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

文献类型：期刊论文

作者Jing, Jiangping1,2,3; Chen, Zhuoyuan1,2,3; Feng, Chang2
刊名ELECTROCHIMICA ACTA
出版日期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
DOI10.1016/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
WOS记录号WOS:000455642500054
出版者PERGAMON-ELSEVIER SCIENCE LTD
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.

入库方式： OAI收割

来源：海洋研究所

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