Article
Engineering, Electrical & Electronic
Prashant H. Shinde, Yogita Padwal, Yogesh Waghadkar, Hassan Fouad, Chiaki Terashima, Ratna Chauhan, Shrikant Charhate, Muthupandian Ashokkumar, Suresh W. Gosavi, Dattatray J. Late
Summary: We have successfully synthesized ZnS-MoS2 nano-heterostructure via hydrothermal method and studied its photocatalytic activity under sunlight. The nano-heterostructure exhibited efficient charge separation and extended light absorption, leading to the generation of electron-hole pairs for the degradation of MB dye molecules. The optimized ZnS-MoS2 sample synthesized at 48 h showed excellent performance with 97% degradation in 30 min, attributed to enhanced crystallinity, good charge carrier ability, optimal heterojunction formation, and well-defined morphology with reduced defects.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
Sanmei Liu, Yanping Yang, Weiming Xiao, Siyao Xia, Caiju Jin, Wen Wang, Shengchen Li, Minli Zhong, Shuhua Wang, Chao Chen
Summary: Photocatalytic technology is an effective method for addressing energy and environmental issues. The study successfully prepared a visible light responsive photocatalyst by introducing metal-organic frameworks (MOFs) and forming a porous structure with an intimate interface between MoS2 and CdS. This unique structure greatly enhances charge separation and transfer, resulting in excellent performance for hydrogen evolution and the degradation of organic pollutants. The photocatalyst also exhibits good stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Chemistry, Physical
Nan Wang, Dongxu Wang, Aiping Wu, Siyu Wang, Zhihui Li, Chengxu Jin, Youming Dong, Fanyi Kong, Chungui Tian, Honggang Fu
Summary: The study reported a highly efficient Pt-free photocatalytic hydrogen evolution system by combining PCN nanosheets with MoS2, which can significantly enhance the photocatalytic performance.
Article
Chemistry, Physical
Nan Wang, Dongxu Wang, Aiping Wu, Siyu Wang, Zhihui Li, Chengxu Jin, Youming Dong, Fanyi Kong, Chungui Tian, Honggang Fu
Summary: This study reports the design of a highly efficient Pt-free photocatalytic hydrogen evolution system by intimately combining two-dimensional porous C3N4 nanosheets with few-layered MoS2. The porous structure and two-dimensional structure are advantageous for promoting photocatalytic ability, and the edge active sites of few-layered MoS2 and its intimate connection with porous C3N4 facilitate the transfer and separation of electrons.
Article
Chemistry, Multidisciplinary
Jianfang Jing, Jun Yang, Wenlu Li, Zhaohui Wu, Yongfa Zhu
Summary: The dual-porphyrin heterostructure achieves efficient photocatalytic hydrogen evolution with superior activity and efficient charge separation and transfer, while reducing carrier recombination. This is mainly attributed to the giant interfacial electric field formed between dual porphyrins, providing a fresh insight into improving photocatalytic performance through interfacial electric field construction.
ADVANCED MATERIALS
(2022)
Article
Chemistry, Physical
Yilei He, Lijuan Zhang, Yanze Wei, Xing Zhang, Zumin Wang, Ranbo Yu
Summary: The nano-heterostructured combination of SrTiO3 and TiO2, with optimized interface achieved through bandgap engineering, demonstrates high efficiency in separating charge carriers, leading to exceptional photocatalytic performance for H-2 production.
Article
Materials Science, Ceramics
Qing Yang, Yunfeng Li, Zhiling Xia, Wei Chang, Yan Xing
Summary: Efficient nitride photocatalysts have attracted much attention, and this study successfully synthesized two-dimensional mesoporous Ta3N5 as a promising candidate. The use of a biological template and vacuum nitriding reactions allowed the incorporation of nitrogen vacancies, optimizing the band structure and enhancing the photocatalytic performance. This work provides a new perspective for the preparation of two-dimensional nitride materials with improved photocatalytic activity.
CERAMICS INTERNATIONAL
(2022)
Article
Chemistry, Multidisciplinary
Xuefeng Pan, Radwan M. Sarhan, Zdravko Kochovski, Guosong Chen, Andreas Taubert, Shilin Mei, Yan Lu
Summary: This study develops a novel approach to fast degradation of 4-nitrophenol using porous MoS2 nanoparticles as catalysts, integrating their intrinsic catalytic property with photothermal conversion capability. The open porous architecture and light-to-heat conversion performance of the MoS2 particles contribute to the catalytic enhancement. This research provides new opportunities for efficient photothermal-assisted catalysis.
