净水技术2024，Vol.43Issue(z2)：76-82,7.DOI:10.15890/j.cnki.jsjs.2024.s2.011
MOF衍生氮掺杂碳及其膜材料去除染料性能试验
Experiment on Dye Removal of MOF-Derived Nitrogen Doped Carbon and Mixed Matrix Membrane
摘要
Abstract
Byusing ZIF-67 in the metal organic framework(MOFs)as template,the MOF derived carbons(MDC)and nitrogen-doped carbon(NDC)were obtained through pyrolysis with high azo dye adsorption capacity.Then NDCs was introduced into polyvinylidene fluoride(PVDF)membrane substrate to further intercept the azo dyes by filtration.With the optimization of the preparation conditions and the analysis of characterization,the mechanism of dye removal was explored and the best performance of membrane materials were demonstrated.The results showed that the maximum adsorption capacity of NDC for methylene blue(MB)was 185.35 mg/g and the adsorptions could be fitted well with Langmuir model.The performance enhanced with the increase of pH and ionic strength.Universality tests demonstrated that NDC possessed a great adsorption amount on rhodamine B(RhB)and malachite green(MG).The optimal filtration performance was achieved by the membrane with a 4％mass ratio of NDC addition,remaining 90％of the interception efficiency after 8 cycles.This study develops a new type of dye filtration membrane loaded with derivative carbon materials which provides a new practical method for the removal of dye pollutants.关键词
偶氮染料/吸附去除/金属有机框架/氮掺杂碳材料/混合基质膜Key words
azo dyes/adsorption removal/metal-organic frameworks/nitrogen-doped carbon material/mixed matrix membrane分类
资源环境引用本文复制引用
刘华晨,李博宇,程玉拓..MOF衍生氮掺杂碳及其膜材料去除染料性能试验[J].净水技术,2024,43(z2):76-82,7.基金项目
国家重点研发计划(2019YFC1905403),国家自然科学基金项目(52076152) （2019YFC1905403）
