Article
Chemistry, Analytical
Vo Thanh Duoc, Chu Manh Hung, Hugo Nguyen, Nguyen Van Duy, Nguyen Van Hieu, Nguyen Duc Hoa
Summary: The grafted structures between SnO2 and ZnO nanowires were achieved through a two-step growth process, showing promising sensitivity for NO2 gas sensing.
SENSORS AND ACTUATORS B-CHEMICAL
(2021)
Article
Chemistry, Multidisciplinary
Jijun Tang, Zhengzhou Duan, Qinyun Xv, Chuwen Li, Guicheng Gao, Weiqi Luo, Dongmei Hou, Yu Zhu
Summary: ZnO@SnO2 composites were synthesized using ZIF-8 as a precursor and ZnO as a carrier. The photocatalytic activity and stability of the ZnO@SnO2 = 2:1 composite were evaluated, showing favorable results. The study provided a reference for heterojunctions with excellent photocatalytic properties.
Article
Environmental Sciences
Karanpal Singh, Nancy, Harpreet Kaur, Pushpender Kumar Sharma, Gurjinder Singh, Jagpreet Singh
Summary: The study synthesized undoped and Cobalt-doped zinc oxide nanoparticles (Co doped ZnO NPs) and confirmed the incorporation of the Co dopant through spectroscopic and microscopic techniques. The Co-doped ZnO NPs showed a red shift in the UV-absorption spectra and a decrease in band gap value, indicating successful integration of Co2+ ions into the ZnO matrix. The synthesized NPs exhibited excellent photocatalytic and antimicrobial activity, with 1% Co-doped ZnO showing the highest photocatalytic efficiency.
Article
Materials Science, Multidisciplinary
Zhouzheng Jin, Jingru Li, Yiming Zhang, Dan Liu, Hui Ding, Bhekie B. Mamba, Alex T. Kuvarega, Jianzhou Gui
Summary: Simultaneously integrating heterogeneous interface, element doping, and metal decorating is an effective strategy for enhancing visible-light-driven photocatalytic activity. In this study, a facile solvothermal route was employed to synthesize Ni-doped BiOBr/Bi-0 with ZnO 3D hierarchical heterojunction (Z@B/Bi-Ni). The optimized Z@B/Bi-Ni photocatalysts exhibited remarkable catalytic performance, outperforming other photocatalysts, towards the degradation of tetracycline solution under visible light. The enhanced photocatalytic mechanism was attributed to the unique morphologies, surface plasmonic resonance effect, and Ni doping in Z@B/Bi-Ni, which were elucidated by a series of experiments, characterization, and DFT calculations. This research provides new insights for the design of hierarchical heterojunction photocatalysts.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2022)
Article
Engineering, Electrical & Electronic
Rewrewa Narzary, Santanu Maity, Partha Pratim Sahu
Summary: This research presents a low-cost fabrication method for ZnO-SnO2 composite semiconductors with varied stoichiometry, achieving excellent crystalline domain and improved photoconversion efficiency of solar cells through nanorods formation. The UV-vis spectroscopy showed high transmittance and bandgap modulation, with a determined power conversion efficiency almost twice that of a single semiconductor-based solar cell.
IEEE TRANSACTIONS ON ELECTRON DEVICES
(2021)
Article
Engineering, Environmental
Tao Ke, Shuyi Shen, Krishnamoorthy Rajavel, Kun Yang, Daohui Lin
Summary: A novel hybrid of nitrogen-doped Ti3C2 nanosheets and TiO2 nanoparticles was developed for efficient photocatalysis. The heterojunction between nitrogen-doped Ti3C2 and TiO2, along with the nitrogen doping, played crucial roles in facilitating electron migration and inhibiting electron-hole pair recombination, resulting in enhanced degradation of methylene blue under UV-light.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
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)
Review
Chemistry, Physical
S. Goktas, A. Goktas
Summary: This study discusses the research progress and application prospects of ZnO-based heterojunction/nanocomposite photocatalysts, exploring methods to enhance photocatalytic activity and presenting a range of developments related to the photocatalytic process. It provides insights into the fundamental principles of efficient ZnO-based photocatalysts and recent efforts in improving their performance for various photodegradation applications, while also offering a brief summary and future outlook on the field.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Yasir, Milan Masar, Tomas Sopik, Hassan Ali, Michal Urbanek, Jan Antos, Michal Machovsky, Ivo Kuritka
Summary: ZnO/WO3/Pt heterojunctions were successfully prepared via a hydrothermal growth method followed by spraying, and their photocatalytic performance was evaluated. The results showed that the samples with different morphologies had high degradation rates for estriol hormone. This study provides a new insight into the remediation of persistent bio toxicants.
