降级(电信)
气凝胶
异质结
石墨烯
光催化
材料科学
吸附
复合数
光热治疗
化学工程
密度泛函理论
化学
光电子学
复合材料
纳米技术
计算机科学
有机化学
催化作用
计算化学
工程类
电信
作者
Tianci Li,Jingxiao Liu,Fei Shi,Haoyuan Zhang,Haojie Zhang,Chuangchuang Ma,Muhammad Wasim
标识
DOI:10.1016/j.jece.2023.109301
摘要
The construction of semiconductor heterojunction photocatalyst is an effective way to improve the photocatalytic performance. In this study, a novel S-type heterojunction CsxWO3/BiOI photocatalyst, with both photothermal effect and good photocatalytic activity, was constructed in graphene aerogel. The as-prepared composite aerogel showed high adsorption/photocatalytic activity and cycling stability for removal of enrofloxacin. Especially, the aerogel sample 1.0CIGA with CsxWO3:BiOI molar ratio 1.0 showed a high removal efficiency of enrofloxacin with attaining to nearly 100% within 60 min. Moreover, the photothermal conversion effect of CsxWO3 can further promote the photocatalytic degradation reaction efficiency. The degradation intermediate products and possible degradation pathways of enrofloxacin were analyzed and explored. In addition, the energy band structure and charge transfer mechanism of CsxWO3/BiOI heterojunction were studied by density functional theory (DFT) and other test methods. This work is of great significance for developing efficient photocatalytic materials and the as-prepared CsxWO3/[email protected] composite aerogel with high adsorption/photothermal catalysis will have promising applications in the field of environmental purification.
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