Article
Chemistry, Physical
Boyuan Chen, Jiheng Wang, Siqi He, Yao Shen, Shuchen Huang, Hu Zhou
Summary: Modulation of electronic structure via heterointerface engineering is an appealing strategy to promote the hydrogen evolution reaction (HER) performance of a pH-universal electrocatalyst. In this study, a CoS2-MoS2 heterostructure with plentiful heterogeneous nanointerfaces is synthesized and exhibits superb catalytic activity and long-durability towards HER in both acidic and alkaline solutions. The synergistic modulation of electronic and geometric structures accounts for the excellent performance of CoS2-MoS2. This work provides an exciting avenue for fabricating efficient wide-pH electrocatalysts through an interface-induced strategy.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Rui-Qing Li, Changming Wang, Shuixiang Xie, Tianyu Hang, Xiaoyu Wan, Jinjue Zeng, Wei Zhang
Summary: In this study, an efficient MoS2 nanosheet electrode coupled with CeO2 was developed via a hydrothermal process to facilitate water adsorption and dissociation. The electrode displayed good HER activity and stability at a large current density of 500 mA cm(-2). In situ Raman spectroscopy confirmed the formation of hydroxide ions based on the strengthening of the Ce-O bond during the HER.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Chaohai Pang, Xionghui Ma, Yuwei Wu, Shuhuai Li, Zhi Xu, Mingyue Wang, Xiaojing Zhu
Summary: In this study, a flower-like Co9S8@MoS2 heterostructure with bifunctional activity was synthesized using a one-pot approach. The catalyst exhibited low overpotentials and good durability, making it suitable for electrochemical water splitting to produce hydrogen fuel.
Article
Chemistry, Physical
Qianlong Yang, Lianqing Yu, Xingyu Zhao, Yankun Wang, Haifeng Zhu, Yaping Zhang
Summary: An efficient gamma-NiOOH/ZnCdS photocatalyst with high hydrogen evolution activity and stable visible-light-driven performance was prepared by in-situ hydrothermal method. The gamma-NiOOH nanosheets distribute on the ZnCdS nanosphere surface, accelerating holes transfer and improving catalysis activity and photo-stability.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
Article
Engineering, Environmental
Fan Zhang, Xuegong Yu, Jiajun Hu, Lecheng Lei, Yi He, Xingwang Zhang
Summary: In this study, a Ru-MoS2 heterostructured catalyst was designed to address the challenges of low charge-separation efficiency and catalytic hydrogen evolution activity in photoelectrochemical water splitting for hydrogen evolution reaction. The engineered electronic structure of Ru-MoS2 significantly decreased charge transfer resistance and optimized electron transportation and Gibbs free energy of hydrogen adsorption, leading to enhanced catalytic HER efficiency. The n+p-Si/Ti/Ru-MoS2 photocathode demonstrated the largest reported photocurrent density for Si-based photocathodes and achieved a high solar-to-hydrogen conversion efficiency.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Applied
Mengyu Zhao, Sen Liu, Daimei Chen, Sushu Zhang, Sonia A. C. Carabineiro, Kangle Lv
Summary: In-plane epitaxial growth of ZnIn2S4 nanosheets on the surface of hexagonal phase WO3 nanorods was achieved, forming a unique 3D heterostructure. The heterostructure not only enlarged the specific surface area, but also improved the light harvesting ability, resulting in significantly enhanced photocatalytic hydrogen evolution.
CHINESE JOURNAL OF CATALYSIS
(2022)
Article
Energy & Fuels
Min Wei, Dandan Zhang, Lixia Wang, Xin Xiao, Shun Wang, Meirong Song, Shiju Zhao, Xiaoxia Wu
Summary: This study synthesized an optimized heterojunction catalyst with a core-shell structure and an amorphous-crystalline heterostructure, exhibiting excellent performance and long-term stability in water electrolysis.
Article
Chemistry, Physical
Hengming Huang, Chen Xue, Zhenggang Fang, Zhiliang Wang, Bin Luo, Menglong Sun, Ling Zhou, Kan Hu, Jiahui Kou, Lianzhou Wang, Chunhua Lu
Summary: The development of low-cost and high-active cocatalysts is crucial for photocatalytic water splitting. In this study, a novel strategy of electron delocalization modulation for transition metal sulfides was developed by anion hybridization. The CdS/CoS2 divide P catalyst showed significantly higher HER rate for solar H-2 evolution reaction compared to other catalysts tested.
Article
Chemistry, Multidisciplinary
Zihao Chen, Ben Chong, Nathan Wells, Guidong Yang, Lianzhou Wang
Summary: This study achieves efficient photogenerated carrier separation by adjusting the electronic structure of graphitic carbon nitride (g-C3N4) photocatalyst through pi-pi conjugation. A coplanar heterojunction is created by doping crystalline g-C3N4 with a conjugated double bond ring molecule, resulting in the retention of the g-C3N4 network structure and enhanced separation and transfer of photogenerated carriers. The new g-C3N4 photocatalyst demonstrates high hydrogen production efficiency under visible light irradiation.
CHINESE CHEMICAL LETTERS
(2022)
Article
Chemistry, Physical
Mu Xiao, Yalong Jiao, Bin Luo, Songcan Wang, Peng Chen, Miaoqiang Lyu, Aijun Du, Lianzhou Wang
Summary: Coupling graphitic carbon nitride (CN) with carbonaceous materials enhances photocatalytic performance by improving exciton dissociation and charge transfer. The enhanced light absorption from carbon has little contribution to H-2 evolution activity.
