Journal
APPLIED CATALYSIS B-ENVIRONMENTAL
Volume 183, Issue -, Pages 1-7Publisher
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apcatb.2015.10.020
Keywords
Photocatalyst; MO3S132-/BiOBr; [Mo3S13](2-) nanoclusters; Sulfur tolerant
Funding
- Recruitment Program of Global Experts in China
- Shanghai Jiao Tong University
- NSFC [51372151, 21303103]
- Foundation of Shanghai Government [15PJ1404000]
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The sulfur tolerant MO3S132-/BiOBr nanocomposite photocatalysts were facilely fabricated by a hydrothermal method. The characterizations including X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), energy dispersive X-ray spectrometry (EDS), UV-vis diffuse reflection spectroscopy (DRS) and photoluminescence (PL) investigate the structures, elemental composition, morphologies and photocatalytic activities of MO3S132-/BiOBr nanocomposite. The 5.0 wt% MO3S132-/BiOBr composite sample showed highest visible-light-driven photocatalytic activity for decolorization of organic dyes including Rhodamine B (RhB) and sulfure containing methylene blue (MB). The decolorization of RhB was dominated by the direct hole and the generated O-center dot(2)- radicals oxidation process. Our 5.0 wt% MO3S132-/BiOBr nanocomposite exhibited comparable photocatalytic activity as the state of art 1 wt% BiOBr/Pt composite for photocatalytic decolorization of RhB. The 5.0 wt% MO3S132-/BiOBr composite possessed better sulfur resistance than 1.0 wt% Pt/BiOBr composite. (C) 2015 Elsevier B.V. All rights reserved.
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