共掺杂改性TiO_(2)光催化剂的研究进展  

Research Progress of Co-doped TiO_(2) Photocatalyst

作　　者：刘静[1] 高正阳 王杰 陈霈儒 杨璐冰 LIU Jing;GAO Zhengyang;WANG Jie;CHEN Peiru;Yang Lubing(School of Municipal and Environmental Engineering,Shandong Jianzhu University,Jinan 250100,China;Shandong Engineering of Consulting Institute,Jinan 250014,China)

机构地区：[1]山东建筑大学市政与环境工程学院,济南250100 [2]山东省环科院环境工程有限公司,济南250014

出　　处：《材料导报》2021年第S01期42-47,共6页Materials Reports

摘　　要：TiO_(2)具备化学稳定性好、催化活性高、无污染、价格低廉等优点,在光催化领域有广阔的发展前景,但禁带宽度较大、可见光吸收能力差等缺点影响了TiO_(2)在生产生活中的推广利用。本文综述了共掺杂改性TiO_(2)在光催化领域的研究进展,介绍了纳米TiO_(2)的光催化机理,分析比较了金属与金属共掺杂、非金属与非金属共掺杂、金属与非金属共掺杂三种改性方式对TiO_(2)光催化性能的影响;指出共掺杂改性可以通过降低禁带宽度、产生可见光效应、抑制光生电子空穴复合等方式提高TiO_(2)的光催化活性;总结了有关共掺杂作用机理和离子间协同作用的研究成果,提出了当下共掺杂改性TiO_(2)研究存在的不足之处,并对今后的研究方向进行了展望。TiO_(2) has the advantages of good chemical stability,high catalytic activity,no pollution,and low price,and has broad development prospects in the field of photocatalysis.The bandgap of TiO_(2) affects its absorption of visible light,which is not conducive to the promotion and utilization of TiO_(2) in production and life.The research progress of co-doping modified TiO_(2) in the field of photocatalysis was reviewed and the photocatalysis mechanism of nano-TiO_(2) was introduced.The influences of different modification methods such as metal/metal co-doping,non-metal/non-metal co-doping and metal/non-metal co-doping on the photocatalytic properties of TiO_(2) were analyzed and compared.The co-doping modification can improve the photocatalytic activity of TiO_(2) by reducing the band gap,producing visible light effect and inhibiting the recombination of electron and hole.Finally,the research results of the mechanism of co-doping and the coordination between ions were summarized,the shortco-mings of the current research on co-doped TiO_(2) were pointed out,and the future research direction was put forward.

关 键 词：二氧化钛 共掺杂 催化剂 纳米材料 环境 

分 类 号：TQ034[化学工程]