Article
Spectroscopy
Xiaoling Xu, Xiaoxi Xu, Tianqi Wang, Mengxiao Xu, Xianglu Yang, Junwei Hou, Dandan Cao, Qingyao Wang
Summary: The ternary CdS/Ag/TiO2 NTs photocatalysts with indirect Z-scheme heterojunctions were successfully synthesized and demonstrated great performance in the photodegradation and hydrogen production. The extended light absorption range and enhanced photoelectron transportation efficiency of the ternary catalyst were observed compared to the binary heterojunction counterpart. This work provides practical guidance for designing high-efficient photocatalysts with Z-scheme heterojunctions for solar energy development, pollutant remediation, and photoelectric conversion.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2022)
Article
Chemistry, Inorganic & Nuclear
Shuang Wang, Mengjie Yao, Yuye Cheng, Kai Ding, Minghao Dou, Hongyu Shao, Shuaitong Xue, Shenjie Li, Yanyan Chen
Summary: The direct Z-scheme heterostructure is considered the most potential structure for yielding photo-electric response due to its spatial separation of active sites and high oxidative and reducing capacity. However, challenges exist in the charge transfer between two semiconductors in direct Z-scheme structures. In this study, a direct Z-scheme ZnxCd1-xS@ZnS-NiS heterostructure was obtained by introducing V-zn defect and p-n junction, which resulted in staggered band edge alignment and improved photocatalytic hydrogen precipitation activity.
DALTON TRANSACTIONS
(2023)
Article
Chemistry, Inorganic & Nuclear
Ziyi Yao, Junli Nie, Qadeer Ul Hassan, Guian Li, Jiabin Liao, Weibin Zhang, Lujun Zhu, Xianjin Shi, Fei Rao, Jun Chang, Yu Huang, Gangqiang Zhu
Summary: A novel Z-scheme Bi5O7-delta I/CeO2-delta heterojunction photocatalyst with excellent photocatalytic performance for NO removal under visible light irradiation was prepared by hydrothermal synthesis and thermal treatment methods.
INORGANIC CHEMISTRY FRONTIERS
(2022)
Article
Engineering, Environmental
Zhen Li, Fei Huang, Yifeng Xu, Aihua Yan, Haiming Dong, Xin Xiong, Xianhui Zhao
Summary: By integrating an artificial Z-scheme structure and Ohmic contact, this study has successfully formed a ternary-component system, leading to increased utilization of photogenerated electrons, inhibition of carrier recombination, and prolonged lifetime of photogenerated electrons.
CHEMICAL ENGINEERING JOURNAL
(2022)
Review
Chemistry, Physical
Dong Liu, Shengtao Chen, Renjie Li, Tianyou Peng
Summary: This review summarizes the progress and advantages of Z-scheme heterojunction photocatalysts, highlights the applications of various types of Z-scheme nanostructured materials in photocatalytic energy conversion, and discusses different strategies for enhancing the photocatalytic efficiency.
ACTA PHYSICO-CHIMICA SINICA
(2021)
Article
Chemistry, Multidisciplinary
Pooja J. Ayare, Noelle Watson, Maizie R. Helton, Matthew J. Warner, Tristan Dilbeck, Kenneth Hanson, Aaron K. Vannucci
Summary: This research demonstrates the photocatalytic synthesis of H2 using a multiphoton mechanism, where both a molecular photocatalyst and a substituted naphthol are excited in the presence of a sacrificial electron donor and proton source. The unique use of a naphthol molecule as both a light absorber and H2 producing catalyst offers a new paradigm for the production of solar fuels in uphill reactions.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Xiaohan Zhao, Yue Xu, Xiaohong Wang, Qian Liang, Man Zhou, Song Xu, Zhongyu Li
Summary: Novel ZnCdS/Bi2WO6 composites exhibit highly efficient photodegradation of malachite green under visible light and excellent stability, mainly due to their Z-scheme heterostructure. Free radical capture experiments confirm the crucial roles of hydroxyl radicals and superoxide ion radicals in the reaction process. A proposed photocatalytic mechanism provides insight into the enhanced photocatalytic activity of the composites.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2021)
Article
Chemistry, Physical
Dashi Lei, Juanqin Xue, Xiangyu Peng, Shuhao Li, Qiang Bi, Changbin Tang, Liang Zhang, Jing Zhang
Summary: The rapid and effective treatment of As(III) wastewater was achieved by a Z-Scheme photocatalyst activated through PMS. Fe atoms and Ag nanoparticles played crucial roles in As(III) adsorption and PMS activation. The dual active sites on the photocatalyst effectively facilitated the fast oxidation of As(III).
