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Efficient Combination of G-C3N4 and CDs for Enhanced Photocatalytic Performance: A Review of Synthesis, Strategies, and Applications
Small ( IF 13.0 ) Pub Date : 2021-03-08 , DOI: 10.1002/smll.202007523 Lin Ai 1 , Run Shi 2 , Jie Yang 1 , Kan Zhang 3 , Tierui Zhang 2 , Siyu Lu 1
Small ( IF 13.0 ) Pub Date : 2021-03-08 , DOI: 10.1002/smll.202007523 Lin Ai 1 , Run Shi 2 , Jie Yang 1 , Kan Zhang 3 , Tierui Zhang 2 , Siyu Lu 1
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Recently, heterogeneous photocatalysts have achieved much interest on account of their great potential applications in resolving many tough energy and environmental troubles around the world through an ecologically sustainable way. Heterogeneous nanocomposites composed of graphitic carbon nitride (g-C3N4) and carbon dots (CDs) possess broad spectrum absorption, appropriate electronic band structures, rapid carrier mobility, abundant reserves, excellent chemical stability, and facile synthesis methods, which make them promising composite photocatalysts for suitable applications such as photocatalytic solar fuels production and contaminant decomposition. With the rapid development in photocatalysis by hybridization of g-C3N4 and CDs, a systematic summary and prospection of performance improvement are urgent and meaningful. This review first focuses on various kinds of effectively synthetic methods of composites. Following, the strategies available for enhanced performance, including morphology optimization, spectral absorption improvement, ternary or quaternary composition hybrid, lateral or vertical heterostructures construction, heteroatom doping, and so forth, are fully discussed. Then, the applications mainly in efficient photocatalytic hydrogen generation, photocatalytic carbon dioxide reduction, and organic pollutants degradation are systematically demonstrated. Finally, the remaining issues and prospect of further development are proposed as some kind of guidance for powerful combination of g-C3N4 and CDs with high efficiency to photocatalysis.
中文翻译：
G-C3N4 和 CD 的有效组合以提高光催化性能：合成、策略和应用综述
近年来，多相光催化剂因其在通过生态可持续的方式解决世界范围内许多棘手的能源和环境问题方面的巨大潜在应用而引起了广泛关注。由石墨氮化碳 (gC 3 N 4 ) 和碳点 (CDs)组成的非均相纳米复合材料具有广谱吸收、合适的电子能带结构、快速的载流子迁移率、丰富的储量、优异的化学稳定性和简便的合成方法，使其成为一种很有前景的复合材料适合应用的光催化剂，例如光催化太阳能燃料生产和污染物分解。随着gC 3 N 4杂化光催化的快速发展和CD，对绩效改进的系统总结和展望是紧迫而有意义的。本综述首先关注复合材料的各种有效合成方法。接下来，充分讨论了可用于增强性能的策略，包括形态优化、光谱吸收改进、三元或四元混合、横向或垂直异质结构构建、杂原子掺杂等。然后，系统地展示了主要在高效光催化制氢、光催化二氧化碳还原和有机污染物降解方面的应用。最后提出了存在的问题和进一步发展的前景，作为gC 3 N 4强强组合的某种指导。 和光催化效率高的CD。
更新日期：2021-03-08
中文翻译：
G-C3N4 和 CD 的有效组合以提高光催化性能：合成、策略和应用综述
近年来，多相光催化剂因其在通过生态可持续的方式解决世界范围内许多棘手的能源和环境问题方面的巨大潜在应用而引起了广泛关注。由石墨氮化碳 (gC 3 N 4 ) 和碳点 (CDs)组成的非均相纳米复合材料具有广谱吸收、合适的电子能带结构、快速的载流子迁移率、丰富的储量、优异的化学稳定性和简便的合成方法，使其成为一种很有前景的复合材料适合应用的光催化剂，例如光催化太阳能燃料生产和污染物分解。随着gC 3 N 4杂化光催化的快速发展和CD，对绩效改进的系统总结和展望是紧迫而有意义的。本综述首先关注复合材料的各种有效合成方法。接下来，充分讨论了可用于增强性能的策略，包括形态优化、光谱吸收改进、三元或四元混合、横向或垂直异质结构构建、杂原子掺杂等。然后，系统地展示了主要在高效光催化制氢、光催化二氧化碳还原和有机污染物降解方面的应用。最后提出了存在的问题和进一步发展的前景，作为gC 3 N 4强强组合的某种指导。 和光催化效率高的CD。
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