Article
Chemistry, Multidisciplinary
Huilai Liu, Minshu Cui, Yao Liu, Defeng Kong, Zhihao Li, Rohan Weerasooriya, Xing Chen
Summary: Sulfamethoxazole (SMX), a commonly used antibiotic drug, is often found in water and wastewater due to medical applications. Traditional treatment methods are ineffective in removing SMX from water. The heterogeneous electro-Fenton process, using Fe2O3/MXene-x as catalysts, shows promise in degrading antibiotic drugs. The new electrocatalyst demonstrated reduced metal ions leaching and good stability, offering a potential solution for the destruction of antibiotic drugs in water and wastewater.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Environmental
Thiago H. G. da Silva, Rafaely X. S. Furtado, Marcelo Zaiat, Eduardo B. Azevedo
Summary: This study assessed the feasibility of coupling the heterogeneous Fenton process to biologically treated domestic sewage for the removal of diclofenac, ranitidine, and simvastatin. The results showed that the purified natural zeolite impregnated with iron was an effective catalyst for the process. However, the process had disadvantages such as high hydrogen peroxide consumption and size exclusion effects.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Huan-Yan Xu, Yan Xu, Si-Qun Zhang, Li-Yuan Dai, Yuan Wang
Summary: Heterogeneous Fenton-like reactions in the confined space of a nanoreactor showed higher efficiency than those in bulk solution. In this study, a Fenton-like nanoreactor was designed by selectively filling Fe3O4 nanoparticles into the lumen of halloysite. Experimental results demonstrated that this nanoreactor could significantly accelerate the degradation of 50 mg/L methyl orange in the presence of H2O2. .OH and O-1(2) were identified as the main reactive radicals. A space confinement mechanism was proposed to explain the enhanced Fenton-like efficiency and radicals formation pathways.
Article
Engineering, Environmental
Menghan Sun, Liangzhi Zou, Pengcheng Wang, Xinfei Fan, Zonglin Pan, Yanming Liu, Chengwen Song
Summary: This study proposes a membrane-based Fenton process with immobilized nano zero valent iron (NZVI) in a CNT membrane for efficient degradation of pollutants. The Fe0-CNT catalytic membrane enhances the generation rate of (OH)-O-center dot through the cycle of ferrous and ferric ions, while also improving mass transfer. The membrane shows high removal efficiency for various organic contaminants and is not significantly affected by environmental factors, suggesting its potential for wastewater treatment applications.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Environmental
Xi Chen, Xin Tong, Jiabin Gao, Lijuan Yang, Jianuo Ren, Weijie Yang, Su Liu, Meng Qi, John Crittenden, Runlong Hao
Summary: A bifunctional beta-FeOOH@MXene material was fabricated and showed excellent performance in nitrite oxidation and Hg2+ removal. The synergism between MXene and beta-FeOOH played a key role in the material's outstanding abilities.
ENVIRONMENTAL SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Environmental
Minghui Xiang, Maofang Huang, Hui Li, Wenbing Wang, Yuan Huang, Zhen Lu, Chen Wang, Ruofan Si, Wei Cao
Summary: In this study, novel nanoscale zero-valent iron/cobalt@mesoporous hydrated silica core-shell particles were synthesized for the rapid degradation of Tetrabromobisphenol A. By optimizing the catalyst ratio and reaction conditions, the particles exhibited excellent reactivity and mineralization activity for TBBPA removal.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Environmental Sciences
Mahdieh Raji, Seyed Ahmad Mirbagheri, Fei Ye, Joydeep Dutta
Summary: The ACC-CH-nZVI catalyst shows high efficiency and low iron leaching in treating melanoidin wastewater, indicating its high economic value.
Article
Water Resources
Maliheh Pourshaban-Mazandarani, Mohammad Ahmadian, Alireza Nasiri, Ali Poormohammadi
Summary: CuCoFe2O4@Activated Carbon was synthesized and used as a new magnetic nanocatalyst in Fenton-like reaction for ciprofloxacin degradation. The nanocomposite exhibited good thermal stability and high catalytic activity. The maximum removal efficiency of ciprofloxacin reached 95.77% under the optimal conditions.
