期刊
APPLIED SURFACE SCIENCE
卷 422, 期 -, 页码 1093-1101出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2017.05.100
关键词
Titanium dioxide; Cuprous sulfide; Schiff base polymers; Adsorption; Photocatalysis
类别
资金
- National Natural Science Foundation of China [21507103]
- Natural Science Basic Research Plan in Shaanxi Province of China [2015JM5232]
- Ministry of Housing and Urban-Rural Science Project Technical Plan [2014-K5-037]
A Schiff base compound was used to prepare a Cu2S-Cu-TiO2 mesoporous carbon composite photocatalyst (Cu2S-Cu-TiO2/MC) by a simple precipitation-carbonization method with a carbonization temperature of 750 degrees C. X-ray diffraction and x-ray photoelectron spectroscopy studies show that Cu2S, Cu, and TiO2 exist in Cu2S-Cu-TiO2/MC in the form of nanometer-sized particles. Scanning electron microscope and transmission electron microscope images show that the composites form a spherical carbon structure inlaid with Cu2S and Cu and coated TiO2. The Brunauer-Emmett-Teller test shows that the material has a large specific surface area (76.14m(2)/g) and mesoporous structure. UV-vis diffuse reflection spectroscopy and photoluminescence spectroscopy indicate that the recombination of photo-generated electrons and holes in the samples were inhibited. The composites show good degradation performance in a high concentration (300 mg/L) of methyl orange (MO) solution under visible light. The composites exhibit great potential in the treatment of dyes for wastewater treatment. (C) 2017 Elsevier B.V. All rights reserved.
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