硅酸盐通报2017，Vol.36Issue(10)：3361-3367,7.
新型g-C3N4/CuS复合材料的制备及光催化研究
Synthesis and Photocatalytic Property of g-C3N4/CuS Composites
摘要
Abstract
A"one-pot"hydrothermal route was used to fabricate CuS modified graphitic carbon nitride ( g-C3N4/CuS ) composite photocatalyst . The sample was characterized by a series of analytical techniques such as SEM , XRD, FT-IR, DRS etc.The photocatalytic activity of the as-prepared catalyst was evaluated by reducing of Cr ( VI ) under visible light irradiation . The results show that the photocatalytic activity of g-C3N4/CuS composite photocatalyst is superior to that of pure g-C3N4 and CuS. Under visible light excitation , the removal rate of Cr ( VI) is up to 70％within 180 min.The introduction of CuS not only broadens the range of visible light absorption , but also slows down the recombination rate of photogenerated electrons and holes , thus improving the photocatalytic activity of g-C3N4/CuS.The catalytic activity of the composites is greatly influenced by the pH value of the solution , and the photocatalytic reaction is more favorable under acidic conditions .The coexistence of low concentration of humic acid has no significant effect on the removal of Cr ( VI ) .The g-C3N4/CuS showes excellent catalytic activity under visible light and can be used for photocatalytic reduction of Cr (VI) in wastewater.关键词
石墨相氮化碳(g-C3N4)/g-C3N4/CuS复合材料/光催化还原/Cr(VI)Key words
graphitic carbon nitride ( g-C3N4 )/g-C3N4/CuS composite material/photocatalytic reduction/Cr( VI)分类
资源环境引用本文复制引用
赵海亮,岳文丽,陈波..新型g-C3N4/CuS复合材料的制备及光催化研究[J].硅酸盐通报,2017,36(10):3361-3367,7.基金项目
国家自然科学基金青年基金项目(21307048) （21307048）
