Preparation of Li-doped graphitic carbon nitride with enhanced visible-light photoactivity

被引：19
|
作者：
Ge, Zhitong [1 ]
Yu, Anchi [1 ]
Lu, Rong [1 ]
机构：
[1] Renmin Univ China, Dept Chem, Beijing 100872, Peoples R China
来源：
MATERIALS LETTERS | 2019年 / 250卷
基金：
中国国家自然科学基金;
关键词：
Graphitic carbon nitride; Semiconductors; Solar energy materials; Li doping; Visible-light absorption; Photocatalysis; HYDROGEN-PRODUCTION; G-C3N4; PHOTOCATALYSTS; EVOLUTION;
D O I：
10.1016/j.matlet.2019.04.099
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
A Li-doped graphitic carbon nitride (g-CNLi) was synthesized through a two-step method including the first ionothermal route and the following H2O2 treatment. Characterizations indicate that the crystal structure of g-CNLi resembles the intermediate without H(2)O(2 )treatment. However, compared to pristine graphitic carbon nitride (g-CN), g-(CNLi )presents significantly visible-light absorption enhancement. As a consequence, the photodegradation of methylene blue by g-CNLi is greatly improved under visible-light irradiation. Furthermore, Li atoms doping into g-CN might be responsible for the optical property of g-CNLi. The present work could provide a new insight into optimizing photocatalyst for efficient solar light utilization. (C) 2019 Elsevier B.V. All rights reserved.
引用
收藏
页码：9 / 11
页数：3
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