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CLC number: O643.3

On-line Access: 2021-06-16

Received: 2020-08-26

Revision Accepted: 2021-01-11

Crosschecked: 2021-08-26

Cited: 0

Clicked: 2595

Citations:  Bibtex RefMan EndNote GB/T7714

 ORCID:

Hui Zhang

https://orcid.org/0000-0002-0591-2098

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Journal of Zhejiang University SCIENCE A 2021 Vol.22 No.9 P.751-759

http://doi.org/10.1631/jzus.A2000386


Carbon self-doped polytriazine imide nanotubes with optimized electronic structure for enhanced photocatalytic activity


Author(s):  Hui Zhang, Zhen Yang, Yu-qi Cao, Zhi-gang Mou, Xin Cao, Jian-hua Sun

Affiliation(s):  School of Chemistry and Environmental Engineering, Institute of Advanced Functional Materials for Energy, Jiangsu University of Technology, Changzhou 213001, China

Corresponding email(s):   caoxin@jsut.edu.cn, sunjh@jsut.edu.cn

Key Words:  Polytriazine imide (PTI), Photocatalysis, Hydrogen evolution, Tetracycline degradation


Hui Zhang, Zhen Yang, Yu-qi Cao, Zhi-gang Mou, Xin Cao, Jian-hua Sun. Carbon self-doped polytriazine imide nanotubes with optimized electronic structure for enhanced photocatalytic activity[J]. Journal of Zhejiang University Science A, 2021, 22(9): 751-759.

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author="Hui Zhang, Zhen Yang, Yu-qi Cao, Zhi-gang Mou, Xin Cao, Jian-hua Sun",
journal="Journal of Zhejiang University Science A",
volume="22",
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pages="751-759",
year="2021",
publisher="Zhejiang University Press & Springer",
doi="10.1631/jzus.A2000386"
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%T Carbon self-doped polytriazine imide nanotubes with optimized electronic structure for enhanced photocatalytic activity
%A Hui Zhang
%A Zhen Yang
%A Yu-qi Cao
%A Zhi-gang Mou
%A Xin Cao
%A Jian-hua Sun
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%I Zhejiang University Press & Springer
%DOI 10.1631/jzus.A2000386

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T1 - Carbon self-doped polytriazine imide nanotubes with optimized electronic structure for enhanced photocatalytic activity
A1 - Hui Zhang
A1 - Zhen Yang
A1 - Yu-qi Cao
A1 - Zhi-gang Mou
A1 - Xin Cao
A1 - Jian-hua Sun
J0 - Journal of Zhejiang University Science A
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DOI - 10.1631/jzus.A2000386


Abstract: 
The triazine-based carbon nitride known as polytriazine imide (PTI) is a metal-free semiconductor photocatalyst but usually shows moderate activity due to its limited charge transfer mobility. Here, carbon self-doped PTI (C-PTI) was prepared via a facile and green method by using glucose as the carbon source. In the condensation process, glucose can promote nanotube formation, giving the product larger surface areas. Moreover, carbon self-doping induces an intrinsic change in the electronic structure, thus optimizing the band structure and the electronic transport property. Therefore, the as-synthesized C-PTI exhibits remarkably enhanced photocatalytic activities for both hydrogen evolution and tetracycline degradation reactions.

碳自掺杂聚三嗪亚胺纳米管的电子结构优化及其光催化产氢和降解四环素性能

目的:聚三嗪亚胺(PTI)较小的共轭体系导致其光生电荷转移受限,光催化活性较低.本文旨在通过碳自掺杂来优化PTI的电子结构,提升电荷传递效率,以提高体系光催化活性.
创新点:1. 通过碳自掺杂提高产物C-PTI的比表面积,优化其电子结构,提升电荷传递效率;2. 提高C-PTI的光催化分解水产氢和光催化降解四环素的活性.
方法:1. 采用X射线衍射、X射线光电子能谱、扫描电镜、透射电镜、紫外-可见漫反射光谱等手段对产物进行表征和能带结构研究;2. 通过光电化学测试和荧光发射光谱,研究产物中光生电荷的分离和传递效率;3. 通过光催化分解水产氢和光催化降解四环素的实验,评价产物的光催化性能.
结论:1. 以葡萄糖为碳源,采用一种绿色简便的方法成功制备了碳自掺杂PTI光催化剂;2. 碳自掺杂使产物具有更大的比表面积、更负的导带位置、更正的价带位置以及更高的电荷传递效率;3. 合成的C-PTI在光催化分解水产氢和光催化降解四环素的反应中都表现出更高的活性.

关键词:PTI;光催化;产氢;降解四环素

Darkslateblue:Affiliate; Royal Blue:Author; Turquoise:Article

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