石墨烯
光催化
氧化物
吸附
材料科学
光降解
复合数
化学工程
催化作用
石墨烯泡沫
罗丹明B
三聚氰胺
氧化石墨烯纸
复合材料
化学
纳米技术
有机化学
工程类
冶金
作者
Wenhua Liu,Yuan Gao,Yuping Yang,Quan Zou,Guoxiang Yang,Ziping Zhang,Huifan Li,Yingchun Miao,Hexing Li,Yuen J. Huo
出处
期刊:Chemcatchem
[Wiley]
日期:2018-04-14
卷期号:10 (11): 2394-2400
被引量:16
标识
DOI:10.1002/cctc.201800140
摘要
Abstract Hierarchical photocatalytic composite BiOBr@graphene oxide@melamine foam was developed by using a solvothermal process. In this composite, the graphene oxide‐wrapped melamine foam acted as the substrate for supporting the catalyst, and the BiOBr nanosheets stably combined with the graphene oxide surface in a uniform distribution. This composite could be floated on the solution surface to inhibit the light shielding effect of colorful organic pollutants. Furthermore, the graphene oxide‐wrapped melamine foam provided mass transfer channels for organics and enriched the organics in its 3D structure. BiOBr nanosheets presented efficient photodegradation of organics and solved the problem of adsorption saturation of graphene oxide@melamine foam. Graphene oxide could further improve the light utilization, inhibit the recombination of charges, and enrich the organics. In view of the synergistic effect of adsorption and photocatalysis, this catalyst system realized the efficient removal of the organic rhodamine B and presented the promoted amount of contaminant removal with increased rhodamine B concentration.
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