APPLIED WATER SCIENCE
(2023)
Article
Chemistry, Physical
Xin Nie, Guiying Li, Shanshan Li, Yingmei Luo, Wenming Luo, Quan Wan, Taicheng An
Summary: A novel hexapod-like pyrite nanosheets mineral cluster was prepared using a hydrothermal method, exhibiting high adsorption capacity and catalytic activity for ciprofloxacin degradation. The study identified inhibitory effects of certain ions on the degradation process and proposed a mechanism for the detoxification of toxic intermediates produced during the reaction.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Engineering, Environmental
Zeng-Hui Diao, Wen-Xuan Zhang, Jing-Yi Liang, Shi-Ting Huang, Fu-Xin Dong, Liu Yan, Wei Qian, Wei Chu
Summary: This study demonstrated the efficient removal of herbicide ATZ from soil using the BC-nZVI/PMS process, showcasing a synergistic effect between BC/PMS and nZVI/PMS processes. Additionally, coexisting pollutants such as Cu and Cd were also simultaneously removed from soil using this process.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Chao Xue, Yuanming Peng, Anwei Chen, Liang Peng, Si Luo
Summary: The presence of L-cysteine was found to inhibit the oxidation process of rhodamine B in the zero-valent iron (nZVI)/O-2 system. Cysteine reduced the production of hydroxyl radicals ((OH)-O-center dot) and Fe2+ and Fe3+, possibly through forming hydrogen bonds on the iron surface. Additionally, cystine could react with (OH)-O-center dot, competing with RhB for oxidation, and also prevent the utilization of light. These findings suggest a significant inhibitory effect of amino acids on the heterogeneous Fenton process in wastewater treatment.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Engineering, Chemical
Ruixia Yang, Qiaohong Peng, Bing Yu, Youqing Shen, Hailin Cong
Summary: The yolk-shell Fe3O4@MOF-5 nanocomposites exhibited excellent catalytic performance, high specific surface area, superparamagnetic behavior, and remarkable stability in pollutant solutions.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Engineering, Environmental
Zhe Zhao, Wuming Xie, Zijun Huang, Haiming Cai, Yuemeng Ji, Baocong Zhao
Summary: The synthetic nano zero-valent iron (NZVI@MIL-53(Al)) supported by MIL-53 (Al) was successful in activating hydrogen peroxide (H2O2) to initiate the Fenton reaction for the removal of florfenicol (FF) antibiotics in water bodies. The NZVI@MIL-53(Al) showed good dispersion and stability, achieving 100% degradation of FF antibiotics under optimal reaction conditions.
CHEMICAL ENGINEERING JOURNAL
(2023)
Review
Environmental Sciences
Chuanbin Wang, Jingya Ye, Lan Liang, Xiaoqiang Cui, Lingchao Kong, Ning Li, Zhanjun Cheng, Wenchao Peng, Beibei Yan, Guanyi Chen
Summary: This review provides a summary of the application of MXene-based materials in Fenton-like systems for the removal of organic matter. Four types of MXene-based materials were introduced and their performance and mechanisms in the adsorption and oxidation processes of organic pollutants were systematically summarized. Finally, the existing problems and future research directions of MXene-based materials in Fenton-like wastewater treatment systems were proposed.
SCIENCE OF THE TOTAL ENVIRONMENT
(2023)
Article
Engineering, Environmental
Junrui Feng, Ying Zhang
Summary: CuFe2O4 particles were synthesized using the sol-gel self-combustion method and the enhancing mechanism of ascorbic acid (AA) in the CuFe2O4 photo-Fenton system was investigated. The presence of AA significantly improved the catalytic degradation efficiency, leading to a more effective generation of reactive species and homogeneous Fenton effect.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2023)
Article
Multidisciplinary Sciences
Chenchen Meng, Baofu Ding, Shaoze Zhang, Lele Cui, Kostya Ken Ostrikov, Ziyang Huang, Bo Yang, Jae-Hong Kim, Zhenghua Zhang
Summary: The global shortage of freshwater and inadequate access to clean water have led to the development of efficient technologies for water purification. Heterogeneous catalysis is a highly promising solution and sub-nanometer-confined reactions have been found to achieve unprecedented reaction rates. This study successfully demonstrates the degradation of water contaminants at an incredibly fast rate using a two-dimensional laminate membrane assembled from cobalt-doped titanium oxide nanosheets.
