摘要
采用吸附、焙烧法制备活性炭-纳米二氧化钛催化剂,对偶氮染料甲基橙溶液进行电催化氧化降解实验。考察催化剂量、槽电压、pH值、电解质浓度、反应时间等因素对处理效果的影响,探讨该法对COD和色度的去除机制;并以水杨酸为探针性物质,推测出电催化氧化过程中羟基自由基.OH的产生。
Nanometer titanium dioxide-loaded active carbon, which was prepared by adsorption and roasting method, was used as an activator in the electro-catalytic degradation experiment of methyl orange solution, an azo dye. Based on the effects of activator amount, applied voltage, pH value, electrolyte concentration and reaction time on the treatment efficiency, the removal mechanisms of COD and chroma were discussed. Furthermore, salicylic acid was used as a probe to discuss the generation of hydroxyl radical.
出处
《水资源保护》
CAS
北大核心
2006年第3期68-71,共4页
Water Resources Protection
关键词
甲基橙
电催化氧化
羟基自由基
有机废水
废水处理
methyl orange
electro-catalytic oxidation
hydroxyl radicals
organic wastewater
wastewater treatment
