改性TiO_(2)在光电协同下处理偶氮染料废水的研究进展

Research Progress in the Treatment of AZO Dye Wastewater byModified TiO_(2) with Photoelectric Coordination

偶氮染料(AZO)是一类难被生物降解的水溶性高分子有机物,近些年来,由于良好的染色性能被广泛应用于印染等相关行业,但AZO废水一旦排入自然水体将会造成重大的环境污染问题。本文主要介绍了不同类型的改性TiO_(2)对AOZ废水的处理效果并分析了作用原理,对比分析了单一TiO_(2)与改性TiO_(2)的优缺点,积极探索改性TiO_(2)催化剂的催化机理,解析金属和非金属掺杂在其中的具体作用,为今后更加精准地控制掺杂金属或者非金属比例、提高催化剂效率提供科学依据和技术支持。

AZO dyes(AZO)are a kind of water-soluble organic compounds that are difficult to biodegrade.In recent years,AZO dyes have been widely used in printing and dyeing industries because of their good dyeing properties.However,once AZO wastewater is discharged into natural water bodies,it will cause significant environmental pollution.This paper mainly introduced the treatment effect of different types of modified TiO_(2) on AOZ wastewater and analyzed the action principle,compared and analyzed the advantages and disadvantages of single TiO_(2) and modified TiO_(2),actively explored the catalytic mechanism of modified TiO_(2) catalyst,and analyzed the specific role of metal and non-metal doping in it.It provides scientific basis and technical support for controlling the proportion of doped metal or non-metal more accurately and improving the efficiency of catalyst in the future.