碘氧化铋光催化材料的研究进展

发布时间：2018-03-24 01:35

本文选题：碘氧化铋　切入点：光催化　出处：《中国材料进展》2017年01期

【摘要】：铋系半导体材料是一类重要的光催化材料,而碘氧化铋是其中带隙较窄的少数几种之一,其光吸收波长范围几乎覆盖全部可见光,具有较强的可见光响应性能。然而,这一优势没有得到充分利用,块体碘氧化铋的光催化性能并不理想,需要通过改性,使其光催化性能得到增强。由于碘氧化铋的层状结构在铋系光催化材料中非常具有代表性,几乎所有铋系光催化材料的改性增强策略都能用于碘氧化铋的改性,故其相关研究对于铋系光催化材料研究有较高的参考价值,引起了许多研究者的关注。为此,对近年来围绕碘氧化铋结构调控、形貌调控、复合和表面修饰等方面的改性研究进行综述,分析和总结改性处理在促进光吸收、载流子传输与分离、调控带隙结构等方面的作用机制,为新型可见光光催化材料的研究提供借鉴。
[Abstract]:Bismuth semiconductor material is an important kind of photocatalytic materials, iodine and bismuth oxide is a handful of them with a narrow band gap of the light absorption wavelength range covering almost all visible light, with strong visible light response. However, this advantage has not been fully utilized, the photocatalytic performance of iodine oxide block bismuth is not ideal, need through the modification, the photocatalytic performance is enhanced. The layered structure of iodine bismuth oxide is representative in bismuth based photocatalytic materials, almost all bismuth photocatalytic material modification strategy can be used for modification of iodine bismuth oxide, so the related research bismuth based photocatalytic materials have high reference value for, has attracted the attention of many researchers. Therefore, in recent years around the bismuth oxyiodide structure regulation, morphology control, composite and surface modification and other aspects of the modification research review, The mechanisms of modification in promoting light absorption, carrier transport and separation, and controlling the band gap structure are analyzed and summarized, providing reference for the research of new visible light photocatalytic materials.

【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】：科技部“973”项目(2013CB632402) 国家自然科学基金资助项目(51272199,51320105001,51372190,51472191,21433007,21407115)
【分类号】：O643.36

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