磁性纳米复合纤维材料的制备及对甲基橙染料的吸附动力学研究  

Preparation of Magnetic Nanocomposite Fiber Material and its Adsorption Kinetics of Methyl Orange Dye

作　　者：杨建安 文焱炳 林本旺 YANG Jian’an;WEN Yanbing;LIN Benwang(Guizhou Research Institute of Chemical Engineering,Guiyang 550002,China;Shanghai Shenfeng Geological New Technology Application Research Institute Co.,Ltd.,Shanghai 201700,China;Guizhou Qianxiangyuan Oil Co.,Ltd.,Liping 557300,China)

机构地区：[1]贵州省化工研究院,贵州贵阳550002 [2]上海申丰地质新技术应用研究所有限公司,上海201700 [3]贵州黔香园油脂有限公司,贵州黎平557300

出　　处：《化工技术与开发》2023年第8期5-10,共6页Technology & Development of Chemical Industry

基　　金：贵州省科学技术基金重点项目(黔科合基础[2017]1414);贵州省科技计划项目(黔科合支撑[2020]1Y143号)。

摘　　要：为了制备高效、可回收的染料工业废水吸附剂,本文以Fe_(3)O_(4)和纤维素为原料,合成了磁性纳米复合纤维材料Fe_(3)O_(4)@cellulose,再分别使用戊二醛和聚乙烯亚胺进行交联和改性后,制备了Fe_(3)O_(4)@cellulose-PEI,考察了材料在不同的pH、吸附时间、染料初始浓度下,对甲基橙染料的吸附降解效果。结果表明,pH=4,吸附时间为6h时,Fe_(3)O_(4)@cellulose-PEI对甲基橙的吸附容量达到84.4mg·g^(-1)。动力学研究结果表明,Fe_(3)O_(4)@cellulose-PEI对阴离子染料甲基橙的吸附过程,符合准二级吸附速率方程和Freundlich等温吸附模型。该纳米复合纤维材料对甲基橙模拟染料废水的吸附效果良好且易分离回收,在工业废水的治理中具有良好的应用前景。In order to prepare an efficient and recyclable adsorbent for dye industrial wastewater,magnetic nanocomposite fiber material Fe_(3)O_(4)@cellulose was synthesized applied Fe_(3)O_(4) and cellulose as raw materials.Fe_(3)O_(4)@cellulose was crosslinked and modified with glutaraldehyde and polyvinylimine to prepare Fe_(3)O_(4)@cellulose-PEI.The adsorption and degradation of methyl orange dye were investigated under different pH,adsorption time and initial dye concentration.The results showed that when pH=4 and adsorption time was 6h,the adsorption capacity of Fe_(3)O_(4)@cellulose-PEI for methyl orange reached 84.4080 mg/g.The kinetic study result showed that the adsorption process of anionic dye methyl orange by Fe_(3)O_(4)@cellulose-PEI conformed to the quasi second order adsorption rate equation and Freundlich isotherm adsorption model.The nano composite fiber material had good adsorption effect on methyl orange simulated dye wastewater and was easy to separate and recover,which had a good application prospect in industrial wastewater treatment.

关 键 词：戊二醛 纳米复合纤维材料 吸附降解 吸附动力学 

分 类 号：TB383[一般工业技术—材料科学与工程] X703[环境科学与工程—环境工程]