Article
Chemistry, Physical
Dandan Peng, Ying Zhang, Xinming Huang
Summary: In this study, a visible-light sensitive heterojunction photocatalyst was designed by coupling N-TiO2 with Mg3Al0.5Cr0.5O4.5 through in situ growth followed by heat treatment. The catalyst showed enhanced photocatalytic activity and recyclability, mainly due to the synergistic effect of N-doping and the construction of a heterojunction.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Engineering, Chemical
Xueqin Yuan, Fei Pei, Xiaolin Luo, Huanting Hu, Huaming Qian, Pin Wen, Kangkang Miao, Sifan Guo, Wei Wang, Guodong Feng
Summary: The fabrication of heterojunction structure, such as ZnO/Au@Cu2O, significantly enhances the photocatalytic degradation efficiency of organic dyes, surpassing other catalysts. The heterostructure not only broadens the visible light absorption range, but also promotes efficient charge separation to generate hydroxyl and superoxide radicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Multidisciplinary
Xiaoqian Ai, Shun Yan, Chao Lin, Kehong Lu, Yujie Chen, Ligang Ma
Summary: CeO2@ZnO nanocomposites were prepared by pyrolyzing Ce@Zn metal-organic frameworks, which showed improved photocatalytic performance due to the formation of a nanoheterojunction structure. The effects of the Zn:Ce ratio on the microstructure, morphology, and optical properties of the nanocomposites were studied. The prepared photocatalysts exhibited higher photocatalytic activity than previously reported CeO2@ZnO nanocomposites, suggesting their potential in environmental remediation.
Article
Chemistry, Multidisciplinary
N. A. Chopan, H. -T. -N. Chishti
Summary: Polypyrrole (PPy) and graphitic carbon nitride (g-C3N4) nanoparticles were added to ZnO nanorods to form a g-C3N4/PPy/ZnO (GPZ) photocatalytic system, resulting in improved charge-carrier transmission and separation. The GPZ photocatalyst exhibited outstanding photocatalytic activity, effectively degrading 99.0% of RhB within 60 minutes. The GPZ heterostructure also demonstrated superior antibacterial activity compared to other samples and excellent stability after multiple cycles.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Guo-Yi Li, Hong-Di Zhang, Zhao-Jian Li, Hong Gao, Nan Wang, Ru Li, Yun-Ze Long
Summary: ZnO/NiO heterojunction nanofibrous membranes with different Zn/Ni molar ratios were prepared via electrospinning and their photocatalytic degradation of Congo red and antibacterial effects were studied. The results demonstrated the potential applications of these nanofibrous membranes in wastewater remediation.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Multidisciplinary
Xiaoxia Ou, Pu Chen, Ke Zhao, Cunjie Xia
Summary: A novel ternary photocatalyst with a Z-scheme heterojunction was successfully synthesized by depositing Ag nanoparticles onto the surface of a ZnO/g-C3N4 composite. The as-synthesized photocatalysts exhibited significantly enhanced photodegradation efficiency for norfloxacin and rhodamine B under visible light irradiation, attributed to the widened range of visible light response and the efficient separation and migration of carriers facilitated by the introduction of Ag nanoparticles.
Article
Engineering, Environmental
Wen He, Changjiu Li, Beibei Zhao, Xudong Zhang, Kwan San Hui, Jiefang Zhu
Summary: The new hybrid electrode designed in this study combines different energy storage mechanisms to enhance energy and power densities. The unique structure and optimized properties of each component and nanostructure result in synergistic effects, leading to high-performance mixed-ion batteries.
