TeO_2掺杂TiO_2催化超声降解甲基橙溶液的研究  

Ultrasonic Degradation of Methyl Orange Solution Using TeO_2-Doping TiO_2 as Catalyst

作　　者：王君[1] 佟健[2] 张向东[1] 韩建涛[1] 张鹏[2] 赵迪[3] 

机构地区：[1]辽宁大学化学系 [2]辽宁大学分析测试中心 [3]辽宁大学环境科学系,沈阳110036

出　　处：《环境科学与技术》2004年第5期13-14,53,共3页Environmental Science & Technology

摘　　要：采用自制的TeO2 掺杂TiO2 作为催化剂 ,研究了各种因素对TeO2 掺杂TiO2 催化超声降解甲基橙的影响。研究结果表明在TeO2掺杂TiO2 作用下超声降解甲基橙的效果明显优于非掺杂TiO2 的情况。 1 .5 %掺杂的催化剂用量在 1 .5～ 2 .0g/L之间 ,超声波频率 2 5kHz,输出功率 1 .0w/cm2 ,pH为 1 .0～ 3 .0时 ,初始浓度 2 0mg/L的条件 ,80min基本可全部降解 ,COD的去除率也达到了 99.0 %。Different affecting factors were studied on ultrasonic degradation of methyl orange in the presence of TeO_2-doping TiO_2 as a catalyst in the laboratory. The experimental results indicated that TeO_2-doping TiO_2 catalyst greatly enhanced the ultrasonic degradation: degradation rate of 100% for methyl orange and 99.0% removal for COD respectively. Optimum conditions for the ultrasonic degradation were studied in terms of reaction time, catalyst dosage, ultrasonic frequency and power input, and pH of the solution.

关 键 词：甲基橙 超声降解 TeO2掺杂 TIO2催化剂 

分 类 号：O611.4[理学—无机化学]