【摘要】 纳米TiO2主要用于中低浓度废水处理、小空间空气净化料表面自清洁、重金属回收、固体废物处理等领域,与传统除污工艺相比,具有无毒、安全、稳定性好、催化活性高、见效快、能耗低、可重复使用等优点,纳米TiO2是近年来环保领域中研究最多、最具发展前景的高新技术材料之一。介绍了纳米TiO2的光催化机理,概述了光催化技术在处理含油废水、含药废水、印染废水、造纸废水、含氮有机废水、氯代有机废水、含酚废水等方面的最新应用研究进展,指出了其在废水处理中还存在阳光效率低、回收再利用困难、降解效率有限等问题。更多还原

【Abstract】 Nano TiO2 is mainly used in the low concentration wastewater disposing,small space air purification surface clean,and heavy metal solid waste stuff dirposing,comparing to traditional remove-pollution technology,Nano TiO2 has the advagtages of nontoxic,security,good stability,high catalytic activity,fast work,low energy consumption,and repeat using,Nano TiO2 is one of the high-tech materials most researched in the field of environment protect recent years and it has the best development prospect.This article discussed the light catalytic theory and its progress of the applieation in oil-was tewater,drug-wastewater,dyeing wastewater,paper-making wastewater,nitrogen-organic wastewater,chlorine organic wastewater and phenol disposing,and prosposed the problems of low efficioncy,difficult recovery and limit degradation efficiency in wastewater disposing.更多还原