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요약정보
羟乙基纤维素水凝胶的制备及吸附性能 / Preparation of Hydroxyethyl Cellulose Hydrogel for Adsorption Performance
Resource Type
Academic Journal
Authors
王昆
;
赵梓年
;
候冰娜
;
沈惠玲
;
刘祯浩
;
李征征
;
Wang Kun
;
Zhao Zinian
;
Hou Bingna
;
Shen Huiling
;
Liu Zhenhao
;
Li Zhengzheng
Source
工程塑料应用 / Engineering Plastics Application
. 49(3):20-26
Subject
羟乙基纤维素
水凝胶
三维网状结构
吸附
Language
Chinese
ISSN
1001-3539
Online Access
Find it @ DONGA
초록
以羟乙基纤维素(HEC)(作为水凝胶的骨架增强水凝胶的强度)和丙烯酸(AA)为原料,过氧化氢/维生素C混合溶液作为氧化还原引发剂,通过自由基聚合的方法制备HEC-AA水凝胶.通过傅里叶变换红外光谱对HEC-AA水凝胶的结构进行了表征,分析表明水凝胶内部存在氢键.通过扫描电子显微镜对HEC-AA水凝胶的微观结构进行研究,结果表明HEC-AA水凝胶内部形成了三维网状结构,其孔径尺寸随着HEC用量的增加而减小.通过对HEC-AA水凝胶的吸水和Cu2+吸附性能测试表明,当HEC用量为0.3 g时,HEC-AA水凝胶的吸水性能和对Cu2+吸附能力最好.对盐溶液敏感性的测试表明,HEC-AA水凝胶的吸水性能会随着盐溶液浓度的增加而降低.Cu2+的初始浓度和pH值对吸附性能影响的测试结果表明,当HEC用量为0.3 g,pH值为5,Cu2+初始浓度为100 mg/L时,水凝胶的吸附容量最大为82.3 mg/g.HEC-AA水凝胶在重金属吸附领域具有良好的应用前景.
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