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Metal-free g-C3N4 photocatalyst by sulfuric acid activation for selective aerobic oxidation of benzyl alcohol under visible light
Zhang, Ligang1,2; Liu, Di1,3; Guan, Jing1; Chen, Xiufang1; Guo, Xingcui1; Zhao, Fuhua1,2; Hou, Tonggang1; Mu, Xindong1
2014-11-01
发表期刊MATERIALS RESEARCH BULLETIN
卷号59期号:1页码:84-92
摘要

In this work, modification of graphitic carbon nitride photocatalyst with acid was accomplished with a facile method through reflux in different acidic substances. The g-C3N4-based material was found to be a metal-free photocatalyst useful for the selective oxidation of benzyl alcohol with dioxygen as the oxidant under visible light irradiation. Acid modification had a significant influence on the photocatalytic performance of g-C3N4. Among all acid tested, sulfuric acid-modified g-C3N4 showed the highest catalytic activity and gave benzaldehyde in 23% yield for 4 h under visible light irradiation, which was about 2.5 times higher than that of g-C3N4. The acid modification effectively improved surface area, reduced structural size, enlarged band gap, enhanced surface chemical state, and facilitated photoinduced charge separation, contributing to the enhanced photocatalytic activity. It is hoped that our work can open promising prospects for the utilization of metal free g-C3N4-based semiconductor as visible-light photocatalyst for selective organic transformation. (C) 2014 Elsevier Ltd. All rights reserved.

文章类型Article
关键词Nitrides Nanostructures Semiconductors Optical Properties Catalytic Properties
WOS标题词Science & Technology ; Technology
DOI10.1016/j.materresbull.2014.06.021
关键词[WOS]GRAPHITIC CARBON NITRIDE ; HYDROGEN EVOLUTION ; EFFICIENT CATALYSTS ; MESOPOROUS SILICA ; WATER ; CHEMISTRY ; POLYMERS ; OXYGEN ; NANOCOMPOSITES ; TRANSFORMATION
收录类别SCI
语种英语
WOS研究方向Materials Science
WOS类目Materials Science, Multidisciplinary
WOS记录号WOS:000342956000014
引用统计
文献类型期刊论文
条目标识符http://ir.qibebt.ac.cn/handle/337004/6360
专题绿色化学催化团队
作者单位1.Chinese Acad Sci, Qingdao Inst Bioenergy & Bioproc Technol, Key Lab Biobased Mat, Qingdao 266101, Peoples R China
2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
3.Ocean Univ China, Qingdao 266003, Peoples R China
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GB/T 7714
Zhang, Ligang,Liu, Di,Guan, Jing,et al. Metal-free g-C3N4 photocatalyst by sulfuric acid activation for selective aerobic oxidation of benzyl alcohol under visible light[J]. MATERIALS RESEARCH BULLETIN,2014,59(1):84-92.
APA Zhang, Ligang.,Liu, Di.,Guan, Jing.,Chen, Xiufang.,Guo, Xingcui.,...&Mu, Xindong.(2014).Metal-free g-C3N4 photocatalyst by sulfuric acid activation for selective aerobic oxidation of benzyl alcohol under visible light.MATERIALS RESEARCH BULLETIN,59(1),84-92.
MLA Zhang, Ligang,et al."Metal-free g-C3N4 photocatalyst by sulfuric acid activation for selective aerobic oxidation of benzyl alcohol under visible light".MATERIALS RESEARCH BULLETIN 59.1(2014):84-92.
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