Article
Nanoscience & Nanotechnology
Chiu-Yen Wang, Yu-Kai Wu, Liang-Feng Tsai, Hou-Kuan Lee, Ya-Chu Hsu
Summary: The SnS2/SnO2 heterostructure and SnS2 nanoflakes were synthesized using a one-step SnO2-templated chemical vapor deposition method. The photocatalytic activity for MB degradation under visible light was significantly enhanced by the SnO2/SnS2 heterostructure and oxide vacancies of nanoflakes, with O-2(-) and OH identified as the main active species in the photodegradation reaction.
Article
Chemistry, Physical
Yang Li, Zongming Liu, Shuangyan Wu, Mingchang Zhu, Ying Zhang
Summary: A series of Zn3In2S6@SnS2 photocatalysts with different SnS2 mass ratios were prepared by hydrothermal method. The composite materials were used for photocatalytic hydrogen evolution under visible light excitation. The unique structure accelerates the separation and transfer of photo-generated electrons and holes. The Zn3In2S6@SnS2 three-dimensional heterostructure without any co-catalyst (SnS2 doping amount of 10 %) exhibited remarkable activity, and its hydrogen production rate was 15443 mu mol h- 1g- 1, indicating high photocatalytic stability for water decomposition. Based on photoelectrochemical (PEC) and hydrogen evolution tests, a reasonable photocatalytic mechanism was proposed.
CHEMICAL PHYSICS LETTERS
(2023)
Article
Chemistry, Physical
Xin Zhang, Haohuan Yuan, Jiao Bao, Wenting Xiao, Guannan He
Summary: In this article, SnS2 nanoparticles were uniformly assembled onto the surface of Zn0.2Cd0.8S (ZCS) nanopolyhedra through a hydrothermal route, forming hetero-junctions. The optimized hydrogen evolution reaction (HER) performance reached 12170 & mu;mol/gh, with an apparent quantum yield (AQY) of 15.5% at 420 nm. This work not only proposed a feasible route to improve the photocatalytic activity of ZCS, but also provided insights into the role of heterojunctions and the reaction mechanism.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Niwesh Ojha, Abhinav Bajpai, Sushant Kumar
Summary: By forming a heterostructure between Cu2O and SnS2/SnO2 nanocomposite, the photocatalytic reduction of CO2 to CO, H2, and CH4 under ambient conditions is significantly improved. Oxygen vacancies within the catalysts play a crucial role in capturing photo-induced charge carriers and influencing the reactivity and selectivity of products. The p-n heterojunction formation offers favorable photoreductive potentials and high stability, indicating promising potential for wide application in photocatalysis.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Physical
Jing Wu, Rong Zhao, Hui Xiang, Chenfan Yang, Wenda Zhong, Chengzhi Zhang, Qin Zhang, Xuanke Li, Nianjun Yang
Summary: The tin disulfide/stannic oxide heterostructure introduces more active facets or a high density of active sites, accelerates the diffusion kinetic of electrons and ions, lowers the water dissociation energies, and optimizes adsorption energies of hydrogen atoms, leading to superior performance in hydrogen evolution reactions in alkaline electrolytes.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Yanling Geng, Xiaoli Zou, Yanan Lu, Lei Wang
Summary: A series of SnS2/ZnIn2S4 photocatalysts with different mass ratios of SnS2 were prepared and used for photocatalytic hydrogen evolution under visible light excitation. Enhanced photocatalytic activity was observed in all the composites, with 2.5-SS/ZIS achieving the highest H-2 evolution rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2022)
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
Chemistry, Physical
Kotesh Kumar Mandari, Namgyu Son, Taeseong Kim, Misook Kang
Summary: This study presents the enhanced charge carrier separation and improved visible-light absorption capability of ternary nanostructures of Ag/AgVO3 with SnS2. The SnS2@Ag/AgVO3 heterostructures showed higher photocatalytic H-2 performance and quantum efficiency compared to SnS2 alone under solar light irradiation. The enhanced activity of SnS2@Ag/AgVO3 can be attributed to the maximized interfacial contact between SnS2 and Ag/AgVO3, as well as the high visible-light absorptivity and efficiency of SnS2 in the heterostructures.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Multidisciplinary
Shizhao Si, Yanfei Fan, Dan Liang, Ping Chen, Guanwei Cui, Bo Tang
Summary: A heterostructure material g-C3N4/SrZrO3 was prepared by grinding and heating a mixture of SrZrO3 and g-C3N4. The synthesized photocatalysts were characterized by various techniques, including SEM, XRD, XPS, EDS, HRTEM, and infrared spectra. The g-C3N4/SrZrO3 material exhibited visible light absorption ability and significantly higher photocatalytic activity than pristine g-C3N4 or SrZrO3. The enhanced photocatalytic performance was attributed to the efficient separation of photogenerated electrons and holes facilitated by the cooperation of g-C3N4 and SrZrO3, as demonstrated by photocurrent measurements.
