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学者姓名：侯乙东
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Abstract ：
The development of durable and highly efficient visible-light-driven photocatalysts is essential for the photo- catalytic ozonation process towards degrading organic pollutants. This study presents CN-MA, a novel photo- catalyst synthesized by grafting carbon nitride (CN) with single-atom Mn and 2-hydroxy-4,6-dimethylpyrimidine (HDMP) via one-step thermal polymerization. Experimental characterization and theoretical calculation results reveal that incorporating single-atom Mn and HDMP into CN alters the charge density distribution on the heptazine rings. This modification enhances the absorption of visible light and reduces exciton binding energy, leading to improved separation and migration of photogenerated charge carriers. Moreover, the single-atom Mn provides abundant active sites for O3 adsorption and activation, which increases the utilization of photo- generated electrons to produce highly reactive oxidative species. Consequently, CN-MA exhibits superior photocatalytic ozonation activity, achieving 94% mineralization of phenol within 60 min and maintaining excellent stability over multiple cycles. The research also proposes a plausible reaction mechanism based on free-radical trapping experiments and steady-state concentration experiments using molecular probes. This strategy advances the development of molecular-engineered catalysts co-modified with single metal atoms, thereby enhancing the photocatalytic ozonation process for the degradation of organic pollutants.
Keyword ：
Carbon nitride Carbon nitride Molecular engineering Molecular engineering Photocatalytic ozonation Photocatalytic ozonation Single-atom Single-atom
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| GB/T 7714 | Lai, Zhiming , Yang, Yang , Yang, Zhou et al. Carbon nitride grafted with single-atom manganese and 2-hydroxy-4,6-di-methylpyrimidine: A visible-light-driven photocatalyst for enhanced ozonation of organic pollutants [J]. | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 683 : 1106-1118 . |
| MLA | Lai, Zhiming et al. "Carbon nitride grafted with single-atom manganese and 2-hydroxy-4,6-di-methylpyrimidine: A visible-light-driven photocatalyst for enhanced ozonation of organic pollutants" . | JOURNAL OF COLLOID AND INTERFACE SCIENCE 683 (2025) : 1106-1118 . |
| APA | Lai, Zhiming , Yang, Yang , Yang, Zhou , Ruan, Wenqi , Yang, Can , Chen, Qiang et al. Carbon nitride grafted with single-atom manganese and 2-hydroxy-4,6-di-methylpyrimidine: A visible-light-driven photocatalyst for enhanced ozonation of organic pollutants . | JOURNAL OF COLLOID AND INTERFACE SCIENCE , 2025 , 683 , 1106-1118 . |
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The integration of photoelectrochemical (PEC) technology with persulfate-based advanced oxidation processes has emerged as a promising approach for efficient pollutant removal in environmental remediation. Herein, we developed a novel PEC system combining a Co3O4/BiVO4 (CO/BVO) photoanode with a CoFe2O4/carbon paper (CFO/CP) cathode for activating peroxymonosulfate (PMS) toward bisphenol A (BPA) removal. The enhanced photogenerated charge separation in CO/BVO and the PMS activation by CFO/CP in the PEC system enabled complete BPA degradation within 60 minutes under optimized conditions (1.0 V bias, 1.0 mM PMS). The influence of PMS concentration, applied bias, pH, and coexisting anions on BPA degradation was thoroughly investigated. Radical scavenging experiments combined with electron paramagnetic resonance analysis identified center dot SO4-, center dot OH, and photogenerated holes as dominant reactive species. The system also exhibited good stability over five consecutive cycles, with minimal metal ion leaching. This work demonstrates the potential of an efficient PEC system integrated with sulfate radical-based AOPs, offering an innovative approach for organic pollutant remediation in wastewater treatment.
