摘要
作为一种可见光响应的半导体聚合物光催化剂,石墨相氮化碳(g-C3N4)在抑制环境污染和解决能源短缺方面具有广阔的应用前景。然而,传统方法合成的g-C3N4光催化剂比表面积小、禁带宽度大、光生电子-空穴易于复合,抑制了其光催化活性,需要对其进行改性来提高光催化能力。在介绍g-C3N4的制备方法的基础上,综述了g-C3N4在元素掺杂、构建有效晶面复合的异质结或纳米复合物及构建等离子体等光催化剂改性方面的研究进展。
As a semiconductor polymeric photocatalyst in response to visible light,graphtic carbon nitride (g-C 3N 4) has a broad application prospect in restraining environmental pollution and solving energy shortage.However,g-C 3N 4 synthesized by trational methods has small specific surface area,large band gap width,and its photo-generated electron- hole pairs recombine severely ,which inhibit its photocatalytic activity and require modification to improve its photocatalytic capacity.This review aims at summarizing recent advances in the preparation method and the modification of g-C 3N 4 photocatalyst,including element doping,construction of effective crystal surface composite heterojunction and nanocomposite and construction of plasma.
作者
汤梦瑶
陆紫馨
徐晨
丁逸
孟洋洋
张惠芳
Tang Mengyao;Lu Zixin;Xu Chen;Ding Yi;Meng Yangyang;Zhang Huifang(College of Environmental Engineering,Xuzhou Institute of Technology,Xuzhou 221000,China)
出处
《山东化工》
CAS
2019年第14期78-80,共3页
Shandong Chemical Industry
基金
徐州工程学院校级科研项目(XKY2016231)
徐州工程学院大学生创新训练计划项目(XCX2017158)
关键词
g-C3N4
光催化
制备方法
改性
g-C 3N 4
Preparation method
photocatalysis
modification
