石墨氮化碳
光催化
氮化碳
可见光谱
材料科学
氮化物
碳纤维
光化学
化学工程
化学
纳米技术
催化作用
光电子学
有机化学
复合数
复合材料
工程类
图层(电子)
作者
Runping Jia,Yulin Zhang,Xiangjie Yang
标识
DOI:10.1016/j.ijhydene.2021.07.139
摘要
The development of highly efficient and visible-light responsive carbon nitride (CN) photocatalysts is desirable to address energy shortages and environmental pollution challenges. Herein, we synthesized novel 2-hydroxy-4,6-dimethylpyrimidine (HDMP) group and Ca2+ co-modified carbon nitride (CN) photocatalyst (CN-CAA) using a facile in situ copolymerization procedure employing urea and calcium acetylacetonate (CAA) as precursors. The HDMP group and Ca2+ co-modification contributed to increased electron density and modulated electronic structure, resulting in extended visible light harvesting and accelerated separation and migration of photoinduced charge carriers. Benefiting from the enhanced visible light utilization and improved photoexcited carriers separation and transportation, the CN-CAA exhibited significantly elevated visible-light-driven photocatalytic activity for CO2 reduction. This work provided a new insight into the photocatalytic performance promotion of CN through molecular engineering and metal ions incorporation co-modification.
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