Cu2O/Bi2O3光催化降解罗丹明B的工艺条件研究

摘要

This paper used supported catalyst Cu2O/Bi2O3 to study the degradation of soluble dye rhodamine B, and surveyed the impact of degradation conditions on catalytic degradation process of Rhodamine B. The results show that it has better degradation effect, degradation of 5mg/L Rhodamine B solution nearly to 100% for 5 minutes, under the optimum conditions its pH is 3-5, the catalyst is 1g/L, and the amount of hydrogen peroxide is 1.0% (volume ratio).%　　本文采用负载型催化剂 Cu2O/Bi2O3，研究了对可溶性染料罗丹明 B 的降解情况。考察了降解条件对罗丹明 B 催化降解过程的影响。结果表明，对罗丹明 B 有较好的降解效果，5分钟使5mg/L 的罗丹明 B 溶液降解近100%，最佳工艺条件下 pH 为3-5，催化剂为1g/L，双氧水加入量为1.0%(体积比)。