期刊
FRONTIERS IN CHEMISTRY
卷 7, 期 -, 页码 -出版社
FRONTIERS MEDIA SA
DOI: 10.3389/fchem.2019.00789
关键词
CO2 reduction; photocatalysis; metal-organic frameworks (MOFs); reduced graphene oxide; methyl formate
资金
- National Natural Science Foundation of China [51802160, 51808296]
- Natural Science Foundation of Jiangsu Province [BK20150892, BK20170938]
- Natural Science Foundation of Jiangsu Higher Education Institution of China [15KJB610012]
- 63rd Chinese Postdoctoral Science Foundation [2018M630487]
- NUIST [S8113082001, 2243141601034]
Substantial consumption of fossil fuels causes an increase in CO2 emissions and intensifies global pollution problems, such as the greenhouse effect. Recently, a new type of ultra-low-density porous material, metal-organic frameworks (MOFs), has been developed for the photocatalytic conversion of CO2. Herein, a composite photocatalytic catalyst based on NH2-MIL-125(Ti) and reduced graphene oxide (rGO@NH2-MIL-125) was fabricated through a facile one-pot process. The acquired materials were characterized to obtain their structures, morphologies, and optical information. The experimental results showed that methyl formate (MF) was the predominant reaction product, and rGO@NH2-MIL-125 exhibited the highest yield of 1,116 mu mol center dot g(-1)center dot h(-1), more than twice that of pure MIL-125. The high photoactivity of rGO@NH2-MIL-125 can be ascribed to the effective spatial separation and transfer of photoinduced carriers, largely due to the synergistic effect of amino functionality and rGO incorporation. rGO@NH2-MIL-125 also displayed acceptable repeatability in cyclic runs for CO2 reduction.
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