NATURE COMMUNICATIONS
(2022)
Article
Environmental Sciences
Sen Lu, Xuechuan Li, Yunkai Liao, Zhenghua Zhang, Haijian Luo, Guan Zhang
Summary: The photoelectrocatalytic (PEC) process is a promising technology for ammonia oxidation in water treatment, but limited in situ generation of oxidants, slow mass transfer, and nitrate/nitrite by-products hinder its further application. In this study, different transition metals (Ni, Fe, Mn, Co, Cu) were screened as graphite felt (GF) cathode modifiers, and the Ni-GF cathode showed the best electrocatalytic activity for H2O2 generation. The PEC system composed of Ni-GF cathode and optimized titania nanotubes (TNTs) photoanode efficiently converted ammonia to N2 without nitrate/nitrite by-products. The synergistic oxidation system demonstrated the simultaneous generation of oxidants on both anode and cathode, and reactive oxygen-based oxidants and chlorine-based oxidants played a leading role in ammonia oxidation.
Correction
Chemistry, Multidisciplinary
Wei Guan, Gaoge Sun, Lei Yin, Zhenghua Zhang, Shichao Tian
FRONTIERS IN CHEMISTRY
(2023)
Article
Chemistry, Physical
Wei Zhang, Shaoze Zhang, Chenchen Meng, Zhenghua Zhang
Summary: Sulfate radical-based advanced oxidation processes (SR-AOPs) are an efficient method for removing organic pollutants in water bodies. A novel cobalt-functionalized graphitic carbon nitride (Co@g-C3N4) membrane has been designed and prepared for the first time, which can activate peroxymonosulfate (PMS) to degrade pollutants and maintain stability during long-term operation.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Muhammad Bilal Asif, Hongyu Kang, Zhenghua Zhang
Summary: This study presents a novel strategy of using CoAl-LMO membrane and PMS for Fenton-like catalysis, which effectively degrades various pharmaceuticals and personal care products (PPCP) in water treatment. The system demonstrates long-term stability and offers a potential sustainable solution for efficient removal of PPCPs.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Yang Li, Bingxuan Ji, Ziyang Chen, Zhenghua Zhang
Summary: Using membrane distillation with dopamine-functionalized PTFE membranes (DA@PTFE) can effectively reduce membrane fouling caused by natural organic matter in secondary effluent, thus increasing the water production rate and stability of the MD system. The DA@PTFE membranes demonstrated improved MD performance with increased flow rate and reduced flux decay compared to pristine PTFE membranes. Additionally, the DA@PTFE membranes exhibited high water quality permeate with high rejection rates of conductivity and dissolved organic carbon. This study highlights the potential of DA@PTFE membranes for real application in reclaimed water treatment.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Engineering, Chemical
Bingxuan Ji, Muhammad Bilal Asif, Zhenghua Zhang
Summary: To effectively control membrane fouling, researchers coupled a photothermally-activated PMS pre-treatment process with a direct contact (DC)-MD module. The pre-treatment achieved significant removal of UV254 and dissolved organic carbon, allowing stable operation of the DC-MD system without reduced water permeance. The pre-treatment process altered the composition of natural organic matter (NOM), facilitating membrane fouling control.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Review
Environmental Sciences
Xiaoyu Zhao, Zhenghua Zhang
Summary: Advanced oxidation processes (AOPs) have proven to be effective in degrading recalcitrant pollutants in wastewater, and researchers have been focusing on advanced catalytic materials to improve AOP efficiency. Recent studies have shown the catalytic activity of FeOCl in AOP systems, leading to research on the modification and application of FeOCl-based materials. This review summarizes the progress in FeOCl as AOP catalysts and provides future perspectives for research.
