光催化
苯
苯酚
吸附
羟基化
催化作用
材料科学
浸出(土壤学)
涂层
光化学
化学工程
无机化学
化学
有机化学
土壤水分
酶
土壤科学
工程类
环境科学
作者
Baoying Yang,Shikun Zhang,Yan Gao,Lianqi Huang,Can Yang,Yidong Hou,Jinshui Zhang
标识
DOI:10.1016/j.apcatb.2021.120999
摘要
Hydroxylation of benzene to phenol over a photocatalyst is a green approach toward phenol production. ZnFe2O4 (ZFO) with an intrinsic peroxidase-like catalytic behavior toward H2O2 activation is an emerging photocatalyst for benzene hydroxylation reaction; however, its catalytic performance is greatly limited by the fast charge recombination, inevitable metal leaching and hydrophilic surface structure. Herein, the encapsulation of ZFO by carbons ([email protected]) is an effective solution to address these issues. The carbons conformably coating on ZFO not only protect them from corrosion and metal leaching, but also enable the generation of a strong electronic contact between them to facilitate charge separation. In addition, the carbons also increase the surface affinity for benzene adsorption. As a result, [email protected] exhibited a significant enhanced photocatalytic activity and durability for phenol synthesis. Furthermore, [email protected] with carbon derived unique functionalities will have a broad application in photocatalytic green synthesis of fine chemicals.
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