偶氮染料分子结构与氧化脱色性能的定量关系  

Quantitative relationship between oxidative decoloration property and molecular structure of azo dyes

作　　者：董永春[1] 刘春燕[2] 刘瑞华[1] 朱红星[1] 余彩香[1] 

机构地区：[1]天津工业大学材料科学与化学工程学院,天津300160 [2]天津工业大学计算机与自动化学院,天津300160

出　　处：《纺织学报》2006年第1期16-19,共4页Journal of Textile Research

基　　金：天津市高校科技发展基金资助项目(2003-1007);天津市自然科学基金资助项目(043605911);天津工业大学"十五"投资纺织学科项目(5201040102)

摘　　要：基于草酸铁(Ⅲ)/过氧化氢光催化氧化体系,对35种水溶性阴离子偶氮染料进行脱色降解研究,通过选择分子结构描述符和计算机多元线性回归分析方法考察了其脱色率及其分子结构之间的定量关系。结果表明,在染料分子结构描述符与脱色率之间存在着较好的线性相关性,其中MW/S值和偶氮基数目对脱色率的贡献最为显著,得到的分子结构和脱色率之间的定量关系方程可用于计算染料的理论脱色率。The oxidative decoloration of 35 anionic water-soluble azo dyes was carried out by using photo-catalytic system based on ferrioxalate complexes(Ⅲ)/H2O2.The quantitative relationship between the decoloration rate and molecular structure of azo dyes was studied by selection of molecular descriptors and multi-linear regression analysis.The results indicate that good linear correlations exist between decoloration rate of azo dyes and their molecular descriptors,in particular,MW/S and number of azo groups have most prominent contribution to the decoloration rate.The equation of quantitative relationship between decoloration rate of azo dyes and their molecular descriptors derived may be used for calculation of predicted decoloration rate.

关 键 词：偶氮染料 分子结构 氧化脱色 定量关系 

分 类 号：X131[环境科学与工程—环境科学]