Keyword ：
Organic removal Organic removal Peroxymonosulfate Peroxymonosulfate Photoelectrocatalytic Photoelectrocatalytic
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| GB/T 7714 | Geng, Xuanran , Zhang, Renfu , Zhang, Peiyun et al. Photoelectrochemical cell with Co3O4/BiVO4 photoanode and CoFe2O4 cathode: An efficient persulfate activation system for organic pollutants degradation [J]. | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2025 , 13 (2) . |
| MLA | Geng, Xuanran et al. "Photoelectrochemical cell with Co3O4/BiVO4 photoanode and CoFe2O4 cathode: An efficient persulfate activation system for organic pollutants degradation" . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING 13 . 2 (2025) . |
| APA | Geng, Xuanran , Zhang, Renfu , Zhang, Peiyun , Yuan, Xiaoying , Yang, Can , Hou, Yidong et al. Photoelectrochemical cell with Co3O4/BiVO4 photoanode and CoFe2O4 cathode: An efficient persulfate activation system for organic pollutants degradation . | JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING , 2025 , 13 (2) . |
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Designing porous structures has proven to be an effective strategy for enhancing the photocatalytic NO oxidation activity of carbon nitride (CN). Despite significant advances in the fabrication of porous CN, a cost-effective and high-yield synthesis method for porous CN is still highly desirable. In this study, we presented a facile strategy to synthesize porous carbon nitride by V2O5-assisted thermal oxidation process. Namely, after grinding bulk CN with a small amount of NH4VO3, the mixture was subjected to thermal treatment, resulting in porous carbon nitride with a yield of 50 %. The resulting porous structure, which features an enlarged surface area and enhanced charge separation efficiency, significantly improved the photocatalytic performance for NO removal-approximately four times higher than bulk CN. Additionally, the NO removal mechanism was investigated through in-situ Fourier transform infrared spectroscopy to observe reaction intermediates and electron paramagnetic resonance trapping experiments to identify active species, providing insight into the conversion pathway. The catalytic thermal oxidation etching process effectively tuned the microstructure of g-C3N4, offering a low-cost, easy-to-implement, and time-efficient method for synthesizing porous CN, thereby providing a promising approach for developing advanced photocatalysts.
Keyword ：
NO oxidation NO oxidation O 2 activation O 2 activation Photocatalysis Photocatalysis Porous carbon nitride Porous carbon nitride
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| GB/T 7714 | Fang, Zixun , Zhou, Yao , Yang, Zhou et al. V2O5-assisted thermal oxidation strategy for synthesizing porous carbon nitride with enhanced photocatalytic NO removal performance [J]. | SURFACES AND INTERFACES , 2025 , 60 . |
| MLA | Fang, Zixun et al. "V2O5-assisted thermal oxidation strategy for synthesizing porous carbon nitride with enhanced photocatalytic NO removal performance" . | SURFACES AND INTERFACES 60 (2025) . |
| APA | Fang, Zixun , Zhou, Yao , Yang, Zhou , Yang, Can , Zhang, Jinshui , Hou, Yidong . V2O5-assisted thermal oxidation strategy for synthesizing porous carbon nitride with enhanced photocatalytic NO removal performance . | SURFACES AND INTERFACES , 2025 , 60 . |
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Persulfate-based advanced oxidation technology, due to its high efficiency, controllability, and safety, shows great potential for the deep removal of organic pollution, yet its mineralization efficiency is hindered by the lack of synergy between radical and nonradical pathways. Herein, we present defective carbon nitride (DCN) as a highly efficient peroxymonosulfate (PMS) activation catalyst that couples nonradical aggregation with radical mineralization. The tailored electronic structure of the DCN framework enhances visible-light absorption, photogenerated charge separation, and electron transfer ability due to a built-in electric field. DCN effectively interacts with PMS to rapidly accumulate pollutants from the bulk solution onto the catalyst surface via an electron-transfer pathway. Simultaneously, the accumulated pollutants undergo in-situ decomposition by center dot SO4- radicals formed on the catalyst surface under visible light irradiation, achieving a remarkable 98 % mineralization ratio. The mixed-pathway process demonstrates excellent cyclic stability and environmental robustness. This study introduces a novel strategy to enhance the catalytic oxidation performance of metal-free catalysts by controlling persulfate activation pathways for water decontamination.