Article
Chemistry, Multidisciplinary
Xiyue Peng, Yuan Xie, Ardeshir Baktash, Jiayong Tang, Tongen Lin, Xia Huang, Yuxiang Hu, Zhongfan Jia, Debra J. Searles, Yusuke Yamauchi, Lianzhou Wang, Bin Luo
Summary: The development of cost-effective and long-life rechargeable aluminium ion batteries with a new cathode material has promising prospects for sustainable energy storage applications. By using a low-cost AlCl3/urea electrolyte, a heteroatom pi-conjugated polymer featuring synergistic C=O and C=N active centres is reported to show high discharge capacity and long cycle life, outperforming most Al-organic batteries reported to date.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Multidisciplinary
Xiangqian Fan, Zhiliang Wang, Tongen Lin, Du Du, Mu Xiao, Peng Chen, Sabiha Akter Monny, Hengming Huang, Miaoqiang Lyu, Mingyuan Lu, Lianzhou Wang
Summary: Constructing an intimate film/substrate interface is crucial for achieving efficient photoelectrochemical performance. Inspired by coordination chemistry, a polymeric carbon nitride film is grown on a Ti-coated substrate, leading to reduced interfacial resistance and ultralow onset potential. The PCN photoanode exhibits good photocurrent density and stability for water splitting without external bias.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2022)
Article
Chemistry, Physical
Yang Gao, Debin Kong, Fengli Cao, Shuai Teng, Tao Liang, Bin Luo, Bin Wang, Quan-Hong Yang, Linjie Zhi
Summary: This study reports the design and tailoring of carbon-based catalysts for efficient oxygen evolution and reduction reactions. By tuning the structural features of the catalysts, a high bifunctional electrocatalytic activity is achieved, surpassing noble metals-based catalysts. Theoretical simulations reveal the enhancement mechanism of catalytic activity.
Article
Chemistry, Multidisciplinary
Xiaoxiong Huang, Shengli Wu, Zhichang Xiao, Debin Konga, Tao Liang, Xianglong Li, Bin Luo, Bin Wang, Linjie Zhi
Summary: This study investigates carbon-based catalysts for the oxidative dehydrogenation of ethanol to acetaldehyde and reveals the roles of different functional groups in the catalytic process. A quantitative map is provided to predict the ideal catalyst structure, and the catalyst shows superior performance compared to reported carbon-catalysts. The study also identifies the ideal balance of surface pyridinic-N/graphitic-N and C-O/C]O in carbon catalysts.
Article
Chemistry, Multidisciplinary
Xiaohui Xu, Yang Gao, Qi Yang, Tao Liang, Bin Luo, Debin Kong, Xianglong Li, Linjie Zhi, Bin Wang
Summary: In this study, researchers introduced chemical groups with different electron-withdrawing abilities into oxidized carbon catalysts as additional regulation factors, aiming to break the catalytic limit. Results showed that the catalytic activity was positively associated with the electron-withdrawing ability of the additional groups. The well-tailored COF-CN achieved an ultrahigh H2O2 selectivity and yield, allowing it to be directly used for wood pulping and waste paper recycling. This additional chemical influence design has universal potential beyond the current electrocatalytic limit.
Article
Nanoscience & Nanotechnology
Bo Zhang, Eli Martel, Zhenyu Wang, Jinying Zhang, Thomas Szkopek
Summary: This study reports the optical transmission spectroscopy and photoconductivity measurements of exfoliated flakes of violet phosphorus. It is found that violet phosphorus shows high photoconductive responsivity and optical transmission properties that are in agreement with theoretical calculations. Additionally, it is observed that violet phosphorus is sensitive to oxidation and requires protection in an inert gas environment.
Article
Multidisciplinary Sciences
Xiaoxiong Huang, Debin Kong, Yingjie Ma, Bin Luo, Bin Wang, Linjie Zhi
Summary: The article proposes an internally self-feeding mechanism that relies on the orientation of mass transfer in a hierarchical structure and demonstrates it using a one-dimensional tandem core-shell catalyst. The results show that the Faradaic efficiency for ethanol can reach 18.2% under specific conditions.
FUNDAMENTAL RESEARCH
(2023)
Article
Chemistry, Multidisciplinary
Mu Xiao, Zhiliang Wang, Kazuhiko Maeda, Gang Liu, Lianzhou Wang
Summary: The efficiency and stability of photo(electro)catalytic devices are crucial for practical solar fuel production. While significant progress has been made in improving the efficiency of photocatalysts/photoelectrodes, their durability remains a major challenge. A systematic process for stability evaluation of photocatalysts/photoelectrodes is proposed, advocating the use of standard operational conditions and reporting stability results with run time, operational stability, and material stability. A widely adopted standardization for stability assessment would enable reliable comparison of results from different labs. Understanding the deactivation mechanisms is essential for designing efficient and stable photocatalysts/photoelectrodes and advancing solar fuel production.
Review
Chemistry, Applied
Haijiao Lu, Xianlong Li, Sabiha Akter Monny, Zhiliang Wang, Lianzhou Wang
Summary: This article presents the latest progress and challenges in the photoelectrocatalytic production of hydrogen peroxide (H2O2) as a renewable fuel, as well as discusses future perspectives.
CHINESE JOURNAL OF CATALYSIS
(2022)
