标题:Passivated Codoping Can Improve the Solar-to-Hydrogen Efficiency of Graphitic Carbon Nitride
作者:Feng, Jin; Ma, Huizhong; Chen, Tingwei; Liu, Chengbu; Ma, Yuchen
作者机构:[Feng, Jin; Ma, Huizhong; Chen, Tingwei; Liu, Chengbu; Ma, Yuchen] Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China.
通讯作者:Ma, Yuchen
通讯作者地址:[Ma, YC]Shandong Univ, Sch Chem & Chem Engn, Jinan 250100, Shandong, Peoples R China.
来源:JOURNAL OF PHYSICAL CHEMISTRY C
出版年:2018
卷:122
期:13
页码:7296-7302
DOI:10.1021/acs.jpcc.8b01122
摘要:Passivated codoping has never been reported to enhance the solar-to-hydrogen activity of g-C3N4, although it is an effective approach for other materials. In this letter, we use many-body Green's function theory to analyze the electronic structures, optical absorption spectra, and spatial distribution of electron-hole pair of the doped g-C3N4. Our results suggest that the passivated codoping, such as B+O, could not only extend absorption toward visible range but also promote the separation of photogenerated hole and electron to different parts of g-C3N4. Improvement of photocatalytic activity can be realized only when the n-type and p-type dopants reside in different tris-triazine units of g-C3N4. This manifests the important role of codoping microstructure on solar-to-hydrogen efficiency. These results could provide a guideline for the design of more efficient artificial photocatalysts.
收录类别:EI;SCOPUS;SCIE
资源类型:期刊论文
原文链接:https://www.scopus.com/inward/record.uri?eid=2-s2.0-85045099919&doi=10.1021%2facs.jpcc.8b01122&partnerID=40&md5=d66a74b92a501c06d799b9ae5cc1a1c5
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