Keyword ：
Carbon nitride Carbon nitride Peroxymonosulfate Peroxymonosulfate Photocatalysis Photocatalysis Pollutant mineralization Pollutant mineralization Synergistic Synergistic
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| GB/T 7714 | Ming, Hongbo , Ruan, Wenqi , Yuan, Xiaoying et al. Defective carbon nitride-Mediated peroxymonosulfate activation: Synergistic radical and nonradical pathways for enhanced pollutant mineralization [J]. | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 360 . |
| MLA | Ming, Hongbo et al. "Defective carbon nitride-Mediated peroxymonosulfate activation: Synergistic radical and nonradical pathways for enhanced pollutant mineralization" . | SEPARATION AND PURIFICATION TECHNOLOGY 360 (2025) . |
| APA | Ming, Hongbo , Ruan, Wenqi , Yuan, Xiaoying , Cheng, Jiajia , Yang, Can , Hou, Yidong et al. Defective carbon nitride-Mediated peroxymonosulfate activation: Synergistic radical and nonradical pathways for enhanced pollutant mineralization . | SEPARATION AND PURIFICATION TECHNOLOGY , 2025 , 360 . |
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Among the current industrial hydrogen production technologies, electrolysis has attracted widespread attention due to its zero carbon emissions and sustainability. However, the existence of overpotential caused by reaction activation, mass/charge transfer, etc. makes the actual water splitting voltage higher than the theoretical value, severely limiting the industrial application of this technology. Therefore, it is particularly important to design and develop highly efficient electrocatalysts to reduce overpotential and improve energy efficiency. Among the various synthesis methods of electrocatalysts, electrochemical synthesis stands out due to its simplicity, easy reaction control, and low cost. This review article classifies and summarizes the electrochemical synthesis techniques (including electrodeposition, electrophoretic deposition, electrospinning, anodic oxidation, electrochemical intercalation, and electrochemical reconstruction), followed by their application in the field of water electrolysis. In addition, some challenges currently faced by electrochemical synthesis in electrocatalytic hydrogen production, and their potential solutions are discussed to promote the practical application of electrochemical synthesis in water electrolysis.Graphical AbstractThis review summarizes and classifies commonly used electrochemical synthesis techniques, followed by the application of electrochemical synthesis methods in research on water electrolysis. Additionally, some challenges faced by electrochemical synthesis in the field of water electrolysis and possible solutions are discussed.
Keyword ：
Electrocatalysts Electrocatalysts Electrochemical synthesis Electrochemical synthesis Green hydrogen Green hydrogen Water splitting Water splitting
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| GB/T 7714 | Wu, Yang , Xiao, Boxin , Liu, Kunlong et al. Electrochemical Synthesis of High-Efficiency Water Electrolysis Catalysts [J]. | ELECTROCHEMICAL ENERGY REVIEWS , 2025 , 8 (1) . |
| MLA | Wu, Yang et al. "Electrochemical Synthesis of High-Efficiency Water Electrolysis Catalysts" . | ELECTROCHEMICAL ENERGY REVIEWS 8 . 1 (2025) . |
| APA | Wu, Yang , Xiao, Boxin , Liu, Kunlong , Wang, Sibo , Hou, Yidong , Lu, Xue Feng et al. Electrochemical Synthesis of High-Efficiency Water Electrolysis Catalysts . | ELECTROCHEMICAL ENERGY REVIEWS , 2025 , 8 (1) . |
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Photocatalytic ozonation emerges as an appealing approach for wastewater purification. However, the kinetic constraints associated with the charge separation and the ozone activation hinder the advancement of photocatalytic ozonation systems. Herein, we prepared CeO2 photocatalysts with predominantly exposed {1 1 0}, {1 0 0}, or {1 1 1} facets, highlighting the synergy role of crystal facet and oxygen vacancies in manipulating electron transfer and ozone activation. The CeO2-{1 1 0} catalyst exhibits the best efficiency for phenol mineralization (69%) in photocatalytic ozonation. Ex-situ, Quasi-situ, and In-situ characterization of the CeO2 catalysts reveal that facet engineering in the CeO2 catalysts optimizes the electronic properties of the catalysts, thereby enhancing the separation of photogenerated charge carriers and transfer of electrons and holes, which provides more electrons for O3 activation and promotes the formation of reactive oxygen species (ROS). Moreover, facet modulating leads to a change in the density of surface oxygen vacancies. The increased oxygen vacancy density on the CeO2-{1 1 0} surface accelerates the activation of O3 and the formation of adsorbed oxygen (*O), synergistically boosting the production rate of ROS. The present study offers valuable insights into the design of efficient photocatalysts for wastewater purification. © 2024 Elsevier Inc.
