聚乙烯醇/超细羽绒粒子共混膜的制备及其染料吸附动力学  

Preparation and adsorption kinetics of PVA/superfine down particle blend membrane

作　　者：陈凤翔[1,2,3] 谢文雅[4] 董兵海[1,2] 王世敏[1,2] 赵丽[1,2] 许祖勋[1,2] 万丽[1,2] 

机构地区：[1]有机化工新材料湖北省协同创新中心,武汉430062 [2]功能材料绿色制备与应用教育部重点实验室,湖北大学,武汉430062 [3]纺织新材料与先进加工技术国家重点实验室培育基地,武汉430200 [4]东华大学纺织学院,上海200051

出　　处：《环境工程学报》2016年第1期355-359,共5页Chinese Journal of Environmental Engineering

基　　金：“973”国家重点基础研究发展计划项目(2012CB722701);国家自然科学基金青年科学基金资助项目(21402045);湖北省科技厅创新群体项目(2013CFA005);武汉市科技局应用基础研究项目(2013010501010140)

摘　　要：为了改善并更好地研究聚乙烯醇的染料吸附性能,制备了不同超细羽绒粒子含量的聚乙烯醇/超细羽绒粒子共混膜,并将其用于对活性艳红X-3B染料的吸附。结果表明,随着超细羽绒粒子含量的增加,聚乙烯醇/超细羽绒粒子共混膜表面粗糙程度增大。当超细羽绒粒子的质量分数为27.8%时,K/S值最大,染料吸附性能最好,其吸附效果比纯聚乙烯醇膜提升约54.5%。动力学研究结果表明,伪二级动力学模型能更好地描述聚乙烯醇/超细羽绒粒子共混膜对染料的吸附。Polyvinyl alcohol（ PVA） / superfine down particle blend membrane with different superfine down particle contents were prepared to improve the dye adsorption properties of blend membrane. The results showed that the surface roughness of polyvinyl alcohol（ PVA） / superfine down particle blend membrane increased with the increase of superfine down particle content. The largest K / S value was obtained on the sample with 27. 8 wt%superfine down particle,for which the maximum K / S value was nearly 54. 5% higher than the pure PVA membrane. Adsorption kinetics was described using pseudo-first-order and pseudo-second-order kinetic models. It was obtained that the adsorption process followed the pseudo-second-order rate kinetics.

关 键 词：超细羽绒粒子 聚乙烯醇 共混膜 吸附 动力学 

分 类 号：X522[环境科学与工程—环境工程]