压电-光催化技术及其降解有机染料废水的研究进展  

Research Progress of Piezo-Photocatalysis and Its Application in Degradation of Organic Dye Wastewater

作　　者：宋生南 卓祖优 黄明堦[2] 卢贝丽 陈燕丹[1] Song Shengnan;Zhuo Zuyou;Huang Mingjie;Lu Beili;Chen Yandan(College of Material Engineering,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350108,China;College of Life Science,Fujian Agriculture and Forestry University,Fuzhou,Fujian 350002,China)

机构地区：[1]福建农林大学材料工程学院,福建福州350108 [2]福建农林大学生命科学学院,福建福州350002

出　　处：《绿色科技》2022年第20期86-94,98,共10页Journal of Green Science and Technology

基　　金：国家自然科学基金资助项目(编号:31870561、32171726)。

摘　　要：利用光催化技术去除有机污染物已广泛开展了研究,但其实际应用受到光生载流子迁移率低和快速复合的严重制约。由于机械力引起的压电势可以产生巨大的电场,为电荷能量转移或转移电子和空穴提供新的有效手段,受到压电效应的启发,研究者们将其与光催化组合到了一起,即“压电-光催化”技术。主要讨论了压电催化剂的压电性和压电势,以及压电催化中的机械能类型,对压电光催化的机理进行了全面的综述,系统地分析了压电光催化剂的电荷转移和催化机理。此外,还讨论了不同的压电光催化在降解水污染上的应用。展望了压电增强光催化反应的发展前景:今后,伴随在机理层面上对半导体性质与压电效应之间关系的不断深入研究,有望创制出可利用微小的震动、噪声等机械能的高效能压电或压电-光催化体系,用以实现有机染料废水的高效节能无害化处理。Photocatalysis is an environment-friendly chemical conversion technology, but its low carrier mobility and rapid recombination of electron hole pairs limit the development of photocatalysis technology. The piezoelectric potential caused by mechanical force can produce a huge electric field, which provides a new and effective means for charge energy transfer or electron and hole transfer.Inspired by piezoelectric effect, researchers combine it with photocatalysis, namely "piezoelectric-photocatalysis" technology. In this paper, the piezoelectric properties and piezoelectric potential of piezoelectric catalysts and the types of mechanical energy in piezoelectric catalysts are discussed.The mechanism of piezoelectric photocatalysis is reviewed comprehensively, and the charge transfer and catalytic mechanism of piezoelectric photocatalysts are analyzed systematically. In addition, the applications of different piezoelectric photocatalysis in the degradation of water pollution were also discussed. The development prospect of piezoelectric enhanced photocatalytic reaction is prospected. In the future, with the continuous in-depth study of the relationship between semiconductor properties and piezoelectric effect, it is expected to create a high-efficiency piezoelectric or piezoelectric photocatalysis system that can make sufficient use of benign mechanical energy such as vibration and noise to realize efficient, energy-saving and harmless treatment of organic dye wastewater.

关 键 词：光催化 压电效应 压电-光催化 染料废水降解 

分 类 号：X52[环境科学与工程—环境工程]