g-C3N4/Ag基二元复合光催化剂降解环境污染物的研究进展

摘要/Abstract

摘要： 光催化技术在太阳能资源利用方面呈现出良好的应用前景,已受到世界各国的广泛关注。g-C₃N₄是一种二维结构的非金属聚合物型半导体材料,具有合成简单、成本低、化学性质稳定、无毒等特点,在环境修复和能量转化方面应用潜力较大。但g-C₃N₄存在对可见光吸收能力差、比表面积小和光生载流子复合速率高等缺点,限制了其实际应用。构筑异质结光催化剂是提高光催化效率的有效途径之一。基于Ag基材料的特点,前人对g-C₃N₄/Ag基二元复合光催化剂进行了大量研究, 并取得显著成果。本文总结了近年来AgX(X=Cl,Br,I)/g-C₃N₄、Ag₃PO₄/g-C₃N₄、Ag₂CO₃/g-C₃N₄、Ag₃VO₄/g-C₃N₄、Ag₂CrO₄/g-C₃N₄、Ag₂O/g-C₃N₄和Ag₂MoO₄/g-C₃N₄复合光催化剂降解环境污染物的研究进展,并评述了g-C₃N₄/Ag基二元复合光催化剂目前面临的主要挑战,展望了其未来发展趋势。

关键词: g-C₃N₄, Ag基材料, 二元复合光催化剂, 光催化性能, 环境污染物

Abstract: Photocatalysis technology shows a good application prospect in the utilization of solar energy resource and has attracted worldwide attention. g-C₃N₄ is a two-dimensional polymeric metal-free semiconductor material with the characteristics of facile synthesis, low cost, high chemical stability and non-toxicity, which has great potential in environmental remediation and energy conversion. However, g-C₃N₄ has the drawbacks of poor visible light absorption capacity, low specific surface area and high recombination rate of photogenerated charge carriers, which limits its practical application. Constructing heterojunction photocatalyst has become one of effective pathways for boosting photocatalytic efficiency. Based on the inherent merits of Ag-based materials, a lot of researches have been carried out on g-C₃N₄/Ag-based binary photocatalysts and prominent results have been achieved. Recent advances on AgX (X=Cl, Br, I)/g-C₃N₄, Ag₃PO₄/g-C₃N₄, Ag₂CO₃/g-C₃N₄, Ag₃VO₄/g-C₃N₄, Ag₂CrO₄/g-C₃N₄, Ag₂O/g-C₃N₄ and Ag₂MoO₄/g-C₃N₄ composite photocatalysts for the degradation of environmental pollutants were summarized. The major challenges of g-C₃N₄/Ag-based binary composite photocatalysts were reviewed and the future development trends were also forecast.

Key words: g-C₃N₄, Ag-based material, binary composite photocatalyst, photocatalytic performance, environmental pollutant

中图分类号:

TQ426

柏林洋, 蔡照胜. g-C₃N₄/Ag基二元复合光催化剂降解环境污染物的研究进展[J]. 硅酸盐通报, 2023, 42(10): 3755-3763.

BAI Linyang, CAI Zhaosheng. Research Progress on g-C₃N₄/Ag-Based Binary Composite Photocatalysts for Degradation of Environmental Pollutants[J]. BULLETIN OF THE CHINESE CERAMIC SOCIETY, 2023, 42(10): 3755-3763.

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g-C₃N₄/Ag基二元复合光催化剂降解环境污染物的研究进展

Research Progress on g-C₃N₄/Ag-Based Binary Composite Photocatalysts for Degradation of Environmental Pollutants

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