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In this study,the Ag/AgCl/WO3 plasmonic Z-scheme photocatalysts with different contents of Ag/AgCl nanoparticles (NPs) were prepared through a facile ultrasonic precipitation method in geothermal water,wherein the geothermal water served as the chlorine source.Then the photocatalytic activity was investigated by degradation of 4-Aminobenzoic acid (4-ABA) under visible-light irradiation.It was found that the as-prepared 50 wt% Ag/AgCl/WO3 photocatalyst showed the highest photocatalytic efficiency with 25.12 and 3.53 times higher than those of pure WO3 and Ag/AgCl,respectively.The active species trapping experiments indicated that h+ and ·O2 were key factors in 4-ABA photodegradation process.The possible plasmonic Z-scheme photocatalytic mechanism of photocatalytic reaction for 4-ABA degradation was proposed based on systematical characterizations.We hope this paper could give new ideas for further exploiting geothermal energy to design and fabricate highly efficient visible-light-driven photocatalysts for environmental remediation.
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来源期刊 能源化学 学科
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年,卷(期) 2018,(3) 所属期刊栏目
研究方向 页码范围 826-835
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能源化学
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2095-4956
10-1287/O6
大连市中山路457号
eng
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