光催化
激进的
光化学
石墨烯
苯
氧化物
电子顺磁共振
材料科学
金属有机骨架
化学
纳米技术
化学工程
催化作用
物理化学
有机化学
核磁共振
吸附
冶金
工程类
物理
作者
Xifeng Shi,Jiahui Zhang,Guanwei Cui,Ning Deng,Wen Wang,Qian Wang,Bo Tang
出处
期刊:Nano Research
[Springer Nature]
日期:2017-07-29
卷期号:11 (2): 979-987
被引量:42
标识
DOI:10.1007/s12274-017-1710-4
摘要
Metal-organic frameworks (MOFs) are self-assembled molecular containers that can encapsulate and stabilize short-lived reaction intermediates. In this study, the Cu-benzene-1,3,5-tricarboxylate (BTC) MOF was incorporated in a ZnO/graphene oxide (GO) photocatalytic system by electrostatic interaction, and the obtained assembly showed improved hydrogen evolution activity. Electron spin resonance analysis was used to detect and monitor free radicals in the photocatalytic system, and demonstrated that Cu-BTC MOF could stabilize and extend the lifetime of free radicals, increasing the chance of H· radical recombination to form H2. This work provides a new strategy for designing highly efficient photocatalysts.
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