Simultaneous Dual-Functional Photocatalysis by g-C3N4-Based Nanostructures

作者：Anise Akhundi, Alireza Zaker Moshfegh, Aziz Habibi‐Yangjeh, Mika E. T. Sillanpää · 发表于：ACS ES&T Engineering · 年份：2022 · DOI：10.1021/acsestengg.1c00346 · 被引用次数：226 · 研究领域：Advanced Photocatalysis Techniques、Perovskite Materials and Applications、Covalent Organic Framework Applications

Heterogeneous photocatalytic reactions have experienced many efforts in developing new materials to tackle environmental and energy crises through utilizing appropriate photocatalysts in wastewater treatment, H 2 generation, organic transformations, CO 2 reduction, N 2 photofixation, and biomass conversion. While these processes are addressed in the literature separately, a recent innovative viewpoint is to employ a photocatalytic system to achieve simultaneously two or more functions. The challenging point is that the combination of two functions in one photocatalytic system requires a novel design and engineering of an appropriate semiconductor photocatalyst with special characteristics for each application in a particular environment. Recently, graphitic carbon nitride (g-C 3 N 4 ) with its unique physicochemical properties has gained tremendous attention among researchers due to its great potential for utilization as a dual-functional photocatalyst. In this study, the role of morphological engineering and band gap manipulation in heterojunction formation of g-C 3 N 4 will be considered. These newly applied strategies are useful to improve the photocatalytic activity of g-C 3 N 4 in different simultaneous reactions. Furthermore, detailed information on the application of g-C 3 N 4 -based materials in dual-functional simultaneous processes will be discussed in different reactions: namely, (i) photocatalytic H 2 generation combined with oxidation of organic pollutants, (ii) ...