银系半导体光催化材料研究进展

发布时间：2018-02-13 13:27

本文关键词： 银银系半导体光催化可见光　出处：《硅酸盐学报》2017年09期 　论文类型：期刊论文

【摘要】：银系半导体由于较窄的带隙和单质银的表面等离子体共振效应,普遍对可见光响应且具有理想的可见光光催化活性,在有机污染物降解、二氧化碳还原和杀毒灭菌等环境光催化领域具有广阔的应用前景。银离子可以与各种负离子或负离子基团形成种类繁多的银基卤化物、氧化物、硫化物和含氧酸盐等半导体光催化材料。银系半导体的光催化活性和稳定性高度取决于这些负离子或负离子基团的性质。综述了分别由卤族、硫族、氮族、碳族、硼族和过渡金属元素构成的负离子或负离子基团对银系半导体能带结构、光学吸收以及光催化活性的影响,探讨了提高银系半导体可见光光催化活性和稳定性的策略,并展望了未来的研究方向,从而有助于人们构建更高效的银系半导体光催化材料(体系)。
[Abstract]:Silver because of narrow band gap semiconductor and silver surface plasmon resonance effect, generally on the visible light photocatalytic activity of visible light response and is ideal, in the degradation of organic pollutants, carbon dioxide reduction and sterilization and other environmental photocatalysis field has broad application prospects. Silver ions can form a variety of silver halide and, all kinds of negative ion or negative ion group oxides, sulfides and oxysalt of semiconductor photocatalytic material. Silver semiconductor photocatalytic activity and stability is highly dependent on these negative ion or negative ion radical properties. Summarized respectively by halogen, sulfur, carbon, boron nitride, and transition the metal elements in the negative ion or negative ion group of silver semiconductor band structure, effects of optical absorption and photocatalytic activity, to improve the silver semiconductor visible light catalytic activity And the strategy of stability, and the future research direction, will help people to build more efficient silver semiconductor photocatalytic materials (system).

【作者单位】：武汉理工大学材料复合新技术国家重点实验室;长沙学院环境光催化应用技术湖南省重点实验室;
【基金】：国家“973”计划(2013CB632402) 国家自然科学基金(51320105001,51372190,51402025,21433007) 湖南省教育厅资助科研项目(16B027)资助
【分类号】：O643.36

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