天津工业大学学报2017，Vol.36Issue(4)：18-22,31,6.DOI:10.3969/j.issn.1671-024x.2017.04.004
介孔SiO2接枝聚丙烯非织造布对壬基酚的吸附
Adsorption of PP non-woven grafted mesoporous SiO2 for nonylphenol
摘要
Abstract
In order to remove the endocrine disrupting compound nonylphenol(NP) in the water, PP non-woven grafted by mesoporous SiO2 was prepared. The polypropylene (PP) non-woven was grafted by sodium polyacrylate with UV irradiation grafting. Calcium silicate grafted PP non-woven (PP-g-CaSiO3) was then prepared by dipping PP-g-COONa in Na2SiO3 solution and crosslinking by CaCl2 solution. After acid modification by HCl solution (pH=3), calcium silicate containing mesoporous SiO2 grafted PP non-woven (PP-g-CaSiO3@SiO2) was prepared. The adsorption behaviors of PP-g-CaSiO3@SiO2 for nonylphenol were investigated. The results indicated that the adsorption rate of PP-g-CaSiO3@SiO2 for NP was fast, the adsorption equilibrium can be reached within 3 h, the equilibrium adsorption capacity reached 54.40 mg/g and was significantly higher than the one of PP non-woven (14.39 mg/g). Isothermal adsorption showed that it agreed well with Freundlich model, and kinetic adsorption showed that it agreed with first order kinetics model. After 5 times reusing, the equilibrium adsorption capacity of PP-g-CaSiO3@SiO2 for NP can reach 70%of the original value.关键词
壬基酚/吸附/介孔SiO2/聚丙烯非织造布Key words
nonylphenol/adsorption/mesoporous SiO2/polypropylene non-woven分类
轻工纺织引用本文复制引用
刘亚,武辉,赵孔银,李东英,李金刚,魏俊富,刘琪..介孔SiO2接枝聚丙烯非织造布对壬基酚的吸附[J].天津工业大学学报,2017,36(4):18-22,31,6.基金项目
国家自然科学基金资助项目(51103102,51403155) （51103102,51403155）
天津市科技计划项目(15PTSYJC00240) （15PTSYJC00240）
天津市应用基础与前沿技术研究计划项目(16JCZDJC37500,15JCYBJC47200) （16JCZDJC37500,15JCYBJC47200）
天津市科技特派员项目(16JCTPJC44800) （16JCTPJC44800）
