. Moderate-temperature curing of epoxidized soybean oil for highly efficient coated fertilizer [J]. | INDUSTRIAL CROPS AND PRODUCTS , 2024 , 220 . |
| MLA | Zhan, Yingying et al. "Moderate-temperature curing of epoxidized soybean oil for highly efficient coated fertilizer" . | INDUSTRIAL CROPS AND PRODUCTS 220 (2024) . |
| APA | Zhan, Yingying , Guo, Caiyan , Yang, Honglin , Li, Xiang , Wang, Shiping , Zheng, Xiaohai et al. Moderate-temperature curing of epoxidized soybean oil for highly efficient coated fertilizer . | INDUSTRIAL CROPS AND PRODUCTS , 2024 , 220 . |
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The catalytic cleavage of carbon-sulfur (C & boxH;S) double bonds on the metal sites without deactivation has aroused great interest in both fundamental catalytic research and industrial chemistry. Herein, activity descriptors are developed via machine learning and density functional theory (DFT) calculations to screen transition-metal single-site catalysts, which quantify the effect of both atomic electronic properties and coordination configuration on the hydrolysis of C & boxH;S double bonds. The valence electron number and electronegativity of active sites are found to be well related to C & boxH;S activation and sulfur poisoning, where Fe demonstrates high catalytic potential among a series of metal centers. On the other hand, the isolated Fe-1 and Fe-2 sites favor carbonyl sulfide (COS) adsorption and activation, while the COS easily dissociates into *S and *CO on Fe-3 hollow site, thus resulting in the formation of robust Fe-S bonds and catalyst deactivation. As anticipated, the as-designed Fe-1-N-4 site achieves a COS conversion of ca. 96% at 100 degrees C, slightly better than the Fe-2-N-4 site, approximately 8 times higher than that of the Fe/C, which is also better than those of other monatomic catalysts (such as Co-NC, Ni-NC, Sn-NC, and Bi-NC). The combination of in situ characterizations and theoretical calculations suggests that *COS and *H2O/*OH have a competitive adsorption relationship on Fe-N-4 sites, and two Fe-N-4 sites can synergistically catalyze the COS hydrolysis through the spilled H and OH.
Keyword ：
carbon-sulfurbonds cleavage carbon-sulfurbonds cleavage hydrolysis mechanism exploration hydrolysis mechanism exploration isolated Fe-N-4 site isolated Fe-N-4 site metal activesite design metal activesite design valence electron descriptor valence electron descriptor
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| GB/T 7714 | Lei, Ganchang , Lin, Xiaoyun , Yan, Hongping et al. Valence Electron and Coordination Structure Guided Metal Active Site Design for Hydrolytic Cleavage of Carbon-Sulfide Double Bonds [J]. | ACS CATALYSIS , 2024 , 14 (22) : 17103-17112 . |
| MLA | Lei, Ganchang et al. "Valence Electron and Coordination Structure Guided Metal Active Site Design for Hydrolytic Cleavage of Carbon-Sulfide Double Bonds" . | ACS CATALYSIS 14 . 22 (2024) : 17103-17112 . |
| APA | Lei, Ganchang , Lin, Xiaoyun , Yan, Hongping , Shen, Lijuan , Wang, Shiping , Liang, Shijing et al. Valence Electron and Coordination Structure Guided Metal Active Site Design for Hydrolytic Cleavage of Carbon-Sulfide Double Bonds . | ACS CATALYSIS , 2024 , 14 (22) , 17103-17112 . |
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Abstract ：
The conversion of H2S to high-value-added products is appealing for alleviating environmental pollution and realizing resource utilization. Herein, we report the reduction of nitrobenzene to aniline using waste H2S as a "hydrogen donor" over the catalyst of FeCeO2-delta with abundant oxygen vacancies (Ov), especially an asymmetric oxygen vacancy (ASOv). The electron-rich nature of the ASOv sites facilitates electron transfer to the electron-deficient nitro group, promoting the adsorption and activation of Ph-NO2 through the elongation and cleavage of the N-O bond. Benefiting from the formation of abundant ASOv sites, the resulting FeCeO2-delta achieves an impressive 85.6% Ph-NO2 conversion and 81.9% Ph-NH2 selectivity at 1.5 MPa and 90 degrees C, which surpasses that of pure CeO2 with flower and rod morphologies. In situ FT-IR measurements combined with density functional theory calculations have elucidated a plausible reaction mechanism and a rate-limiting step in the hydrogenation of Ph-NO2 by H2S.
