摘要
对UV/H2O2处理丽华实红玉染料溶液的效果及其影响因素和动力学进行研究.结果表明:UV/H2O2对丽华实红玉染料溶液具有很好的处理效果,实验范围内提高H2O2浓度、降低染料初始浓度、外加Fe2+、升高温度能明显提高染料的降解率.染料的降解反应较好地表现为一级反应,活化能11.7 kJ.mol-1,指前因子2.22 min-1.染料溶液初始pH=10时染料降解率最小,偏酸偏碱均对提高降解率有利.
The degradation efficiency,effect factors and kinetics of dye Levafix Rubine by UV/H2O2 were investigated.The results showed that UV/H2O2 had a high activity on degradation of the dye,and the degradation ratio was increased obviously with increased H2O2 concentration,lowered the original dye concentration,applied Fe2＋,and raised temperature.The results also showed that the degradation of the dye was a first-order reaction apparently,with 11.7 kJ·mol-1 as its activation energy and 2.22 min-1 as its pre-exponential factor.In addition,the degradation efficiency of the dye was lowest when the initial pH of dye solution being 10,and was improved when the pH gone up or down.
出处
《兰州理工大学学报》
CAS
北大核心
2012年第5期62-65,共4页
Journal of Lanzhou University of Technology
关键词
双氧水
光降解
丽华实红玉
反应速率常数
活化能
hydrogen peroxide
photodegradation
Levafix Rubine
reaction rate constant
activation energy
