Microwave-assisted in situ synthesis of reduced graphene oxide-BiVO4 composite photocatalysts and their enhanced photocatalytic performance for the degradation of ciprofloxacin
Microwave-assisted in situ synthesis of reduced graphene oxide-BiVO4 composite photocatalysts and their enhanced photocatalytic performance for the degradation of ciprofloxacin
复制标题
微波辅助原位合成还原氧化石墨烯-BiVO4复合光催化剂及其增强光催化降解环丙沙星的性能
DOI：
10.1016/j.jhazmat.2013.01.051
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发表时间：
2013-04-15
影响因子：
13.6
通讯作者：
Shi, Weidong
中科院分区：
文献类型：
--
作者：
Yan, Yan;Sun, Shaofang;Shi, Weidong
为了提高环丙沙星（CIP）的光降解效率，开发了一种新型微波辅助原位生长方法制备还原氧化石墨烯（RGO）-BiVO4复合光催化剂。与纯 BiVO4 光催化剂相比，所生产的 RGO-BiVO4 复合光催化剂在可见光下表现出极高的 CIP 降解率。特别是，2 wt% RGO-BiVO4 复合光催化剂在 60 分钟内表现出最高的 CIP 降解率（68.2%），是纯 BiVO4 颗粒的 CIP 降解率（22.7%）的 3 倍以上。 RGO-BiVO4光催化剂光催化活性的增强可归因于电子-空穴对的有效分离，而不是光吸收的提高。 (C) 2013 Elsevier B.V. 保留所有权利。
To improve the photodegradation efficiency for ciprofloxacin (CIP), a new-type microwave-assisted in situ growth method is developed for the preparation of reduced graphene oxide (RGO) -BiVO4 composite photocatalysts. The as-produced RGO-BiVO4 composite photocatalysts show extremely high enhancement of CIP degradation ratio over the pure BiVO4 photocatalyst under visible light. Specially, the 2 wt% RGO-BiVO4 composite photocatalyst exhibits the highest CIP degradation ratio (68.2%) in 60 min, which is over 3 times than that (22.7%) of the pure BiVO4 particles. The enhancement of photocatalytic activities of RGO-BiVO4 photocatalysts can be attributed to the effective separation of electron-hole pairs rather than the improvement of light absorption. (C) 2013 Elsevier B.V. All rights reserved.