石墨相g-C_3N_4聚合物半导体光催化剂

Graphitic Carbon Nitride Polymeric Semiconductor Photocatalyst

半导体光催化技术通过太阳能驱动化学反应净化水体、处理土壤和空气污染物、催化制氢,在解决环境污染和能源短缺等问题上具有重要的应用前景。在光催化技术的推广应用过程中,一种仅由C、N两种元素通过sp^2杂化组成的共轭半导体氮化碳,因其独特的半导体能带结构和优异的化学稳定性,被作为一类不含金属成分的新型可见光催化剂,引起人们的广泛关注。本文介绍石墨相氮化碳的结构、性质及其在光催化领域的一些研究进展。

Semiconductor photocatalysis could drive photocatalytic oxidation-reduction reactions to purify water, remove pollutions in soil and air, catalytic hydrogen production via sunlight. Semiconductor photocatalytic technology was regarded as a effective path to deal with the problem o f environment pollution and energy shortage, In the process of application of photocatalysis technology, conjugated graphitic carbon nitride was a new type of visible light catalyst, only consisted of C and N metal-free elements which through sp^2 hybridization. g-C3N4 was widely used owing to the fact of unique semiconductor band structure and excellent chemical stability. In this paper, g-C3N4 was described around structure, properties and research progress in photocatalytic field.