Emerging heterostructured C3N4 photocatalysts for photocatalytic environmental pollutant elimination and sterilization,Inorganic Chemistry Frontiers

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Emerging heterostructured C3N4 photocatalysts for photocatalytic environmental pollutant elimination and sterilization
Inorganic Chemistry Frontiers ( IF 6.1 ) Pub Date : 2023-05-17 , DOI: 10.1039/d3qi00657c
Yang Ding ₁ , Chunhua Wang ₂ , Lang Pei ₁ , Soumyajit Maitra ₃ , Qinan Mao ₁ , Runtian Zheng ₄ , Meijiao Liu ₅ , Yun Hau Ng ₂ , Jiasong Zhong ₁ , Li-Hua Chen ₆ , Bao-Lian Su _{4,

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Affiliation

Photocatalysis is deemed a highly prominent technology to solve environmental problems such as pollution, CO₂ emission and bacterial contamination. As an important photocatalyst, g-C3N4 has attracted a great amount of attention in environmental remediation owing to its good stability, excellent light response, low cost and environmentally friendly properties. However, the pristine g-C3N4 photocatalyst generally suffers from serious photoinduced charge carrier recombination, poor surface active sites, and insufficient visible light harvesting, thereby leading to unsatisfactory photocatalytic performance. Heterostructured C₃N₄ photocatalysts have recently become a research focus in environmental fields thanks to their fast photoexcited electron–hole pair dissociation, broadened visible light response range, and sufficient photoredox capability. Herein, we critically review the up-to-date developments of heterostructured C₃N₄ photocatalysts in organic pollutant elimination, heavy metal ion reduction, CO₂ conversion and bacterial inactivation. Meanwhile, the strategies for constructing efficient C₃N₄ based heterostructures with enhanced environmental photocatalytic capability are thoroughly described, which should help readers to quickly acquire in-depth knowledge and to inspire new concepts in heterostructure engineering. Finally, the challenges and opportunities in fabricating heterostructured C₃N₄ photocatalysts for large-scale and commercial applications are discussed to give a clear study direction in this field.

中文翻译：

用于光催化环境污染物消除和灭菌的新兴异质结构 C3N4 光催化剂

光催化被认为是解决污染、CO ₂排放和细菌污染等环境问题的一项非常突出的技术。作为一种重要的光催化剂，g-C3N4以其良好的稳定性、优异的光响应、低成本和环境友好等优点在环境修复领域引起了广泛关注。然而，原始的g-C3N4光催化剂普遍存在光致载流子复合严重、表面活性位点差、可见光收集不足等问题，从而导致光催化性能不尽如人意。异质结构 C ₃ N ₄光催化剂由于其快速的光激发电子-空穴对解离、扩大的可见光响应范围和足够的光氧化还原能力，最近成为环境领域的研究热点。_{在此，我们批判性地回顾了异质结构 C 3} N ₄光催化剂在有机污染物消除、重金属离子还原、CO ₂转化和细菌灭活方面的最新进展。_{同时，构建高效C 3} N ₄的策略对具有增强的环境光催化能力的基于异质结构的材料进行了详尽的描述，这将有助于读者快速获得深入的知识并激发异质结构工程的新概念。最后，讨论了制造用于大规模和商业应用的异质结构 C ₃ N ₄光催化剂的挑战和机遇，以明确该领域的研究方向。

更新日期：2023-05-17

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