武汉工程大学学报2025，Vol.47Issue(6)：607-613,7.DOI:10.19843/j.cnki.CN42-1779/TQ.202409010
改性活性炭对甲基橙的吸附试验探究
Experimental investigation on methyl orange adsorption by modified activated carbon
摘要
Abstract
Methyl orange(MO)is a typical and widely used acidic azo dye featuring a mono-azo group.However,its aromatic molecular structure resists degradation,making it difficult to remove from wastewater.In this study,activated carbon was modified through oxidation with potassium permanganate and used as an adsorbent for MO removal.The effects of several key parameters(including adsorbent dosage,initial MO concentration,solution pH,and adsorption time)were systematically evaluated in terms of decolorization efficiency,chemical oxygen demand(COD)and MO removal rate.The results demonstrated that under optimal conditions(initial MO concentration of 20 mg/L,modified activated carbon dosage of 0.5 g/L,pH=9.00,and reaction time of 60 min),the MO removal rate,decolorization efficiency,and CODcr removal reached 98.8%,98.0%,and 98.9%,respectively.Compared with unmodified activated carbon,the modified material exhibited significantly enhanced adsorption performance.关键词
改性活性炭/甲基橙/偶氮染料/高锰酸钾氧化Key words
modified activated carbon/methyl orange/azo dyes/potassium permanganate oxidation分类
医药卫生引用本文复制引用
李诗莹,谈乐乐,刘静,张楠,丁宗庆..改性活性炭对甲基橙的吸附试验探究[J].武汉工程大学学报,2025,47(6):607-613,7.基金项目
汉江师范学院2023年科学研究计划项目(2023B18) （2023B18）
