以纳米T iO2作催化剂、H2 O2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T iO2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 H2 O2溶液会有效提高罗丹明B的脱色率，纳米T iO2和H2 O2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 H2 O2溶液以及1．5mg纳米TiO2，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 O2 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 O2 solution could effectively enhance the percent of decolorating Rodamine B .The Nanometer TiO2 ,H2O2 and the processing time have the obvious influences on the effect of decolorating Rodamine B .When the initial density of Rodamine B is 10mg/l ,dosage of 35% H2 O2 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% .
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