Emerging investigators series: advances and challenges of graphitic carbon nitride as a visible-light-responsive photocatalyst for sustainable water purification

Emerging investigators series: advances and challenges of graphitic carbon nitride as a visible-light-responsive photocatalyst for sustainable water purification
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新兴研究者系列:石墨氮化碳作为可见光响应光催化剂用于可持续水净化的进展和挑战

DOI:
10.1039/c7ew00159b
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发表时间:
2017
期刊:
Environ. Sci.: Water Res. Technol.
影响因子:
--
通讯作者:
Shuai, Danmeng
Shuai, Danmeng
中科院分区:
--
文献类型:
--
作者:
Zheng, Qinmin;Shen, Hongchen;Shuai, Danmeng

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石墨化碳氮化物(g-C3N4)是一种新兴的可见光响应型光催化剂,自2009年以来一直在探索。这种光催化剂具有高度可定制的结构和性能,使大部分太阳能的潜在利用成为可能。这种材料也是由地球上丰富的前体合成的,在化学和热稳定性上都是稳定的,并且生物相容性好,到目前为止还没有毒性的报道。G-C3N4的优点和开创性的性能评估表明,这种光催化剂有望降解包括化学品和病原体在内的持久性和新兴污染物,以减少能源和化学足迹,实现可持续的净水。从这一角度出发,我们提出并回答了与g-C3N4光催化净化水的开发和应用最相关的五个问题,包括优势和目前的障碍,从分子尺度上对g-C3N4性质和光催化性能的理解,到在实践中实现g-C3N4的工业规模光反应器设计。
Graphitic carbon nitride (g-C3N4) is an emerging visible-light-responsive photocatalyst that has been explored since 2009. This photocatalyst has highly tailorable structures and properties that enable potential utilization of a large portion of solar energy. This material is also synthesized from earth-abundant precursors, is chemically and thermally stable, and is biocompatible with no reported toxicity to date. The merits and pioneering performance evaluation of g-C3N4 indicate that this photocatalyst holds promise for the degradation of persistent and emerging contaminants, including chemicals and pathogens, for sustainable water purification with reduced energy and chemical footprint. In this perspective, we propose and answer five questions that are most relevant to the development and application of g-C3N4 for photocatalytic water purification, including both benefits and current barriers, from molecular-scale mechanistic understanding of g-C3N4 properties and photocatalytic performance to industrial-scale photoreactor design for g-C3N4 implementation in practice.
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