摘要
以纳米TiO_2作催化剂、H_2O_2为氧化剂,在80W紫外光灯的照射下研究了光催化-化学氧化法对罗丹明B的协同降解效应。结果表明:纳米TiO_2对罗丹明B溶液具有一定的降解效果,在实验中添加适量的H_2O_2溶液会有效提高罗丹明B的脱色率,纳米TiO_2和H_2O_2的投加量以及处理时间对罗丹明B的脱色效果有明显影响,当罗丹明B的初始浓度为10mg/L时,加入1.0mL、35%的H_2O_2溶液以及1.5mg纳米TiO_2,催化反应2h后,罗丹明B溶液的脱色率达到了98.3%。
This article studies the synergistic degeneration effects of Rodamine B by using photocatalysis and chemical Oxidation treatment. This experiment uses nano--TiO2 as catalyst and H2 02 as oxidant under the 80W ultraviolet ray lamp illumination. The result indicates that nanometer TiO2 has certain degeneration effect on Rodamine B. In the experiment, adding sufficit quantum of H2 02 solution could effectively enhance the percent of. decolorating Rodamine B. The Nanometer TiO2 , H202 and the processing time have the obvious influences on the effect of decolorating Rodamine B. When the initial density of Rodamine B is 10mg/1, dosage of 35% H202 solution is 0.5ml and dosage of nanometer TiO2 is 1.5mg, after reaction for two hours, the percent of decolorization has reached 98.3%.
出处
《绿色科技》
2013年第8期231-233,共3页
Journal of Green Science and Technology
