Facile Construction of Metal-Free g-C3N4 Isotype Heterojunction with Highly Enhanced Visible-light Photocatalytic Performance
Meng QG(孟庆国); Yuan MZ(苑明哲); Lv HQ(吕海钦); Chen, Zhen; Zhou, Guofu; Chen ZH(陈志鸿); Wang, Xin
作者部门广州中国科学院沈阳自动化研究所分所
关键词G-c3n4 Isotype Heterojunction Protonation-assisted Hydrothermal Method Photocatalytic Stability And Reusability
发表期刊CHEMISTRYSELECT
ISSN2365-6549
2017
卷号2期号:24页码:6970-6978
收录类别SCI
WOS记录号WOS:000408644100007
产权排序1
资助机构NSFC [51602111] ; National Key R&D Program of China [2016YFB0401502] ; Hundred Talent Program of Chinese Academy Sciences, Guangdong Province [2015 A030310196] ; Pearl River S&T Nova Program of Guangzhou [201506040045] ; Guangzhou post-doctoral initial funding
摘要Carbon Nitride is considered as a promising photocatalyst material because of its unique properties such as environment-friendly, suitable band gap and high stability. However, the photocatalytic activity of pristine g-C3N4 was greatly hindered by the recombination of photo-generated electron-hole pairs. In this work, we provide an alternative method to address this problem by the construction of g-C3N4 isotype heterojunction (CNH-T/CNH-U) structure, which was successfully synthesized by a facile protonation assisted hydrothermal method. Under the irradiation of visible light (lambda > 420nm), the CNH-T/CNH-U isotype heterojunction photocatalyst displays much higher photodegradation activity of organic dyes degradation and H-2-production activity than the pure CNH-T or CNH-U sample. This remarkably improved photocatalytic performance is attributed to the successful construction of CNH-T/CNH-U isotype heterojunction associated by protonation, which results in larger surface area and the more efficient separation of photo-generated electron-hole pairs, further investigated by electron paramagnetic resonance, photoluminescence, photocurrent measurement, and a series of active species trapping experiments.
语种英语
引用统计
被引频次:1[WOS]   [WOS记录]     [WOS相关记录]
文献类型期刊论文
条目标识符http://ir.sia.cn/handle/173321/20998
专题广州中国科学院沈阳自动化研究所分所
通讯作者Chen ZH(陈志鸿)
作者单位1.Shenyang Institute of Automation, Guangzhou, Chinese Academy of Science, Guangzhou, 511400, PR China
2.Institute of Electronic Paper Displays, South China Academy of Advanced Optoelectronics, South China Normal University, Guangdong, 510006, PR China
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GB/T 7714
Meng QG,Yuan MZ,Lv HQ,et al. Facile Construction of Metal-Free g-C3N4 Isotype Heterojunction with Highly Enhanced Visible-light Photocatalytic Performance[J]. CHEMISTRYSELECT,2017,2(24):6970-6978.
APA Meng QG.,Yuan MZ.,Lv HQ.,Chen, Zhen.,Zhou, Guofu.,...&Wang, Xin.(2017).Facile Construction of Metal-Free g-C3N4 Isotype Heterojunction with Highly Enhanced Visible-light Photocatalytic Performance.CHEMISTRYSELECT,2(24),6970-6978.
MLA Meng QG,et al."Facile Construction of Metal-Free g-C3N4 Isotype Heterojunction with Highly Enhanced Visible-light Photocatalytic Performance".CHEMISTRYSELECT 2.24(2017):6970-6978.
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