CURRENT POLLUTION REPORTS
(2023)
Article
Engineering, Chemical
Yang Li, Bingxuan Ji, Ziyang Chen, Zhenghua Zhang
Summary: Secondary effluent from municipal wastewater treatment plants can be converted into reclaimed water using membrane distillation (MD), providing a potential solution to the global water crisis. Researchers have developed a novel surface-modified PTFE membrane to overcome membrane fouling and improve the performance of MD systems. This study demonstrates the feasibility of using the Tyr/PDA@PTFE membrane for effective treatment of secondary effluent and production of reclaimed water.
JOURNAL OF MEMBRANE SCIENCE
(2023)
Article
Engineering, Chemical
Bingxuan Ji, Yang Li, Zhenghua Zhang
Summary: Electrochemically activated peroxymonosulfate (PMS) treatment reduces membrane fouling and improves desalination performance in membrane distillation (MD) processes. Continuous supply of 0.10 mM/min PMS can eliminate 30.4% of dissolved organic carbon (DOC). Electrochemically activated PMS pretreatment for 60 minutes removes >60% of fluorescent substances.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Biochemistry & Molecular Biology
Chengyue Li, Xin Du, Chuyi Huang, Zhenghua Zhang
Summary: This study investigated the efficiency of MBR technology in treating synthetic wastewater with high pharmaceutical concentrations. The results showed that MBR systems can effectively remove organics, however, high pharmaceutical concentrations can lead to membrane fouling and microbial differences. This study provides useful insights for wastewater treatment with high pharmaceutical concentrations.
Article
Chemistry, Physical
Wei Zhang, Shaoze Zhang, Zhen Chen, Zhenghua Zhang
Summary: Membrane-based nanoconfinement catalysis combined with advanced oxidation processes (AOPs) and membrane filtration can efficiently and rapidly remove organic pollutants. In this study, cobalt-ferrite-doped graphitic carbon nitride (CoFe2O4@g-C3N4) nanoconfined catalytic membranes were fabricated to activate peroxymonosulfate (PMS) for efficient water purification with the rapid degradation of pollutants. The CoFe2O4@g-C3N4 membrane/PMS system achieved a degradation first-order rate constant of 0.088 m s(-1) (5280 min(-1)), which is 10(4)-10(6) times higher than those of traditional AOP systems. The as-obtained CoFe2O4@g-C3N4 membrane expands a new pathway for membrane-based nanoconfinement catalysis and also provides a promising scheme for water treatment.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Multidisciplinary
Lele Cui, Mingming Sun, Zhenghua Zhang
Summary: This study proposes a tandem system of dual-cathode HEF and UV radiation to overcome the conflict between the optimal potentials of the two targeted reduction reactions in the catalyst-integrated cathode-based heterogeneous electro-Fenton (HEF) process. In the dual-cathode HEF unit, efficient H2O2 production, OH formation, and Fe(iii) electroreduction are achieved by the air-diffusion cathode (ADC) and the FeOCl-functionalized graphite felt (FeOCl/GF) at different operating current densities. The underutilized H2O2 in the HEF effluent is then reactivated in the UV module to eliminate the risk of oxidant residues and improve decontamination efficiency. The proposed HEF/UV tandem strategy offers a promising scheme for distributed wastewater treatment with high process efficiency and a green chemistry concept free from reagents and residual oxidants.
Article
Chemistry, Multidisciplinary
Lele Cui, Bin Chen, Longshun Zhang, Chen He, Chen Shu, Hongyu Kang, Jian Qiu, Wenheng Jing, Kostya (Ken) Ostrikov, Zhenghua Zhang
Summary: This study demonstrates an anti-electrowetting carbon film electrode with self-sustained aeration, which is assembled using structurally discontinuously fractured conventional electrocatalyst films. It achieves highly selective and durable electrochemical two-electron oxygen reduction, providing a promising direction for developing cheap and scalable metal-free electrodes for industry-scale H2O2 electrosynthesis.