APPLIED SURFACE SCIENCE
(2021)
Review
Chemistry, Multidisciplinary
Linxi Wang, Chuanbiao Bie, Jiaguo Yu
Summary: This study analyzes the challenges of photocatalytic mechanisms in liquid-phase and all-solid-state Z-scheme systems from various perspectives, including thermodynamics, charge-transfer dynamics, applicability, and practical synthesis. It highlights the challenges for electron transfer in liquid-phase Z-scheme systems, where the dynamic motion of photocatalyst nanoparticles and redox couples, as well as the prohibition of transferring free electrons via water media, ultimately led to the flourishing of step-scheme heterojunctions.
TRENDS IN CHEMISTRY
(2022)
Article
Engineering, Chemical
Fei Chang, Shanshan Zhao, Yibo Lei, Shijie Peng, Deng-guo Liu, Yuan Kong
Summary: In this study, alpha-MnS was used to modify Bi4O5Br2 to produce Bi4O5Br2/alpha-MnS (BMS) composites through a mechanical ball-milling method. The composites were characterized and confirmed to have integrated heterojunction structures. The composites BMS showed significantly improved photocatalytic degradation efficiency for bisphenol A (BPA) under visible light, with BMS0.05 exhibiting the highest catalytic outcome. The enhanced performance was attributed to increased visible-light absorption, suitable phase composition, and improved generation of reactive radicals.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Chemistry, Physical
Jingwen Wei, Shiming Zhang, Jiangli Sun, Ting Liang, Zuji Li, Zhihong Li, Xiaoling Yi, Ruting Xiong, Jieying Deng, Zebin Yu, Shuangfei Wang, Yanping Hou
Summary: In this study, Z-scheme CoAl-layered double hydroxide/indium vanadate heterojunction photocatalysts were synthesized and their performance in CO2 reduction was investigated. The results showed that the synthesized photocatalysts exhibited desired morphology, efficient charge separation and transfer, and the highest photocurrent response. The CoAl-LDH/InVO4-30 showed the highest CO yield within 2 hours of reaction, with nearly 100% selectivity. The intermediates and possible reduction pathways during the CO2 reduction process were also identified.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
G. Venkatesh, N. Elavarasan, M. Srinivasan, G. Palanisamy, Romulo R. Macadangdang, S. Vignesh, P. Ramasamy, H. Elhosiny Ali, Mohd Shkir, Zubair Ahmad
Summary: In this work, a novel ZnSnO3/rGO/MoS2 nanocomposite was prepared and its photocatalytic performances were investigated. The ZSGM nanocomposite exhibited high photocatalytic activity for the degradation of dye pollutants under UV-visible light illumination, with the highest removal rate achieved for Rh B degradation.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Green & Sustainable Science & Technology
Huajing Gao, Jagadeesha Angadi, Shifa Wang, Xianju Zhou, Hua Yang, Abdullah M. Al-Enizi, Mohd Ubaidullah, Bidhan Pandit, Dengfeng Li, Manish Gupta
Summary: A simple solution combustion method is used to synthesize spinel type MgFe2O4 and CoCr2O4 oxides, and an MFO/wt%CCO heterojunction is constructed using mechanical mixing method. The heterojunction effectively degrades tetracycline hydrochloride under simulated sunlight irradiation. Various characterization techniques are employed to confirm the properties and activity of the heterojunction.
ADVANCED SUSTAINABLE SYSTEMS
(2023)
Article
Chemistry, Physical
Wang Cao, Caiyun Jiang, Chen Chen, HaiFei Zhou, Yuping Wang
Summary: The Z-scheme CdS/Bi4O5Br2 heterostructure was successfully synthesized and its construction was verified through various tests. The heterojunction interface formed by CdS nanospheres on Bi4O5Br2 nanosheets improved the transfer of photogenerated electron-hole pairs, enhancing the photocatalytic performance.
