期刊
CHEMICAL ENGINEERING SCIENCE
卷 229, 期 -, 页码 -出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ces.2020.116042
关键词
Photocatalysis; CO2 reduction; Mn complex; g-C3N4; Carboxyl anchoring group
资金
- National Natural Science Foundation of China [21872009]
A heterogeneous photocatalytic system was developed using a manganese complex and g-C3N4 to reduce CO2 to CO, with significant enhancement in turnover number and stability. This environmentally friendly and sustainable system has the potential to stimulate the development of photocatalytic CO2 transformation methods using solar energy.
A heterogeneous photocatalytic system that consists of a manganese complex and g-C3N4, which mainly act as the catalytic and light-harvesting units, respectively, was developed for the reduction of CO2 to CO. The anchoring group (carboxyl) and the structure of g-C3N4 promote electron transfer from g-C3N4 to the manganese unit and strengthen electronic interactions between the two units. The photocatalytic prop-erties and stability of a tricarbonyl Mn bipyridyl complex were significantly enhanced by anchoring on a g-C3N4 support. The turnover number for CO formation reached 75.7 under the optimal reaction conditions. This photocatalytic system is environmentally friendly and sustainable, and will stimulate the development of potential photocatalytic CO2 transformation methods that use solar energy. (C) 2020 Elsevier Ltd. All rights reserved.
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