Keyword ：
asymmetric oxygen vacancy asymmetric oxygen vacancy CeO2 CeO2 density functional theory density functional theory H2S utilization H2S utilization nitrobenzene hydrogenation nitrobenzene hydrogenation
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| GB/T 7714 | Zheng, Xiaohai , Li, Bang , Huang, Rui et al. Asymmetric Oxygen Vacancy-Promoted Synthesis of Aminoarenes from Nitroarenes Using Waste H2S as a "Hydrogen Donor" [J]. | ACS CATALYSIS , 2024 , 14 (13) : 10245-10259 . |
| MLA | Zheng, Xiaohai et al. "Asymmetric Oxygen Vacancy-Promoted Synthesis of Aminoarenes from Nitroarenes Using Waste H2S as a "Hydrogen Donor"" . | ACS CATALYSIS 14 . 13 (2024) : 10245-10259 . |
| APA | Zheng, Xiaohai , Li, Bang , Huang, Rui , Jiang, Weiping , Shen, Lijuan , Lei, Ganchang et al. Asymmetric Oxygen Vacancy-Promoted Synthesis of Aminoarenes from Nitroarenes Using Waste H2S as a "Hydrogen Donor" . | ACS CATALYSIS , 2024 , 14 (13) , 10245-10259 . |
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Developing highly efficient catalysts for the transformation of hydrogen sulfide (H2S) pollutants into value-added products is crucial for both fundamental catalytic research and industrial chemistry. Herein, ferrititanate nanosheets (H0.8Ti1.2Fe0.8O4, denoted as NS-HTFO) exfoliated from lepidocrocite-type titanates are employed for the first time to catalyze the conversion of H2S to elemental sulfur. Collective experimental characterizations reveal that the as-designed NS-HTFO catalyst possesses ultrathin 2D structure and a large specific surface area, featuring abundant oxygen vacancies. Compared with its sandwich-like precursor of K0.8Ti1.2Fe0.8O4 (denoted as L-KTFO), the NS-HTFO catalyst displays notably enhanced desulfurization activity, achieving 100 % H2S conversion and over 93 % sulfur selectivity at temperatures ranging from 90 to 270 degrees C. Moreover, no significant decline in sulfur yield is observed over the course of a 100-hour evaluation, showing outstanding breakthrough sulfur capacity up to 4163 mg/gcat. This performance exceeds that of most recently reported catalysts. The possible catalytic mechanism for H2S-to-S selective oxidation over the NS-HTFO catalyst has also been investigated.
Keyword ：
H2S-to-S selective oxidation H2S-to-S selective oxidation Oxygen vacancies Oxygen vacancies Surface basicity Surface basicity Ultrathin 2D structure Ultrathin 2D structure
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| GB/T 7714 | Lei, Ganchang , Yao, Zheng , Qu, Jingqi et al. Modulating oxygen vacancies of Fe-doped Ti-based materials with ultrathin nanosheets for enhancing H2S-to-S selective oxidation [J]. | CHEMICAL ENGINEERING JOURNAL , 2024 , 485 . |
| MLA | Lei, Ganchang et al. "Modulating oxygen vacancies of Fe-doped Ti-based materials with ultrathin nanosheets for enhancing H2S-to-S selective oxidation" . | CHEMICAL ENGINEERING JOURNAL 485 (2024) . |
| APA | Lei, Ganchang , Yao, Zheng , Qu, Jingqi , Chen, Jiaxin , Shen, Lijuan , Zheng, Xiaohai et al. Modulating oxygen vacancies of Fe-doped Ti-based materials with ultrathin nanosheets for enhancing H2S-to-S selective oxidation . | CHEMICAL ENGINEERING JOURNAL , 2024 , 485 . |
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The high cost and difficulty in sustainability have hindered the wide application of the general synthetic resins in the controlled-release fertilizers (CRF). Here, the degradable castor oil-based polyurethane (PU) was filled by the natural pyrophyllite (PY) powders, which were pre-modified with few amount (<0.5 %) of NDZ-201 coupling agent though a simple and economic mechanochemical method. Furthermore, the composite materials of PU and the modified PY (MPY/PU) with enhanced comprehensive properties were prepared and applied in CRF. Moreover, the release behaviors of the coated fertilizers were investigated while tuning the addition amount of modifier or the filling amount of MPY, and it was confirmed that the release performance was highly depended on the hydrophobic and mechanical properties of the composite coating. As a result, the best optimized MPY/PU coating exhibited significantly superior performance to the pure PU materials, and the duration of 80 % nitrogen release was more than 40 days. This confirms that the MPY/PU composite is a promising coating material for the CRF granules.(c) 2022 The Author(s). Published by Elsevier B.V. on behalf of King Saud University. This is an open access article under the CC BY-NC-ND license (http://creativecommons.org/licenses/by-nc-nd/4.0/).
