Preparation of graphene/TiO2 composites by nonionic surfactant strategy and their simulated sunlight and visible light photocatalytic activity towards representative aqueous POPs degradation
Preparation of graphene/TiO2 composites by nonionic surfactant strategy and their simulated sunlight and visible light photocatalytic activity towards representative aqueous POPs degradation
复制标题
非离子表面活性剂策略制备石墨烯/TiO2复合材料及其模拟太阳光和可见光光催化降解代表性水性持久性有机污染物的活性
DOI：
10.1016/j.jhazmat.2013.01.069
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发表时间：
2013-04-15
影响因子：
13.6
通讯作者：
Zeng, Zhenxing
中科院分区：
文献类型：
--
作者：
Li, Kexin;Xiong, Jingjing;Zeng, Zhenxing
采用单步非离子表面活性剂策略结合溶剂热处理技术制备了一系列石墨烯/TiO2 复合材料。对其相结构、形貌、孔隙率、光吸收性能以及组成和结构进行了表征。所制备的复合材料成功应用于在模拟太阳光（λ > 320 nm）和可见光（λ > 400 nm）照射下降解水性持久性有机污染物（POPs），如罗丹明 B、涕灭威和诺氟沙星。详细研究了水性 POPs 的降解机理和动力学。水性 POPs 的矿化和复合材料的可回收性也在相同条件下进行了测试。 (C) 2013 Elsevier B.V. 保留所有权利。
A series of graphene/TiO2 composites were fabricated using a single-step nonionic surfactant strategy combined with the solvothermal treatment technique. Their phase structure, morphology, porosity, optical absorption property, as well as composition and structure, were characterized. The as-prepared composites were successfully applied to degrade aqueous persistent organic pollutants (POPs) such as rhodamine B, aldicarb, and norfloxacin in simulated sunlight (lambda > 320 nm) and visible light (lambda > 400 nm) irradiation. The degradation mechanism and kinetics of aqueous POPs were studied in detail. The mineralization of aqueous POPs and the recyclability of the composites were also tested in the same condition. (C) 2013 Elsevier B.V. All rights reserved.