Dramatically enhanced photoelectrochemical properties and transformed p/n type of g-C3N4 caused by K and I co-doping

doi:10.1016/j.electacta.2018.12.015

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	Dramatically enhanced photoelectrochemical properties and transformed p/n type of g-C3N4 caused by K and I co-doping
	Jing, Jiangping 1,2,3; Chen, Zhuoyuan 1,2,3; Feng, Chang 2
刊名	ELECTROCHIMICA ACTA
	2019-02-20
卷号	297 页码:488-496
关键词	Graphitic carbon nitride p/n type Fermi level K&I co-doping Photoelectrochemical performance
ISSN号	0013-4686
DOI	10.1016/j.electacta.2018.12.015
通讯作者	Chen, Zhuoyuan(zychen@qdio.ac.cn)
英文摘要	Graphitic carbon nitride (g-C3N4) usually shows amphoteric property in a neutral solution. In this work, a K&I co-doped g-C3N4 is prepared by simply sintering the mixture of dicyandiamine, KI and I-2. The K&I co-doping modulates the band structure of g-C3N4 with pulling the Fermi level toward its conduction band minimum. The obtained K&I co-doped g-C3N4 (K&I-C3N4) generates positive photocurrents over the whole investigated potential range, exhibiting a typical n-type semiconductor characteristic. Therefore, the K&I co-doping transforms the g-C3N4 from amphoteric to n-type semiconductor. Also, the prepared K&I-C3N4 shows widened light absorption range and enhanced separation efficiency of the photogenerated charge carriers, which results in the dramatically enhanced photoelectrochemical performance. (C) 2018 Elsevier Ltd. All rights reserved.
资助项目	National Natural Science Foundation of China[41576114] ; National Natural Science Foundation of China[41376126] ; Qingdao Innovative Leading Talent Foundation[15-10-3-15-(39)-zch] ; Qingdao Science and Technology Achievement Transformation Guidance Plan (Applied Basic Research)[14-2-4-4-jch] ; State Key Laboratory for Marine Corrosion and Protection, Luoyang Ship Material Research Institute, China[614290101011703]
WOS研究方向	Electrochemistry
语种	英语
出版者	PERGAMON-ELSEVIER SCIENCE LTD
WOS记录号	WOS:000455642500054
内容类型	期刊论文
源URL	[http://ir.qdio.ac.cn/handle/337002/160697]
专题	海洋研究所_海洋腐蚀与防护研究发展中心
通讯作者	Chen, Zhuoyuan
作者单位	1.Chinese Acad Sci, Inst Oceanol, Key Lab Marine Environm Corros & Biofouling, 7 Nanhai Rd, Qingdao 266071, Peoples R China 2.Luoyang Ship Mat Res Inst, State Key Lab Marine Corros & Protect, Wenhai Rd, Qingdao 266237, Peoples R China 3.Chinese Acad Sci, Ctr Ocean Mega Sci, 7 Nanhai Rd, Qingdao 266071, Peoples R China
推荐引用方式 GB/T 7714	Jing, Jiangping,Chen, Zhuoyuan,Feng, Chang. Dramatically enhanced photoelectrochemical properties and transformed p/n type of g-C3N4 caused by K and I co-doping[J]. ELECTROCHIMICA ACTA,2019,297:488-496.
APA	Jing, Jiangping,Chen, Zhuoyuan,&Feng, Chang.(2019).Dramatically enhanced photoelectrochemical properties and transformed p/n type of g-C3N4 caused by K and I co-doping.ELECTROCHIMICA ACTA,297,488-496.
MLA	Jing, Jiangping,et al."Dramatically enhanced photoelectrochemical properties and transformed p/n type of g-C3N4 caused by K and I co-doping".ELECTROCHIMICA ACTA 297(2019):488-496.