天津工业大学学报2017，Vol.36Issue(6)：33-38,6.DOI:10.3969/j.issn.1671-024x.2017.06.007
Fe0-PDADMAC/PAA复合膜还原降解酸性红B
Reductive degradation of ARB by Fe0-PDADMAC/PAA composite membrane
摘要
Abstract
In order to obtain the Fe0 with high dispersity and stability on the composite membrane and make Fe0 on the composite membrane possess the characteristic of high activity and less pssivation, the modified PAN flat membranes assembled with polydiallyldimethylammonium chloride (PDADMAC) and polyacrylic acid (PAA) were successfully prepared via layer-by-layer self-assembling technique. (Fe0-PDADMAC/PAA)n composite membranes were prepared by coordination of carboxyl and ferrous ion and classical liquid phase reduction method. Furthermore, the scanning electron microscope (SEM) and X-ray photoelectron spectroscopy (XPS) were performed to determine the morphology and chemical composition of the membrane and the composite membrane were used to degrade the Acid Red B (ARB) in water. The results showed that the contents of iron on membrane were 25.7, 77.6, 114.0, 151.7, 171.4 mg/g, while the number of membrane layer (n) was 1, 3, 5, 7, 9. The removal rate of ARB by (Fe0-PDADMAC/PAA)n was 85％under the pH value of 2.5-5.5. Dissolved oxygen (DO) had no obvious influence on the reductive degradation of ARB. During the degradation, the leak quantities of Fe ion from composite membrane was less than 0.1 mg/g and illustrated Fe ion had good stability on the composite membrane.关键词
层层自组装技术/配位/零价铁/酸性红B(ARB)/还原降解Key words
layer-by-layer self-assembling technique/coordination/aero-valent iron (ZVI)/Acid Red B(ARB)/reductive degradation分类
轻工纺织引用本文复制引用
张环,王一冰,魏俊富,李爽爽,傅敏,安慧颖..Fe0-PDADMAC/PAA复合膜还原降解酸性红B[J].天津工业大学学报,2017,36(6):33-38,6.基金项目
国家自然科学基金资助项目(41301542,51678409) （41301542,51678409）
天津市科技计划项目(15PTSYJC00240) （15PTSYJC00240）
