文档介绍：Ag掺杂二氧化钛纳米管光催化降解甲基橙及百草枯废水的研究
(姓名:王克鹏)
(吉林师范大学环境工程学院09级3班吉林四平 136000)
指导教师:车广波(副教授)
摘要:以钛酸四丁酯、硝酸银为原料,利用水热法制备银掺杂二氧化钛纳米管,通过处理模拟的甲基橙废水评估其光催化性能。实验探讨了制备条件(掺杂量,煅烧温度)和光催化条件(添加量、光源、光照时间等)等对其光催化性能的影响。结果表明:%Ag(摩尔分数),煅烧温度500℃制得的Ag-TNT具有较高的光催化活性,, %,动力学分析表明符合动力学一级规律动力学方程为Ln(C0/CT)=- (R2 =)。又进一步用其处理百草枯模拟废水,结果表明:, %,动力学分析表明符合动力学一级规律,动力学方程为Ln(C0/CT)=+ (R2 =)。
关键词:光催化,钛酸盐纳米管,银,掺杂量,温度,加入量
The study of Ag-TNTS photocatalytic degradation of methyl orange and paraquat wastewater
Wang Ke-peng
(Class 3 Grade 4 in College of Environmental Engineering,Jilin Normal University,JilinSiping136000)
Directive teacher: CHe Guang-bo(associate professor)
Abstract:Abstract: Using tetrabutyl titanate, silver nitrate as raw materials and hydrothermal method to prepare Ag-TNTs, and through the simulation of methyl orange wastewater treatment to evaluate its photocatalytic experiment discusses the influence on its photocatalytic performance from the preparation conditions (doping quantity, calcination temperature) and light catalytic conditions (adding amount, light source, illumination time, etc.) and so results show that the doped with % Ag (mole fraction), calcination temperature 500 ℃ of Ag - TNT has higher photocatalytic activity, adding the amount of g/L, and after 240 min of light to achieve % removal rate of methyl orange, and dynamics equation of dynamics analysis shows that the dynamic level rule for Ln (C0 / CT) = X - (R2 = ). And when using it to dispose the paraquat simulated wastewater treatment, the results show that adding g/L of quantity, after 210 min of light makes the paraquat removal rate reach %, dynamics analysis shows that the dynamic regularity, dynamic equations for the Ln (C0 / CT) = + X (R2 = ).
Key words: photocatalysis, titanate nanotubes and silver, the do