化工学报2019，Vol.70Issue(6)：2361-2369,9.DOI:10.11949/0438⁃1157.20181479
紧实型GO/PVDF复合膜对有机染料的去除性能研究
Study on removal characteristics of organic dyes by tight GO/PVDF composite membranes
摘要
Abstract
The PVDF membrane was modified by graphene oxide (GO), and the compacted GO/PVDF composite membrane was prepared by immersion precipitation phase transformation. The hydrophilicity, pure water flux and surface zeta potential of the membrane were investigated. Rhodamine B and methyl orange were selected as positive and negative charge dyes to investigate the adsorption, desorption and retention properties of membranes. The results showed that the pure water flux of membrane increased from 45.10 L/(m2·h) to 58.40 L/(m2·h). When the content of GO was 0.50%(mass) (M2), the comprehensive performance of membrane was better. GO/PVDF composite membranes had a good adsorption effect on Rhodamine B. After 1.5 d, the adsorption capacity of M0—M3 were 1.02, 1.24, 1.79 and 1.49 mg/g respectively. The decolorization rate of Rhodamine B by ethanol was over 80%. The adsorption capacity of M2 was only 0.46 mg/g, and decolorization rate of methyl orange by 0.10 mol/L HCl solution was over 86%. The retention rates of two dyes remained above 57.60% and 57.20%. This study provided a scientific basis for the preparation of nano-materials modified membranes and their characteristics of organic dye removal.关键词
聚偏氟乙烯/氧化石墨烯/膜/染料/去除Key words
PVDF/GO/membrane/dye/remove分类
化学化工引用本文复制引用
朱振亚,白成玲,王磊,孟晓荣..紧实型GO/PVDF复合膜对有机染料的去除性能研究[J].化工学报,2019,70(6):2361-2369,9.基金项目
国家科技支撑计划项目(2015BAB01B03) （2015BAB01B03）
中南民族大学中央高校项目(CZT18022) （CZT18022）
