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Title: The effects of hydrothermal temperature on the photocatalytic performance of ZnIn{sub 2}S{sub 4} for hydrogen generation under visible light irradiation

Highlights: • The ZnIn{sub 2}S{sub 4} (120, 140, 160, 180, and 200 °C) was prepared. • The activities splitting water to hydrogen under visible light were evaluated. • The activity achieved the best when hydrothermal temperature was 160 °C. • The activity order is related to the surface morphology and surface defects. - Abstract: A series of ZnIn{sub 2}S{sub 4} photocatalysts were successfully synthesized using the hydrothermal method with different hydrothermal temperatures (120, 140, 160, 180, and 200 °C) and characterized by various analysis techniques, such as UV–vis, XRD, SEM, BET and PL. The results indicated that these photocatalysts had a similar band gap. The hydrothermal temperature had a huge influence on the properties of the photocatalysts such as the BET surface area, the total pore volume, the average pore diameter, the defects and the morphology. The photocatalytic activities of ZnIn{sub 2}S{sub 4} were evaluated based on photocatalytic hydrogen production from water under visible-light irradiation. The activity order is attributed to the coefficient of the surface morphology and the surface defects. The hydrogen production efficiency achieved the best when the hydrothermal temperature was 160 °C. On the basis of the characterization of the catalysts, the effects of the hydrothermal temperaturemore » on the photocatalytic activity of ZnIn{sub 2}S{sub 4} were discussed.« less
Authors:
 [1] ;  [1] ;  [2] ; ;  [1] ;  [1] ;  [2] ;  [1] ;  [2]
  1. Harbin Institute of Technology Shenzhen Graduate School, Shenzhen Key Laboratory of Water Resource Utilization and Environmental Pollution Control, Shenzhen 518055 (China)
  2. (China)
Publication Date:
OSTI Identifier:
22475951
Resource Type:
Journal Article
Resource Relation:
Journal Name: Materials Research Bulletin; Journal Volume: 70; Other Information: Copyright (c) 2015 Elsevier Science B.V., Amsterdam, The Netherlands, All rights reserved.; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; CRYSTAL STRUCTURE; DEFECTS; EFFICIENCY; HYDROGEN PRODUCTION; HYDROTHERMAL SYNTHESIS; INDIUM COMPOUNDS; INTERSTITIAL HYDROGEN GENERATION; PHOTOCATALYSIS; SCANNING ELECTRON MICROSCOPY; SEMICONDUCTOR MATERIALS; SULFUR COMPOUNDS; SURFACE AREA; SURFACES; VISIBLE RADIATION; X-RAY DIFFRACTION; ZINC COMPOUNDS