? 能源化学(英文)
ISSN 1003-9953
     
能源化学(英文) 2017, Vol. 26 Issue (1) :87-92    DOI: 10.1016/j.jechem.2016.07.004
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Molecular pore-wall engineering of mesozeolitic conjugated polymers for photoredox hydrogen production with visible light
Mingwen Zhang, Jinshui Zhang, Yan Chen, Xinchen Wang
State Key Laboratory of Photocatalysis on Energy and Environment, College of Chemistry, Fuzhou University, Fuzhou 350002, Fujian, China
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摘要 A chemical protocol based on molecular engineering of polymeric matrix is developed for the chemical optimization of ordered mesoporous carbon nitride (OMCN) in this study to address the concerns on the serious nanostructure-induced semiconductive defects, in particular the remarkable hypsochromic shift of absorption threshold and the increased excition dissociation energy. Physical characterizations demonstrate that the successful incorporation of 3-aminothiophene-2-carbonitrile (ATCN) aromatic donor in OMCN matrix can efficiently extend the π-conjugated system, red-shift the optical absorption toward longer wavelengths and promote exciton splitting, thus well overcoming the serious semiconductive defects. In addition, the unique structural benefits of OMCN, such as the well-orientated nanoarchitectures with large specific surface area and uniform nanosized pore, have been well remained in ATCN-modified sample (OMCNA) via adjusting the ATCN/cyanamide molar ratio to minimize the unavoidable matrix disturbance. Hence, an obviously enhanced photocatalytic activity toward H2 evolution and selective oxidation of alcohols are obtained on optimized OMCNA samples, greatly underlining the advantage of molecular engineering in supporting nanostructured photocatalysts.
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关键词Photocatalysis   Graphitic carbon nitride   Polymers   Mesostructure   Water splitting     
收稿日期: 2016-05-08; 发布日期: 2016-07-27
基金资助:

This work was supported by the National Basic Research Program of China (2013CB632405) and the National Natural Science Foundation of China (21425309 and 21173043).

通讯作者 Xinchen Wang     Email: xcwang@fzu.edu.cn
引用本文:   
.Molecular pore-wall engineering of mesozeolitic conjugated polymers for photoredox hydrogen production with visible light[J]  能源化学(英文) , 2017,V26(1): 87-92
.Molecular pore-wall engineering of mesozeolitic conjugated polymers for photoredox hydrogen production with visible light[J]  Journal of Energy Chemistry, 2017,V26(1): 87-92
链接本文:  
http://www.jenergchem.org/CN/10.1016/j.jechem.2016.07.004     或     http://www.jenergchem.org/CN/Y2017/V26/I1/87
 
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