环糊精改性炭黑的制备及对苯酚类的吸附性能
Preparation of β-Cyclodextrin Modified Carbon Black and Its Adsorption Properties Toward Phenolics
宋莹 1李琳 2陈建2
作者信息
- 1. 四川轻化工大学 材料科学与工程学院,四川 自贡 643000;钒钛资源综合利用四川省重点实验室,四川 攀枝花 617000
- 2. 四川轻化工大学 材料科学与工程学院,四川 自贡 643000
- 折叠
摘要
采用HNO3 对炭黑N115进行氧化改性后接枝环糊精,制备环糊精改性炭黑材料,经FT-IR、SEM及TG等方法证实成功改性.将炭黑材料用于对酚类的吸附性研究,考察炭黑用量、温度及时间等因素对邻甲酚、对甲酚与双酚A去除率的影响关系.结果表明,环糊精改性炭黑对三种酚的吸附率明显提升,最佳条件为:时间为40 min,用量12 mg,温度40 oC,其主要吸附机制是环糊精对双酚A的强包结作用.
Abstract
Carbon black N115 was oxidized by HNO3 and then grafted with cyclodextrin to prepare cyclodextrin modified carbon black materials,they were confirmed by FT-IR,SEM and TG methods.Furthermore,these materials were used to study the adsorption performance of phenol derivatives.The influence of carbon black content,temperature and time on the removal rate of o-cresol,p-cresol and bisphenol A was investigated before and after the modification of carbon black.The results showed that the adsorption rate of three phenols on carbon black modified by cyclodextrin was significantly improved.The optimal adsorption conditions were as follows:the time 40 min,the dosage 12 mg,the temperature 40℃.The strong inclusion of cyclodextrin on bisphenol A might be the main adsorption mechanism.
关键词
环糊精/炭黑改性/苯酚类/吸附Key words
Cyclodextrin/Modified carbon black/Phenolics/Adsorption引用本文复制引用
基金项目
国家自然科学基金(52272042)
钒钛资源综合利用四川省重点实验室开放项目(2022FTSZ15)
出版年
2024
NETL
NSTL
维普
万方数据