期刊
JOURNAL OF ALLOYS AND COMPOUNDS
卷 809, 期 -, 页码 -出版社
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2019.151844
关键词
WO3 microrods; AgCl; Heterojuction; Dyes degradation; Carriers separation efficiency
资金
- National Natural Science Foundation of China [21567008, 21707055]
- Guangdong Province Universities and Colleges Pearl River Scholar Funded Scheme (2019)
- Program for Innovative Research Team of Guangdong University of Petrochemical Technology
- National Science Fund for Distinguished Young Scholars [21425627]
- National Natural Science Foundation of China-SINOPEC Joint fund [U1663220]
- Local Innovative and Research Teams Project of Guangdong Pearl River Talents Program [2017BT01C102]
- Program of 5511 Talents in Scientific and Technological Innovation of Jiangxi Province [20165BCB18014]
- Academic and Technical Leaders of the Main Disciplines in Jiangxi Province [20172BCB22018]
- Yangfan Project of Guangdong Province
A series of robust AgCl/WO3 composite microrods (0.1-0.2 mu m) with different Ag/W molar ratios (0.25, 0.50, 0.75, 1.00, 1.25) were synthesized via hydrothermal-calcination process. The obtained samples were characterized by XRD, SEM, TEM, FT-IR, UV-vis DRS, PL, BET, Raman, transient TPRT and EIS. The photocatalytic test for organic dyes degradation showed that AgCl/WO3 microrods possess much higher photocatalytic activities and stability than bare AgCl and WO3. With optimal AgCl/WO3 molar ratio (0.75 similar to 1), 2 similar to 5 times increse in dye decomposition efficiency w(obtained over AgCl/WO3 microrods. The formation of intimate WO3/AgCl heterojuction (interface) largely enhanced the separation efficiency of photogenerated carriers. This investigation suggested that AgCl/WO3 microrods could a promising photocatalyst for environmental remediation. (C) 2019 Elsevier B.V. All rights reserved.
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