CHEMICAL ENGINEERING JOURNAL
(2021)
Review
Biochemistry & Molecular Biology
Shan Liu, Xing-Xiang Ji, Jie-Fang Zhu
Summary: The study summarizes the current progress in natural biopolymer-based composites in three common classes - alginate, chitosan, and gelatin, analyzing their morphology characteristics, preparation methods, and unique functionalities. Ultimately, the article provides an overview of recent advancements in biomedical applications such as tissue engineering, wound-healing, and drug delivery.
CURRENT MEDICINAL CHEMISTRY
(2021)
Article
Engineering, Environmental
Dan Li, Ziye Kang, Hao Sun, Ying Wang, Haiming Xie, Jia Liu, Jiefang Zhu
Summary: The novel MnxCo3-xO4-decorated separator significantly improves the cycling stability and low charge potential of Li-O-2 batteries, effectively suppressing the redox shuttling phenomenon. The contributions of LiI to battery performance and the operation mechanism were systematically investigated.
CHEMICAL ENGINEERING JOURNAL
(2022)
Article
Chemistry, Physical
Yongfeng Lu, Wensong Wang, Hongrui Cheng, Haijiang Qiu, Wenhao Sun, Xiao Fang, Jiefang Zhu, Yuanhui Zheng
Summary: Crystalline graphitic carbon nitride is a promising photocatalyst for hydrogen production. Loading bamboo charcoal onto carbon nitride can improve the specific surface area and visible-light photocatalytic hydrogen production activity, facilitating the separation of electron-hole pairs. This study highlights the influence of carbonaceous material loading on the photocatalytic activity and presents a strategy to design efficient loaded photocatalysts using natural abundant materials.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Review
Energy & Fuels
Jiayin Zhang, Lu Zheng, Yongde Ma, Zhenping Cai, Yanning Cao, Kuan Huang, Lilong Jiang
Summary: NH3 is a future energy carrier due to its high hydrogen content, and efficient separation of NH3 is crucial for its application. Various technologies, such as physical condensation, liquid absorption, solid adsorption, and membrane separation, have been developed for NH3 separation. However, a comprehensive review of NH3 separation technologies is still lacking. This mini-review provides a summary of recent advances in NH3 separation technologies and discusses future directions for development.
Article
Energy & Fuels
Yi Zhao, Xiao Fang, Lu Chen, Jiefang Zhu, Yuanhui Zheng
Summary: A PANI/NCPP/CdS hybrid photocatalyst was reported in this study, which showed improved efficiency in photocatalytic hydrogen production through the formation of heterojunction, facilitating charge separation and transfer, as well as increasing the concentration of H+ on the catalyst surface through the formation of protonated amine groups on PANI.
Article
Nanoscience & Nanotechnology
Xiao Fang, Yongfeng Lu, Xin Chen, Hongrui Cheng, Haijiang Qiu, Yuanhui Zheng, Jiefang Zhu
Summary: Labels based on photochromic PUFs have been developed as low-cost, easily manufactured, and easily authenticated anticounterfeiting strategies. The color of the PVAc/HCCN films and the pattern of randomly distributed HCCN particles were used for two-layer security authentication. PUFs can be read and verified using a smartphone and computer vision technology.
ACS APPLIED NANO MATERIALS
(2022)
Article
Chemistry, Physical
Xiaohai Zheng, Panjie Yu, Yaxin Liu, Yongde Ma, Yanning Cao, Zhenping Cai, Linsen Zhou, Kuan Huang, Shoutian Zheng, Lilong Jiang
Summary: This study systematically investigated the hydrogenation of methyl palmitate (MP) to hexadecanol over defect-rich Cu/m-ZrO2 catalysts. It was found that Cu/m-ZrO2-350 catalyst exhibited the best activity for MP hydrogenation due to its highest Cu dispersion, largest number of Cu0 sites, and surface oxygen vacancy concentration. The synergistic effect of Cu species and oxygen vacancies provides insights for the design of efficient catalysts for the conversion of fatty esters to fatty alcohols.
