Remarkably enhanced H-2 evolution activity of oxidized graphitic carbon nitride by an extremely facile K2CO3-activation approach

doi:10.1016/j.apcatb.2018.03.076

	Remarkably enhanced H-2 evolution activity of oxidized graphitic carbon nitride by an extremely facile K2CO3-activation approach
	Tian, Jianjian 1; Zhang, Lingxia ; Wang, Min 1,2; Jin, Xixiong 1; Zhou, Yajun 2; Liu, Jianjun ; Shi, Jianlin
刊名	APPLIED CATALYSIS B-ENVIRONMENTAL
	2018
卷号	232 页码:322
关键词	g-C3N4 Oxygen species Photocatalysis Hydrogen evolution Visible light
ISSN号	0926-3373
DOI	10.1016/j.apcatb.2018.03.076
英文摘要	The photocatalytic activity enhancement of graphitic carbon nitride (g-C3N4) in water splitting were commonly achieved by introducing various functional groups onto/into its planar structure. Herein, oxidized g-C3N4 (CNO) was prepared via an extremely facile K2CO3 activation approach. The high-resolution XPS spectra and solid-state C-13 NMR spectra confirmed the successful introduction of O-containing groups and O atoms were inherited the original molecular framework of g-C3N4, but exhibited effectively enlarged bonded with C atoms rather than N atoms in the tri-s-triazine structure of g-C3N4. CNO inherited the original molecular framework of g-C3N4, but exhibited effectively enlarged surface area and enhanced visible light absorption, and more attrractively, the band structure of g-C3N4 could be well-tuned with the introduction of oxygen species. Importantly, the surface O-containing moieties could strongly interact with cocatalyst Pt and thus remarkably promote interfacial electron transfer and consequent photo-generated charge carrier separation. Consequently, the as-obtained CNO exhibited the remarkably enhanced photocatalytic performance with a H-2 evolution rate of 199.7 mu mol h(-1), which is 9 times that of g-C3N4 (22.2 mu mol h(-1)).
学科主题	Chemistry, Physical ; Engineering, Environmental ; Engineering, Chemical
出版者	ELSEVIER SCIENCE BV
WOS记录号	WOS:000434004300035
资助机构	We acknowledge financial supports from the National Key Basic Research Program of China (2013CB933200). We thank Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM). ; We acknowledge financial supports from the National Key Basic Research Program of China (2013CB933200). We thank Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM).
内容类型	期刊论文
源URL	[http://ir.sic.ac.cn/handle/331005/24674]
专题	中国科学院上海硅酸盐研究所
作者单位	1.Chinese Acad Sci, Shanghai Inst Ceram, State Key Lab High Performance Ceram & Superfine, 1295 Dingxi Rd, Shanghai 200050, Peoples R China 2.Univ Chinese Acad Sci, 19A Yuquan Rd, Beijing 100049, Peoples R China 3.East China Univ Sci & Technol, Sch Mat Sci & Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China
推荐引用方式 GB/T 7714	Tian, Jianjian,Zhang, Lingxia,Wang, Min,et al. Remarkably enhanced H-2 evolution activity of oxidized graphitic carbon nitride by an extremely facile K2CO3-activation approach[J]. APPLIED CATALYSIS B-ENVIRONMENTAL,2018,232:322, 329.
APA	Tian, Jianjian.,Zhang, Lingxia.,Wang, Min.,Jin, Xixiong.,Zhou, Yajun.,...&Shi, Jianlin.(2018).Remarkably enhanced H-2 evolution activity of oxidized graphitic carbon nitride by an extremely facile K2CO3-activation approach.APPLIED CATALYSIS B-ENVIRONMENTAL,232,322.
MLA	Tian, Jianjian,et al."Remarkably enhanced H-2 evolution activity of oxidized graphitic carbon nitride by an extremely facile K2CO3-activation approach".APPLIED CATALYSIS B-ENVIRONMENTAL 232(2018):322.