Article
Chemistry, Inorganic & Nuclear
Haitao Zhao, Baohua Zhao, Heyuan Liu, Xiyou Li
Summary: In this study, a high-performance photocatalyst was successfully synthesized by constructing heterojunctions and core-shell structure. The composite material exhibited broad spectral absorption, large surface area, and excellent charge separation efficiency, resulting in remarkable hydrogen evolution rate and photostability.
DALTON TRANSACTIONS
(2023)
Article
Energy & Fuels
Lina Yang, Qingzheng Tian, Xiaomei Wang, Hui Yang, Alan Meng, Zhenjiang Li
Summary: Here, a novel non-noble metal photocatalyst Co3S4/MnCdS (CS/MCS) was successfully prepared through a simple hydrothermal method, achieving highly efficient hydrogen evolution. The interface region of CS/MCS exhibits an interfacial internal electric field due to the work function difference between CS and MCS. Under light illumination, the photogenerated charge carriers transfer in S-scheme-like type, resulting in enhanced charge separation and diffusion, as well as broadened light absorption. The obtained CS/MCS composite shows superior photocatalytic performance and good photostability, providing new ideas for developing efficient noble-metal-free photocatalysts for hydrogen evolution.
Article
Chemistry, Physical
Feifei You, Yunan Zhou, Danyang Li, Hao Zhang, Dawei Gao, Xiaohong Ma, Rui Hao, Juzhe Liu
Summary: A three-dimensional spatial configuration and heterogeneous interface construction were achieved in a SnS2/SnO2 composite, resulting in a hierarchical flower-like morphology. The composite exhibited excellent selectivity and impressive photocatalytic CO2-to-CO performance.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2023)
Article
Chemistry, Physical
Yifan Wang, Xiangyu Meng, Qiyu Hu, Meiyu Zhang, Xiaohu Cao, Chunjiang Xu, Yong Ding
Summary: The combination of Ti3+ doped TiO2-x with ZnIn2S4 resulted in a novel photocatalyst with improved hydrogen evolution reaction (HER) performance compared to TiO2-x alone. The formation of a Type II heterojunction enhanced the separation of photogenerated carriers and electron transfer rate, leading to higher hydrogen evolution rate.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2021)
Article
Electrochemistry
Lu Yu, Zhihao Xiong, Wenyuan Zhang, Donghua Wang, Haofeng Shi, Chengdeng Wang, Xingxin Niu, Chong Wang, Lei Yao, Xiaoqin Yan
Summary: Among energy storage devices, lithium-ion capacitors (LICs) stand out due to their high energy densities and power densities. However, the mismatch in storage mechanisms between the positive and negative materials limits the performance of LICs. In this study, a Sn-based heterostructure@MXene anode material was synthesized to achieve excellent rate performance and increased lithium storage capacity, leading to a better match with the cathode. The hybrid electrode demonstrated remarkable rate performance and cycle stability, reducing the kinetic gap with capacitor-type cathodes. Assembled LICs based on this hybrid anode and nitrogen-doped activated carbon cathode exhibited high power/energy density and long cycling life.
ELECTROCHIMICA ACTA
(2022)
Article
Electrochemistry
Yueying Li, Weihua Guo, Hongshun Hao, Lijun Wang, Qing Su, Shanshan Jin, Lei Qin, Wenyuan Gao, Guishan Liu, Zhiqiang Hu
ELECTROCHIMICA ACTA
(2015)
Article
Chemistry, Physical
Y. Y. Li, H. S. Hao, L. Qin, H. L. Wang, M. Q. Nie, Z. Q. Hu, W. Y. Gao, G. S. Liu
JOURNAL OF ALLOYS AND COMPOUNDS
(2015)
Article
Nanoscience & Nanotechnology
Yue-Ying Li, Jian-Gan Wang, Huan-Huan Sun, Bingqing Wei
ACS APPLIED MATERIALS & INTERFACES
(2018)
Article
Chemistry, Physical
Yueying Li, Jian-Gan Wang, Yuancheng Fan, Huanhuan Sun, Wei Hua, Huanyan Liu, Bingqing Wei
APPLIED CATALYSIS B-ENVIRONMENTAL
(2019)
Article
Chemistry, Physical
Yueying Li, Shiyu Liang, Huanhuan Sun, Wei Hua, Jian-Gan Wang
Summary: This study demonstrates a surface treatment strategy to enhance the performance of TiO2-x nanorod arrays for photoelectrochemical water splitting, achieving high photocurrent density and efficient charge separation.
Article
Chemistry, Physical
Yueying Li, Jian-Gan Wang, Wei Hua, Huanyan Liu, Bingqing Wei
JOURNAL OF MATERIALS CHEMISTRY A
(2019)
Article
Nanoscience & Nanotechnology
Yue-Ying Li, Jian-Gan Wang, Xing-Rui Liu, Chao Shen, Keyu Xie, Bingqing Wei
ACS APPLIED MATERIALS & INTERFACES
(2017)