Article
Engineering, Environmental
Wenhao Sun, Hongrui Cheng, Jing Zhang, Xiao Fang, Wenkai Chen, Jiefang Zhu, Yuanhui Zheng
Summary: This paper reports the first efficient allochroic Pt/g-C3N4 photocatalyst, which can form an ohmic contact through the photoconversion of semiconducting g-C3N4 to metalloid, accompanied by charge carrier storage and photocatalyst color change. The photocatalyst shows the highest hydrogen evolution performances by intermittently exposing it to air for a few minutes during photocatalysis.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Jiayin Zhang, Yanning Cao, Fengyun Ding, Lu Zheng, Yongde Ma, Zhenping Cai, Linsen Zhou, Kuan Huang, Lilong Jiang
Summary: In this study, few-layered hexagonal boron nitrides (h-BNs) were synthesized and proposed as a solid adsorbent for NH3 separation. The h-BNs showed moderate interactions with NH3, high selectivity towards NH3 over other gases, and good stability, making it a promising adsorbent for industrial applications.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Xiaohai Zheng, Bang Li, Lijuan Shen, Yanning Cao, Yingying Zhan, Shoutian Zheng, Shiping Wang, Lilong Jiang
Summary: Fe-doped LaCoO3 perovskite catalysts synthesized via a citric acid-assisted sol-gel route showed enhanced catalytic activity for H2S selective oxidation. The Fe substitution improved the formation of oxygen vacancies and enhanced the adsorption of H2S. The reaction pathway of H2S selective oxidation over LaFexCo1_ xO3 perovskites was found to follow the Mars-van Krevelen mechanism. These findings provide new insights for the design of efficient perovskite catalysts for the selective oxidation of H2S.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2023)
Article
Engineering, Environmental
Wenbiao Liang, Feng Jin, Yin Zhao, Liyi Shi, Quan Liu, Zhuyi Wang, Yi Wang, Meihong Zhang, Jiefang Zhu, Shuai Yuan
Summary: The single-crystal LiNi0.8Mn0.1Co0.1O2 (SC-NCM811) cathode with electro-chemo-mechanically compliant microstructure was successfully synthesized by microfluidic technology combined with the solid-state lithiation process. The optimized SC-NCM811 cathode has a small grain size, low cation mixing, and well layered structure, showing good electrochemical performance. Microfluidic technology is expected to provide a new strategy for preparing single-crystal Ni-rich cathode materials, which may extend to the commercial application of other cathode materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Engineering, Chemical
Yongde Ma, Wenquan Wu, Jiayin Zhang, Hongwei Zhang, Zhenping Cai, Yanning Cao, Kuan Huang, Lilong Jiang
Summary: In this study, an oil-soluble ionic liquid (IL) was combined with mixed metal oxide to generate bifunctional catalysts for slurry-phase heavy oil hydrocracking. The addition of SiO2-ZrO2 significantly improved the conversion of residue to distillate, as well as the gas and coke yields. The resulting catalysts exhibited highly dispersed sulfurized MoS2 slabs and abundant acidic sites.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
(2023)
Article
Chemistry, Physical
Zhenping Cai, Yongxin Ding, Jiayin Zhang, Panjie Yu, Yongde Ma, Yanning Cao, Ying Zheng, Kuan Huang, Lilong Jiang
Summary: In this study, oil-soluble Mo-based ionic liquids were used as precursors to produce MoS2 catalysts for the hydroconversion of biolipids. The in situ generated MoS2 catalysts showed excellent activity in converting methyl palmitate and hexadecane to biodiesel. The structures of the catalysts were characterized, and the hydroconversion kinetics and pathways were analyzed. High conversions of feeds and selectivities of HDO products were achieved in the hydroconversion of methyl palmitate and palm oil under solvent-free condition.
JOURNAL OF CATALYSIS
(2023)
Article
Green & Sustainable Science & Technology
W. Sun, Y. Zheng, J. Zhu
Summary: Photocatalytic hydrogen production and selective organic synthesis offer environmentally friendly strategies for solar fuel generation and high-value organic products. Combining these two types of reactions in a single photocatalytic system can enhance their efficiencies. This review discusses the fundamental principles, emerging materials, potential reaction mechanisms, and future development in this field, providing guidance for the rational design of photocatalysts with dual-functional reaction capability.
MATERIALS TODAY SUSTAINABILITY
(2023)
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)
