纺织工程学报2024，Vol.2Issue(6)：23-32,10.
腈纶纤维负载氢氧化镧吸附剂的制备及其水体除磷性能研究
Preparation of polyacrylonitrile fiber-supported lanthanum hydroxide adsorbents and its phosphorus removal performance in water
摘要
Abstract
The cyanogroup on the surface of polyacrylonitrile(PAN)fibers exhibit high reactivity,and can be chemically modified to give the fiber new functions and expand their applications beyond the textile industry.PAN fibers were aminated with triethylenetetramine and subsequently loaded with lanthanum hydroxide to de-velop an efficient phosphorus adsorbent.The modified fibers demonstrated excellent adsorption performance for phosphate ions in aqueous solutions,achieving a maximum adsorption capacity of 60.13 mg/g according to the Langmuir model,which significantly exceeds that of previously reported fiber-based adsorbents.Additionally,the material reached adsorption equilibrium within 30 minutes,indicating rapid adsorption kinetics.Regenera-tion experiments revealed that the adsorbent retained 59%of its initial capacity after five cycles of regeneration with sodium hydroxide solution,underscoring its good regenerability and reusability.Moreover,the flexibility and weavability of these fibers enable them to be fashioned into various shapes to accommodate diverse applica-tion scenarios,providing an effective solution for the efficient removal of phosphorus from water bodies.关键词
腈纶纤维/氢氧化镧/磷酸根/吸附/可循环利用Key words
polyacrylonitrile fibers/lanthanum hydroxide/phosphorus adsorption/reusability分类
轻工纺织引用本文复制引用
张紫筠,张宇,郗蕊,杜思倩,宋登鹏..腈纶纤维负载氢氧化镧吸附剂的制备及其水体除磷性能研究[J].纺织工程学报,2024,2(6):23-32,10.基金项目
国家自然科学基金青年基金项目(22201224) （22201224）
武汉市科技局应用基础前沿项目(2022023988065206). （2022023988065206）
