摘要
以聚乙烯醇(PVA)、聚丙烯酸(PAA)为基体材料,采用静电纺丝技术将羟基磷灰石(HAP)成功负载进入纳米纤维中。测试了HAP/PVA/PAA的吸附容量、吸附等温线、动力学、热力学和重复使用性能。HAP/PVA/PAA的内球表面络合物使HAP/PVA/PAA具有较强的铀容量、良好的重复使用性,热力学描述了这种相互作用是一个随着熵的增加的吸热自发过程。本研究为水介质中铀的去除提供了一种纳米纤维材料。
Using polyvinyl alcohol(PVA)and polyacrylic acid(PAA)as matrix materials,hydroxyapatite(HAP)was successfully loaded into nanofibers by electrospinning technology.The adsorption capacity,adsorption isotherm,kinetics,thermodynamics and reuse performance of HAP/PVA/PAA were tested.The inner spherical surface complex of HAP/PVA/PAA makes HAP/PVA/PAA have strong uranium capacity and good reusability.Thermodynamics describes that this interaction is an endothermic spontaneous process with the increase of entropy.This study provides a nanofiber material for the removal of uranium in aqueous medium.
作者
邹融
戴荧
Zou Rong;Dai Ying(School of Chemical Biology and Material Science,East China University of Technology,Nanchang,Jiangxi Nanchang 330032)
出处
《江西化工》
2021年第1期100-105,共6页
Jiangxi Chemical Industry
关键词
羟基磷灰石
纳米纤维
膜
静电纺丝
超亲水
铀
hydroxyapatite
nanofibers
membraneelectrospinning
super-hydrophilic
uranium