JOURNAL OF ALLOYS AND COMPOUNDS
(2021)
Article
Environmental Sciences
Mahalakshmi Krishnasamy, Ranjith Rajendran, Shanmugam Vignesh, Priyadharsan Arumugam, Barathi Diravidamani, Mohd Shkir, Hamed Algarni
Summary: Among different types of semiconductor photocatalysts, MoS2 hybridized with graphitic carbon heterojunction has shown great potential due to its static chemical properties, suitable band structure, and easy synthesis. The study revealed the physiochemical and surface characterizations of the hybridized heterojunction nanocomposite, with diffused reflectance spectroscopy showing the tailored energy band gap. The efficient electron/hole pair separation, increase in redox species, and utilization of solar range led to greater degradation efficacy of g-C3N4/MoS2 heterojunction.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Article
Chemistry, Physical
Sang Won Lee, Sang-Hoon Kim, Wan-Kuen Jo, Won-Hwa Hong, Woong Kim, Byoung Gi Moon, Sung Hyuk Park
JOURNAL OF ALLOYS AND COMPOUNDS
(2019)
Article
Materials Science, Multidisciplinary
Perumal Devaraji, Wan-Kuen Jo
MATERIALS RESEARCH BULLETIN
(2019)
Article
Chemistry, Physical
Jong Uk Choi, Yeong Gyeong Kim, Wan-Kuen Jo
APPLIED SURFACE SCIENCE
(2019)
Article
Chemistry, Physical
Jong Uk Choi, Wan-Kuen Jo
APPLIED SURFACE SCIENCE
(2019)
Article
Engineering, Multidisciplinary
Wan-Kuen Jo, Santosh Kumar, Surendar Tonda
COMPOSITES PART B-ENGINEERING
(2019)
Article
Materials Science, Multidisciplinary
Mi Gyeong Kim, Wan-Kuen Jo
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2020)
Article
Chemistry, Physical
Wan-Kuen Jo, Satyanarayana Moru, Surendar Tonda
APPLIED SURFACE SCIENCE
(2020)
Article
Chemistry, Physical
Dong-Eun Lee, Dong Jin Kim, Satyanarayana Moru, Mi Gyeong Kim, Wan-Kuen Jo, Surendar Tonda
Summary: A hybrid catalyst composed of TOH and CD, referred to as CD/TOH, has been developed for photocatalytic CO2 reduction to produce CH4, demonstrating excellent catalytic properties for the reaction.
APPLIED SURFACE SCIENCE
(2021)
Article
Chemistry, Physical
Dong-Eun Lee, Dong Jin Kim, Vidyasagar Devthade, Wan-Kuen Jo, Surendar Tonda
Summary: This study demonstrates the integration of sub-nanometer Pt nanoclusters (Pt NCs) on the surface of a commercial catalyst to achieve exceptional CO2 photoreduction activity and high selectivity for CH4 production. The catalyst exhibits a higher proportion of edge and corner sites, which have a strong affinity for CO molecules.
APPLIED SURFACE SCIENCE
(2022)
Article
Chemistry, Physical
Toshali Bhoyar, Dong Jin Kim, B. Moses Abraham, Surendar Tonda, Nilesh R. Manwar, Devthade Vidyasagar, Suresh S. Umare
Summary: The study demonstrates that molecular doping with 2,3-diaminopyridine (DAP) can effectively enhance the photocatalytic hydrogen production activity of polymeric carbon nitride (PCN) and form a D-pi-A type network. DAP-doped PCN exhibits rapid charge carrier separation and extended light-harvesting ability, with theoretical analysis showing near-ideal hydrogen production performance.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Multidisciplinary Sciences
Toshali Bhoyar, Dong Jin Kim, B. Moses Abraham, Akanksha Gupta, Nagesh Maile, Nilesh R. Manwar, Surendar Tonda, Devthade Vidyasagar, Suresh S. Umare
Summary: This study demonstrates a sustainable strategy for the regeneration of NAD(+) as an electron carrier via photon-assisted heterogeneous catalysis. The use of NPCN as a photocatalyst shows excellent photooxidation efficiency of NADH and high hydrogen production rate, outperforming other metal-free photocatalysts.
Article
Chemistry, Applied
Kamakshaiah Charyulu Devarayapalli, S. V. Prabhakar Vattikuti, Dong Jin Kim, Youngsu Lim, Bolam Kim, Gyuhyeon Kim, Dae Sung Lee
Summary: Solar-driven photocatalytic CO2 reduction using Pt quantum dots (PtQDs) with TiO2 nanowire (TiO2NW)/Ti3C2 MXene heterostructures (Pt-TiO2NW/Ti3C2) shows promise in solving the energy crisis. The PtQDs act as electron conduction bridges, enhancing the separation efficiency of electrons and holes and improving CO2 reduction under simulated solar light. The Pt-TiO2NW/Ti3C2 heterostructures exhibit high production rates of carbon monoxide (CO) and methane (CH4) and show significant stability even after five cycles.
JOURNAL OF ENERGY CHEMISTRY
(2023)
Article
Chemistry, Physical
Wan-Kuen Jo, Satyanarayana Moru, Surendar Tonda
JOURNAL OF MATERIALS CHEMISTRY A
(2020)
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)