P-doped tubular g-C3N4 with surface carbon defects: Universal synthesis and enhanced visible-light photocatalytic hydrogen production

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	P-doped tubular g-C3N4 with surface carbon defects: Universal synthesis and enhanced visible-light photocatalytic hydrogen production
	Guo, Shien 1,2; Tang, Yunqi 1; Xie, Ying 1; Tian, Chungui 1; Feng, Qingmao 1; Zhou, Wei 1; Jiang, Baojiang 1
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2017-12-05
卷号	218 页码:664-671
关键词	P-doped Tubular G-c3n4 Photocatalyst Hydrogen Evolution Carbon Defects Density Functional Theory
英文摘要	Hetero-element doping or vacancy defects of g-C3N4 framework were found significantly to control its electronic structure and enhance photocatalytic activity under visible light. Herein, we fabricated P-doped tubular g-C3N4 (P-TCN) with surface carbon defects wherein the P-doping and carbon defects were conveniently introduced during thermal polymerization of a supramolecular precursor. The supramolecular precursor of rod-like morphology was obtained only from melamine molecules under a sodium pyrophosphate-assisted hydrothermal process. As contrast, similar P-doped g-C3N4 tubes were obtained using other phosphates, such as ammonium phosphate, sodium hypophosphite and sodium phosphite, thus highlighting the versatility of this method to tune the morphology and C/N ratio for g-C3N4 tubes. The photocatalytic activities of P-TCNs were evaluated using hydrogen evolution from water under visible light. Among these, P-TCN obtained by sodium pyrophosphate-assisted hydrothermal reaction showed the highest photocatalytic activity due to high P element doping, enhanced visible light absorption and improved charge separation. The novel synthetic method described here thus represents an effective way of non-metal doping and C/N ratio tuning of g-C3N4 with excellent photocatalytic performance. (C) 2017 Elsevier B.V. All rights reserved.
语种	英语
内容类型	期刊论文
源URL	[http://ir.iccas.ac.cn/handle/121111/39266]
专题	化学研究所_其它
作者单位	1.Heilongjiang Univ, Key Lab Funct Inorgan Mat Chem, Minist Educ PR China, Harbin, Heilongjiang, Peoples R China 2.Chinese Acad Sci, Inst Chem, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Guo, Shien,Tang, Yunqi,Xie, Ying,et al. P-doped tubular g-C3N4 with surface carbon defects: Universal synthesis and enhanced visible-light photocatalytic hydrogen production[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2017,218:664-671.
APA	Guo, Shien.,Tang, Yunqi.,Xie, Ying.,Tian, Chungui.,Feng, Qingmao.,...&Jiang, Baojiang.(2017).P-doped tubular g-C3N4 with surface carbon defects: Universal synthesis and enhanced visible-light photocatalytic hydrogen production.APPLIED CATALYSIS B-ENVIRONMENTAL,218,664-671.
MLA	Guo, Shien,et al."P-doped tubular g-C3N4 with surface carbon defects: Universal synthesis and enhanced visible-light photocatalytic hydrogen production".APPLIED CATALYSIS B-ENVIRONMENTAL 218(2017):664-671.