光催化
分解水
氮化碳
材料科学
光催化分解水
氮化物
石墨氮化碳
碳纤维
半导体
表面改性
纳米技术
氢
化学工程
催化作用
化学
光电子学
复合材料
有机化学
复合数
生物化学
图层(电子)
工程类
作者
Jinbao Chen,Ningxin Kang,Jiajie Fan,Chunshan Lu,Kangle Lv
标识
DOI:10.1016/j.mtchem.2022.101028
摘要
Semiconductor photocatalysis provides a sustainable way to solve the problems of energy crisis and environmental pollution. As a typical visible-light-response organic semiconductor photocatalyst, however, bulk carbon nitride suffers from poor photoreactivity due to the quick recombination of electron–hole pairs, low specific surface area, and weak light absorption property, which severely hampers its practical applications. This review summarizes the recent progresses of carbon nitride based photocatalysis for water splitting to produce hydrogen gas (H2) and hydrogen peroxide (H2O2). The strategies to improve the photoreactivity of carbon nitride from the aspects of the charge separation and light absorption are highlighted, which include cocatalysts modification, morphological control, crystallinity enhancement, element doping, semiconductor coupling, and surface functionalization. At last, the remaining challenges are analyzed, and the future developments of carbon nitride for photocatalytic water splitting were prospected.
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