摘要
石墨相氮化碳(g-C3N4)是一种极具发展前景的无金属光催化剂,可应用于多种途径。它的制备方法简单、成本低且稳定性好以及合适的能带结构等优点,在污染物降解和清洁能源方面备受关注,但是其自身存在光生电子和空穴易复合、光吸收范围较窄以及较低的比表面积等缺点,使其在光催化性能方面不够理想。本文针对g-C3N4在光催化方面的应用,重点综述了元素掺杂、异质结构筑和形貌控制三个方面来提高石墨相氮化碳(g-C3N4)的光催化性能。
Graphite phase carbon nitride (g-C3N4) is a promising metal-free photocatalyst, which can be ap-plied in many ways. It has the advantages of simple preparation method, low cost, good stability, and suitable energy band structure. It has attracted much attention in pollutant degradation and clean energy, but it has photo-generated electrons and holes. The shortcomings of easy recombination, narrow light absorption range and low specific surface area make it unsatisfactory in terms of photocatalytic performance. This article focuses on the application of g-C3N4 in photocatalysis, focusing on three aspects of element doping, heterojunction composite and shape control to improve the photocatalytic performance of graphite phase carbon nitride (g-C3N4).
出处
《材料科学》
CAS
2021年第12期1271-1283,共13页
Material Sciences
