skip to main content

SciTech ConnectSciTech Connect

Title: Heterogeneous nucleation of CdS to enhance visible-light photocatalytic hydrogen evolution of SiC/CdS composite

Synthesis of composite photocatalyst is one of the most important strategies to enhance the yield of hydrogen produced by water splitting. However, one photocatalyst usually tends to randomly aggregate on the other's surface, which weakens the electron transport of the heterogeneous interface. Herein, we developed a hydrothermal reaction to synthesize the SiC/CdS composite with a feasible Z-scheme and well-controlled dispersion of CdS on SiC surface. Heterogeneous structure on the catalyst interface is obtained, leading to more light-absorption and effective electron-hole separation between the well-contacted components, which contribute to the doubly enhanced photocatalytic performance of the composite. This work provides a simple and practical route to improve the catalytic activity by optimizing the intrinsic contact of Z-scheme composite semiconductors.
Authors:
; ; ; ;  [1]
  1. Department of Chemistry, School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing 100083 (China)
Publication Date:
OSTI Identifier:
22483145
Resource Type:
Journal Article
Resource Relation:
Journal Name: Applied Physics Letters; Journal Volume: 107; Journal Issue: 1; Other Information: (c) 2015 AIP Publishing LLC; Country of input: International Atomic Energy Agency (IAEA)
Country of Publication:
United States
Language:
English
Subject:
71 CLASSICAL AND QUANTUM MECHANICS, GENERAL PHYSICS; ABSORPTION; CADMIUM SULFIDES; HYDROGEN; HYDROTHERMAL SYNTHESIS; INTERFACES; NUCLEATION; PHOTOCATALYSIS; SEMICONDUCTOR MATERIALS; SILICON CARBIDES; SURFACES; VISIBLE RADIATION