ENERGY & ENVIRONMENTAL SCIENCE
(2023)
Article
Engineering, Environmental
Xiaoyu Zhao, Mengyuan Zhang, Zhenghua Zhang
Summary: Carbon dots with ultra-high quantum yield were prepared via a simple one-step microwave-assisted route using citric acid and o-phenylenediamine as precursors. The synthesized carbon dots exhibited strong blue photoluminescence and showed great potential for fluorescent detection of H2O2.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Chemistry, Physical
Bolun Yu, Denan Li, Qianqian Zhu, Shufan Yao, Lifeng Zhang, Yanshuo Li, Zhenxin Zhang
Summary: This study successfully improved the catalytic activity of a zeolitic octahedral metal oxide by incorporating a single zinc species into its micropore. The zinc incorporation achieved a high ethane conversion rate and ethylene selectivity. Mechanism study showed that the isolated zinc site played a crucial role in activating oxygen and ethane, as well as stabilizing intermediates and transition states.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Ruoqi Liu, Hao Fei, Jian Wang, Ting Guo, Fangyang Liu, Zhuangzhi Wu, Dezhi Wang
Summary: This work successfully synthesized a high-performing S-enriched MoS2 catalyst for electrocatalytic nitrogen reduction reaction (NRR), demonstrating high activity and selectivity. The synergistic effect of the 1T phase and bridging S22- species was shown to play a positive role in NRR performances, and DFT calculations revealed the mechanism behind the improved performance.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Pan Xia, Lele Zhao, Xi Chen, Zhihong Ye, Zhihong Zheng, Qiang He, Ignasi Sires
Summary: This study presents a modified gas-diffusion electrode (GDE) for highly efficient and stable H2O2 electrosynthesis by using trace polymethylhydrosiloxane (PMHS). DFT calculations provide an in-depth understanding of the roles of PMHS functional groups.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Kwangchol Ri, Songsik Pak, Dunyu Sun, Qiang Zhong, Shaogui Yang, Songil Sin, Leliang Wu, Yue Sun, Hui Cao, Chunxiao Han, Chenmin Xu, Yazi Liu, Huan He, Shiyin Li, Cheng Sun
Summary: Different B-doped rGO catalysts were synthesized and their 2e- oxygen reduction reaction (ORR) performance was investigated. It was found that the 2e- ORR selectivity of B-doped rGO was influenced by the B content and oxygen mass transfer conditions. The synthesized catalyst exhibited high 2e- ORR selectivity and was capable of degrading organic pollutants continuously.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Li Lv, Lin Lei, Qi-Wen Chen, Cheng-Li Yin, Huiqing Fan, Jian-Ping Zhou
Summary: Monoclinic phase La2Ti2O7 and orthorhombic phase Bi4Ti3O12 are widely used in photocatalysis due to their layered crystal structure. The electronic structures of these phases play a crucial role in their photocatalytic activity. Heat treatment in a nitrogen atmosphere introduces more oxygen vacancies into the S-scheme heterojunction, leading to enhanced NO removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Choe Earn Choong, Minhee Kim, Jun Sup Lim, Young June Hong, Geon Joon Lee, Keun Hwa Chae, In Wook Nah, Yeomin Yoon, Eun Ha Choi, Min Jang
Summary: In this study, the synergistic effect between argon-plasma-system (AP) and catalysts in promoting the production of reactive species for water remediation was investigated. By altering the oxygen vacancies concentration of CeO2/Bi2O3 catalyst, the production of hydrated electrons was stimulated for PFOA removal. The results showed that the built-in electric field in the Bi/Ce0.43 interface enhanced electron migration and eaq- generation, leading to improved PFOA removal efficiency.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yushan Wu, Di Xu, Yanfei Xu, Xin Tian, Mingyue Ding
Summary: Efficient synthesis of primary amines from carbonyl compounds was achieved via reductive amination using Ru@NC-Al2O3 as a catalyst, exhibiting high activity and selectivity under mild conditions.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Yilan Jiang, Peifang Wang, Tingyue Chen, Keyi Gao, Yiran Xiong, Yin Lu, Dionysios D. Dionysiou, Dawei Wang
