过氧化氢光催化氧化活性艳橙溶液脱色降解研究

Photodegradation of Reactive Orange with Hydrogen Peroxide

通过正交法设计试验,研究了过氧化氢对活性艳橙溶液光催化脱色的影响因素,并对溶液中初始过氧化氢浓度,初始pH值,光解时间对活性艳橙溶液脱色率影响进行了详细研究.结果表明当溶液中过氧化氢浓度为43.14 mmol/L,溶液初始pH值为3,光解时间为20 m in时,10 mg/L的活性艳橙溶液脱色率可达到100%.

Photodegradation of reactive orange with hydrogen peroxide was investigated. An orthogonal method was employed to evaluate the effects of hydrogen peroxide concentrations, initial pH value and irradiation time on decolorization efficiency. The optimum conditions was found as following： the initial connection of H202was 43.14 mmol/L, pH value 3, and irradiation time 20 min. The decolorization rate of the KGN solution（ 10 mg/L） was 100%.