Enhanced photocatalytic hydrogen evolution activity of CuInS{sub 2} loaded TiO{sub 2} under solar light irradiation
Abstract
In this paper, p–n type CuInS{sub 2}/TiO{sub 2} particles were prepared in ethylenediamine by the solvothermal method. The microstructural properties of the synthesized p–n type catalysts were characterized by X-ray diffraction (XRD) in order to confirm the existence of crystalline CuInS{sub 2} on the surface of TiO{sub 2}, which was also confirmed by X-ray photoelectron spectroscopy (XPS). Transmission electron microscopy (TEM) images provided the detailed morphological properties about the CuInS{sub 2}/TiO{sub 2} heterostructure. UV–vis diffuse reflectance spectroscopy (UV–vis DRS) was used to investigate the optical properties of the CuInS{sub 2}/TiO{sub 2} particles. The DRS results indicated that both the p–n type structure and CuInS{sub 2} acting as a sensitizer can enhance significantly the absorption of UV and visible light. The photocatalytic activities of the CuInS{sub 2}/TiO{sub 2} particles were evaluated by hydrogen evolution reactions using Xe-lamp irradiation as a simulated solar light source. The greatly enhanced photocatalytic activity of hydrogen evolution under simulated solar light is about ~7 fold higher than that of pure commercial TiO{sub 2} (Degussa P25). - Graphical abstract: The heterojunction structure of CuInS{sub 2}/TiO{sub 2} promoted the efficiency of photoinduced charge carrier transfer and highly inherited the recombination of activated electrons and holes. - Highlight: •more »
- Authors:
-
- Department of Chemistry, Huangshan University, Huangshan 245041 (China)
- Key Laboratory for Advanced Materials and Institute of Fine Chemicals, East China University of Science and Technology, 130 Meilong Road, Shanghai 200237 (China)
- Publication Date:
- OSTI Identifier:
- 22475641
- Resource Type:
- Journal Article
- Journal Name:
- Journal of Solid State Chemistry
- Additional Journal Information:
- Journal Volume: 226; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA); Journal ID: ISSN 0022-4596
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 37 INORGANIC, ORGANIC, PHYSICAL AND ANALYTICAL CHEMISTRY; CATALYSTS; CHARGE CARRIERS; COPPER SULFIDES; ELECTRONS; HETEROJUNCTIONS; HOLES; INDIUM SULFIDES; IRRADIATION; MICROSTRUCTURE; OPTICAL PROPERTIES; PHOTOCATALYSIS; RECOMBINATION; SPECTRAL REFLECTANCE; TITANIUM OXIDES; TRANSMISSION ELECTRON MICROSCOPY; VISIBLE RADIATION; X-RAY DIFFRACTION; X-RAY PHOTOELECTRON SPECTROSCOPY
Citation Formats
Li, Changjiang, Xi, Zhenhao, Fang, Wenzhang, Xing, Mingyang, Zhang, Jinlong, and Department of Chemistry, Tsinghua University, Beijing 100084. Enhanced photocatalytic hydrogen evolution activity of CuInS{sub 2} loaded TiO{sub 2} under solar light irradiation. United States: N. p., 2015.
Web. doi:10.1016/J.JSSC.2015.02.011.
Li, Changjiang, Xi, Zhenhao, Fang, Wenzhang, Xing, Mingyang, Zhang, Jinlong, & Department of Chemistry, Tsinghua University, Beijing 100084. Enhanced photocatalytic hydrogen evolution activity of CuInS{sub 2} loaded TiO{sub 2} under solar light irradiation. United States. https://doi.org/10.1016/J.JSSC.2015.02.011
Li, Changjiang, Xi, Zhenhao, Fang, Wenzhang, Xing, Mingyang, Zhang, Jinlong, and Department of Chemistry, Tsinghua University, Beijing 100084. 2015.
"Enhanced photocatalytic hydrogen evolution activity of CuInS{sub 2} loaded TiO{sub 2} under solar light irradiation". United States. https://doi.org/10.1016/J.JSSC.2015.02.011.
@article{osti_22475641,
title = {Enhanced photocatalytic hydrogen evolution activity of CuInS{sub 2} loaded TiO{sub 2} under solar light irradiation},
author = {Li, Changjiang and Xi, Zhenhao and Fang, Wenzhang and Xing, Mingyang and Zhang, Jinlong and Department of Chemistry, Tsinghua University, Beijing 100084},
abstractNote = {In this paper, p–n type CuInS{sub 2}/TiO{sub 2} particles were prepared in ethylenediamine by the solvothermal method. The microstructural properties of the synthesized p–n type catalysts were characterized by X-ray diffraction (XRD) in order to confirm the existence of crystalline CuInS{sub 2} on the surface of TiO{sub 2}, which was also confirmed by X-ray photoelectron spectroscopy (XPS). Transmission electron microscopy (TEM) images provided the detailed morphological properties about the CuInS{sub 2}/TiO{sub 2} heterostructure. UV–vis diffuse reflectance spectroscopy (UV–vis DRS) was used to investigate the optical properties of the CuInS{sub 2}/TiO{sub 2} particles. The DRS results indicated that both the p–n type structure and CuInS{sub 2} acting as a sensitizer can enhance significantly the absorption of UV and visible light. The photocatalytic activities of the CuInS{sub 2}/TiO{sub 2} particles were evaluated by hydrogen evolution reactions using Xe-lamp irradiation as a simulated solar light source. The greatly enhanced photocatalytic activity of hydrogen evolution under simulated solar light is about ~7 fold higher than that of pure commercial TiO{sub 2} (Degussa P25). - Graphical abstract: The heterojunction structure of CuInS{sub 2}/TiO{sub 2} promoted the efficiency of photoinduced charge carrier transfer and highly inherited the recombination of activated electrons and holes. - Highlight: • CuInS{sub 2}/TiO{sub 2} was prepared by a one-step solvothermal method. • 2.5% CuInS{sub 2}/TiO{sub 2} has the highest activity and keeps the activity stable. • Heterojunction structure of sample promoted the separation of electrons and holes.},
doi = {10.1016/J.JSSC.2015.02.011},
url = {https://www.osti.gov/biblio/22475641},
journal = {Journal of Solid State Chemistry},
issn = {0022-4596},
number = ,
volume = 226,
place = {United States},
year = {Sun Mar 15 00:00:00 EDT 2015},
month = {Sun Mar 15 00:00:00 EDT 2015}
}