Visible light activated photocatalytic degradation of tetracycline by a magnetically separable composite photocatalyst: Graphene oxide/magnetite/cerium-doped titania
Visible light activated photocatalytic degradation of tetracycline by a magnetically separable composite photocatalyst: Graphene oxide/magnetite/cerium-doped titania
复制标题
磁可分离复合光催化剂：氧化石墨烯/磁铁矿/掺铈二氧化钛可见光激活光催化降解四环素
DOI：
10.1016/j.jcis.2016.01.005
复制
发表时间：
2016-04-01
影响因子：
9.9
通讯作者：
Qian, Jin
中科院分区：
文献类型：
--
作者：
Cao, Muhan;Wang, Peifang;Qian, Jin
本研究采用一种简便的方法制备了磁性氧化石墨烯负载Ce掺杂二氧化钛(MGO-Ce-Ti02)杂化复合材料。所制备的样品具有良好的吸附能力、高的可见光活性和磁分离能力，是一种降解四环素(TC)的新型光催化剂。根据LC-MS的分析结果，提出了TC的中间产物和光催化路线。此外，在外加磁场辅助下的多轮实验中，考察了MGO-Ce-TiO2光催化活性的重复性。因此，所制备的复合光催化剂在悬浮反应体系中能够提供有效的回收能力，被认为是一种很有前途的光催化剂。研究了氧化镁含量对光催化性能的影响，得到了最佳含量。(C)2016 Elsevier Inc.保留所有权利。
In this study, magnetic graphene oxide-loaded Ce-doped titania (MGO-Ce-TiO2) hybridized composite was prepared by a facile method. The as-prepared samples exhibited good adsorption capacity, high visible-light photoactive and magnetic separability as a novel photocatalyst in the degradation of tetracyclines (TC). The intermediate products and photocatalytic route of TC were proposed based on the analysis results of LC-MS. Moreover, the repeatability of the photoactivity with the use of MGO-Ce-TiO2 was investigated in the multi-round experiments with the assistance of an applied magnetic field. Therefore, the prepared composite photocatalysts were considered as a kind of promising photocatalyst in a suspension reaction system, in which they can offer effectively recovery ability. The effect of MGO content on the photocatalytic performance was also studied, and an optimum content was obtained. (C) 2016 Elsevier Inc. All rights reserved.