Keyword ：
Composite material Composite material Controlled-release fertilizer Controlled-release fertilizer Hydrolytic stability Hydrolytic stability Mechanochemical modifica-tion Mechanochemical modifica-tion Pyrophyllite Pyrophyllite
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| GB/T 7714 | Wang, Shiping , Li, Xiang , Ren, Kun et al. Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer [J]. | ARABIAN JOURNAL OF CHEMISTRY , 2023 , 16 (2) . |
| MLA | Wang, Shiping et al. "Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer" . | ARABIAN JOURNAL OF CHEMISTRY 16 . 2 (2023) . |
| APA | Wang, Shiping , Li, Xiang , Ren, Kun , Huang, Rui , Lei, Ganchang , Shen, Lijuan et al. Surface modification of pyrophyllite for optimizing properties of castor oil-based polyurethane composite and its application in controlled-release fertilizer . | ARABIAN JOURNAL OF CHEMISTRY , 2023 , 16 (2) . |
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Although controlled-release fertilizer (CRF) is a safer and more efficient strategy to administer nutrients for plant growth, it is still a daunting task to reduce the cost and improve the degradability of the synthetic resin coatings. In this paper, an inorganic/organic composite coating for urea fertilizer was prepared from a biodegradable castor oil-based polyurethane (PU) filled with the layered Na-bentonite (Na-BT), which was ultrasonically treated by a series of green PEG surfactants. Synergistically influenced by various intercalation ability, cation-hosting ability and hydrophilicity of the PEGs, the porous structures of the modified Na-BT (MBT) fillers were simply tuned by varying the Mn molecular weights of the PEGs, resulting in the adjustable water swelling and me-chanical properties of the MBT/PU composites. Moreover, it was confirmed that the water swelling property played a critical role in controlling the early stage of nutrient release, and the mechanical properties were important for the longevity of nutrient release from the CRFs. The best MBT/PU composite supported a CRF with a long-term release of 75 % in 38 days, which was much longer than the one based on pure PU (20 days).
Keyword ：
Composite coating Composite coating Intercalation Intercalation Mechanical property Mechanical property Surface charge Surface charge Water replacement Water replacement Water swelling Water swelling
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| GB/T 7714 | Wang, Shiping , Huang, Rui , Ren, Kun et al. Structural control of PEG-intercalating Na-bentonite and its influence on the properties of castor oil-based polyurethane coating [J]. | PROGRESS IN ORGANIC COATINGS , 2023 , 178 . |
| MLA | Wang, Shiping et al. "Structural control of PEG-intercalating Na-bentonite and its influence on the properties of castor oil-based polyurethane coating" . | PROGRESS IN ORGANIC COATINGS 178 (2023) . |
| APA | Wang, Shiping , Huang, Rui , Ren, Kun , Shen, Lushen , Li, Xiang , Lei, Ganchang et al. Structural control of PEG-intercalating Na-bentonite and its influence on the properties of castor oil-based polyurethane coating . | PROGRESS IN ORGANIC COATINGS , 2023 , 178 . |
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