Summary: By controlling the content of Co and Ni in Co1-xNixFe2O4, the production of O-1(2) from H2O2 can be regulated. NiFe2O4, with the lowest lattice distortion degree, can efficiently produce O-1(2) as the dominant reactive oxygen species. The system also exhibits significant resistance to water matrix interference.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Shuai Feng, Donglian Li, Hao Dong, Song Xie, Yaping Miao, Xuming Zhang, Biao Gao, Paul K. Chu, Xiang Peng
Summary: In this study, MoO2/Mo2N heterostructures were prepared by regulating the coordination of Mo atoms. The electrocatalyst exhibits high current density and excellent stability for hydrogen evolution reaction.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Jia-Cheng E. Yang, Min -Ping Zhu, Daqin Guan, Baoling Yuan, Darren Delai Sun, Chenghua Sun, Ming-Lai Fu
Summary: This study successfully modulated the electron configuration and spin state of millimetric metal catalysts by adjusting the support curvature radius. The electronic structure-oriented spin catalysis was found to affect the degradation of pollutants, providing new insights for the design and production of highly active, reusable, and stable catalysts.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Tao Zhong, Su Tang, Wenbin Huang, Wei Liu, Huinan Zhao, Lingling Hu, Shuanghong Tian, Chun He
Summary: In this study, a highly efficient photocatalyst for the elimination of CH3SH was developed by engineering different crystal facets and coupling them with PHI. Cu (111)/PHI exhibited the highest elimination efficiency and showed good stability and reusability. The enhanced surface electron pump effect and effective adsorption mechanisms were revealed through comprehensive characterizations and DFT calculations.
APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY
(2024)
Article
Chemistry, Physical
Feifei Yang, Tianyu Zhang, Jiankang Zhao, Wei Zhou, Nicole J. Libretto, Jeffrey T. Miller
Summary: A Ni3Sn intermetallic nano particle was found to have geometrically isolated Ni sites that could selectively cleave C-O bonds in biomass derivatives. This nano particle showed high activity and selectivity towards 2-methylfuran, unlike Ni nanoparticles that produced other unwanted products derived from the aromatic rings.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Lulu Qiao, Di Liu, Anquan Zhu, Jinxian Feng, Pengfei Zhou, Chunfa Liu, Kar Wei Ng, Hui Pan
Summary: This study reveals that surface evolution plays a crucial role in enhancing the electrocatalytic performance of transition metal oxides for electrochemical nitrate reduction reaction (e-NO3RR). Incorporating nickel into Co3O4 can promote surface reconstruction and improve the adsorption of intermediates and reduce energy barriers, leading to enhanced catalytic performance. The reconstructed cobalt-nickel hydroxides (CoyNi1_y(OH)2) on the catalyst's surface serve as the active phase.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Xinyu Song, Yang Shi, Zelin Wu, Bingkun Huang, Xinhao Wang, Heng Zhang, Peng Zhou, Wen Liu, Zhicheng Pan, Zhaokun Xiong, Bo Lai
Summary: This study explores the discriminative activities and mechanisms for activation of O-O bond in peroxy compounds via single-atom catalysts (SACs) with higher coordination numbers (M-N5). The atomic catalyst (Fe-SAC) with Fe-N5 as the active center was constructed, effectively activating peroxymonosulfate (PMS), peroxydisulfate (PDS), and hydrogen peroxide (H2O2). The study demonstrates the degradation efficiencies of acyclovir are related to the O-O bond length in different peroxy compounds, and reveals the discriminative mechanisms for activation of O-O bond in different Fenton-like systems.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)
Article
Chemistry, Physical
Yangzhuo He, Hong Qin, Ziwei Wang, Han Wang, Yuan Zhu, Chengyun Zhou, Ying Zeng, Yicheng Li, Piao Xu, Guangming Zeng
Summary: A dual-metal-organic framework (MOF) assisted strategy was proposed to construct a magnetic Fe-Mn oxycarbide anchored on N-doped carbon for peroxymonosulfate (PMS) activation. The FeMn@NC-800 catalyst exhibited superior activity with almost 100% degradation of sulfamethazine (SMZ) in 30 minutes. The study provided insights for the rational design of high-performance heterogeneous catalysts and proposed a novel nonradical-based catalytic oxidation for environmental cleaning.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2024)