Keyword ：
CeO2 CeO2 Crystal facet Crystal facet Oxygen vacancies Oxygen vacancies Photocatalytic ozonation Photocatalytic ozonation Synergistic effect Synergistic effect
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| GB/T 7714 | Yang, Z. , Xu, R. , Tao, H. et al. Crystal facet and oxygen vacancies synergistically mediate photocatalytic ozonation for organic pollutants removal over CeO2 [J]. | Journal of Catalysis , 2024 , 438 . |
| MLA | Yang, Z. et al. "Crystal facet and oxygen vacancies synergistically mediate photocatalytic ozonation for organic pollutants removal over CeO2" . | Journal of Catalysis 438 (2024) . |
| APA | Yang, Z. , Xu, R. , Tao, H. , Yang, Y. , Hou, Y. , Wang, K. et al. Crystal facet and oxygen vacancies synergistically mediate photocatalytic ozonation for organic pollutants removal over CeO2 . | Journal of Catalysis , 2024 , 438 . |
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The development of effective, low-cost, and stable photocatalysts for visible-light-driven hydrogen production is desired but challenging. Herein, in the presence of a ternary eutectic salt mixture, poly(heptazine imide) with a crystalline-amorphous interface, is synthesized, which endows improved transfer of charge carriers and enhanced photocatalytic activity for hydrogen production. © 2024 American Chemical Society.
Keyword ：
charge separation charge separation hydrogen production hydrogen production photocatalysis photocatalysis poly(heptazine imide) poly(heptazine imide) water splitting water splitting
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| GB/T 7714 | Wang, Q. , Li, S. , Zheng, D. et al. Prompt Charge Separation at Crystalline-Amorphous Interfaces of Poly(heptazine imides) for Photocatalytic Hydrogen Evolution [J]. | ACS Applied Energy Materials , 2024 , 7 (15) : 6090-6095 . |
| MLA | Wang, Q. et al. "Prompt Charge Separation at Crystalline-Amorphous Interfaces of Poly(heptazine imides) for Photocatalytic Hydrogen Evolution" . | ACS Applied Energy Materials 7 . 15 (2024) : 6090-6095 . |
| APA | Wang, Q. , Li, S. , Zheng, D. , Wang, S. , Hou, Y. , Zhang, G. . Prompt Charge Separation at Crystalline-Amorphous Interfaces of Poly(heptazine imides) for Photocatalytic Hydrogen Evolution . | ACS Applied Energy Materials , 2024 , 7 (15) , 6090-6095 . |
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Sunlight-induced photocatalytic carbon dioxide(CO2)reduction to energy-rich chemicals by metal-free polymeric carbon nitride(CN)semiconductor is a promising tactic for sustained solar fuel production.However,the reaction efficiency of CO2 photoreduction is restrained seriously by the rapid recombination of photogenerated carriers on CN polymer.Herein,we incorporate 2-aminopyridine molecule with strong electron-withdrawing group into the skeleton edge of CN layers through a facile one-pot thermal polymerization strategy using urea as the precursor,which renders a modified carbon nitride(ACN)with extended optical harvesting,abundant nitrogen defects and ultrathin nanosheet structure.Consequently,the ACN photocatalyst with desirable structural features attains enhanced separation and migration of photoexcited charge carriers.Under visible light irradiation with Co(bpy)32+as a cocatalyst,the optimized ACN sample manifests a high CO2 deoxygnative reduction activity and high sta-bility,providing a CO yielding rate of 17 μmol h-1,which is significantly higher than that of pristine CN.The key intermediates engaged in CO2 photoreduction reaction are determined by the in situ diffuse reflectance infrared Fourier transform spectroscopy,which sponsors the construction of the possible photocatalytic CO2 reduction mechanism on ACN nanosheets.
