期刊
JOURNAL OF COLLOID AND INTERFACE SCIENCE
卷 494, 期 -, 页码 107-113出版社
ACADEMIC PRESS INC ELSEVIER SCIENCE
DOI: 10.1016/j.jcis.2017.01.086
关键词
alpha-Fe2O3 NPAs; CdS NPs; Decoration; Glancing angle deposition; Photoelectrochemical; SILAR; MB; Degradation efficiency; Photocatalytic performance; Visible light
资金
- Research Project by Chinese Ministry of Science and Technology [2016YFE0104000]
- National Natural Science Foundation of China [51372135]
CdS nanoparticles (NPs) decorated alpha-Fe2O3 nanopillar arrays (NPAs) were fabricated through several steps. Fe NPAs were firstly fabricated by glancing angle deposition technique and oxidized in air to gain alpha-Fe2O3 NPAs. Then these NPAs were decorated by CdS NPs through successive ion layer adsorption and reaction (SILAR). Here we have tested photodegredation of methylene blue (MB) and photoelectrochemical properties under visible light. Especially, when SILAR cycle number reaches to 10, it shows the highest degradation efficiency (94% in 75 min on MB) which improves 72% comparing with pure one and the highest photocurrent density (2.0 mA cm(-2) at 0.4 V vs Ag/AgCl electrode). alpha-Fe2O3/CdS hetero-junctions could greatly enhance photocatalytic performance, which can help to accomplish sufficient usage of solar energy and be exploited on pollution abatement in future. (C) 2017 Elsevier Inc. All rights reserved.
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