Photocatalytic H2 evolution improvement for H free-radical stabilization by electrostatic interaction of a Cu-BTC MOF with ZnO/GO
Photocatalytic H2 evolution improvement for H free-radical stabilization by electrostatic interaction of a Cu-BTC MOF with ZnO/GO作者机构:College of Chemistry Chemical Engineering and Materials Science Collaborative Innovation Center of Functionalized Probes for Chemical Imaging Key Laboratory of Molecular and Nano Probes Ministry of Education Shandong Normal University Jinan China
出 版 物:《Nano Research》 (纳米研究(英文版))
年 卷 期:2018年第11卷第2期
页 面:979-987页
核心收录:
学科分类:07[理学] 08[工学] 070203[理学-原子与分子物理] 0835[工学-软件工程] 081202[工学-计算机软件与理论] 0702[理学-物理学] 0812[工学-计算机科学与技术(可授工学、理学学位)]
基 金:supported by the National Basic Research Profgram of China 国家自然科学基金 Shandong Provincial Natural Science Foundation, China
主 题:metal-organic framework free radical stabilization H2 evolution photocatalysis electrostatic interactionassembly
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-l,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.