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| GB/T 7714 | Ziruo Zhou , Wenyu Guo , Tingyu Yang et al. Defect and nanostructure engineering of polymeric carbon nitride for visible-light-driven CO2 reduction [J]. | 结构化学 , 2024 , 43 (3) : 10-18 . |
| MLA | Ziruo Zhou et al. "Defect and nanostructure engineering of polymeric carbon nitride for visible-light-driven CO2 reduction" . | 结构化学 43 . 3 (2024) : 10-18 . |
| APA | Ziruo Zhou , Wenyu Guo , Tingyu Yang , Dandan Zheng , Yuanxing Fang , Xiahui Lin et al. Defect and nanostructure engineering of polymeric carbon nitride for visible-light-driven CO2 reduction . | 结构化学 , 2024 , 43 (3) , 10-18 . |
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Abstract ：
The development of effective, low-cost, and stable photocatalysts for visible-light-driven hydrogen production is desired but challenging. Herein, in the presence of a ternary eutectic salt mixture, poly(heptazine imide) with a crystalline-amorphous interface, is synthesized, which endows improved transfer of charge carriers and enhanced photocatalytic activity for hydrogen production.
Keyword ：
charge separation charge separation hydrogen production hydrogen production photocatalysis photocatalysis poly(heptazineimide) poly(heptazineimide) water splitting water splitting
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| GB/T 7714 | Wang, Qian , Li, Shiyao , Zheng, Dandan et al. Prompt Charge Separation at Crystalline-Amorphous Interfaces of Poly(heptazine imides) for Photocatalytic Hydrogen Evolution [J]. | ACS APPLIED ENERGY MATERIALS , 2024 , 7 (15) : 6090-6095 . |
| MLA | Wang, Qian et al. "Prompt Charge Separation at Crystalline-Amorphous Interfaces of Poly(heptazine imides) for Photocatalytic Hydrogen Evolution" . | ACS APPLIED ENERGY MATERIALS 7 . 15 (2024) : 6090-6095 . |
| APA | Wang, Qian , Li, Shiyao , Zheng, Dandan , Wang, Sibo , Hou, Yidong , Zhang, Guigang . Prompt Charge Separation at Crystalline-Amorphous Interfaces of Poly(heptazine imides) for Photocatalytic Hydrogen Evolution . | ACS APPLIED ENERGY MATERIALS , 2024 , 7 (15) , 6090-6095 . |
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Polymeric carbon nitride has been widely developed as a promising photocatalyst for solar hydrogen production via photocatalytic water splitting. However, pristine carbon nitride prepared by traditional solid-state polymerization usually encounters issues such as rapid carrier recombination and insufficient absorption of visible light below 460 nm. Herein, poly(heptazine imide) with a distinctive nanoplate structure was synthesized in a binary molten salt of NaCl-CaCl2. The salt template allows the formation of the thin nanoplate structure, which promotes the charge separation and migration. Besides, the intercalation of Ca2+ ions between the conjugated layers endows the activation of n-pi* electron transition due to the distortion of in-plane heptazine layers. Accordingly, the optimized poly(heptazine imide) nanoplates achieve an apparent quantum efficiency of up to 17.3% at 500 nm for photocatalytic hydrogen production from water. This work shares new idea for rational control of the optical absorption and charge carrier dynamics of poly(heptazine imide).
Keyword ：
hydrogen production hydrogen production ion intercalation ion intercalation nanoplates nanoplates photocatalysis photocatalysis poly heptazine imide poly heptazine imide
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| GB/T 7714 | Zou, Yanmin , Li, Shiyao , Zheng, Dandan et al. Extended light absorption and accelerated charge migration in ultrathin twisted carbon nitride nanoplates for efficient solar hydrogen production [J]. | SCIENCE CHINA-CHEMISTRY , 2024 , 67 (7) : 2215-2223 . |
| MLA | Zou, Yanmin et al. "Extended light absorption and accelerated charge migration in ultrathin twisted carbon nitride nanoplates for efficient solar hydrogen production" . | SCIENCE CHINA-CHEMISTRY 67 . 7 (2024) : 2215-2223 . |
| APA | Zou, Yanmin , Li, Shiyao , Zheng, Dandan , Feng, Jianyong , Wang, Sibo , Hou, Yidong et al. Extended light absorption and accelerated charge migration in ultrathin twisted carbon nitride nanoplates for efficient solar hydrogen production . | SCIENCE CHINA-CHEMISTRY , 2024 , 67 (7) , 2215-2223 . |
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