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摘要
以季铵化壳聚糖(QCS)和正硅酸乙酯(TEOS)为原料,借助交联剂戊二醛(GA),通过溶胶-凝胶法制得有机-无机QCS/TEOS杂化膜,并考察其对罗丹明B(RB)的吸附效果。结果表明:当温度为40℃、吸附时间为20min、溶液pH=6、TEOS用量为20%(wt,质量分数)、RB初始浓度为8mg/L条件下,QCS/TEOS杂化膜对RB的吸附效果最好,吸附量达到3.402mg/g。
Abstract
Organic-inorganic hybrid membranes were synthesized with quaternized chitosan(QCS) and tetraethoxysilane(TEOS) through crosslinked glutaraldehyde(GA) and the method of sol-gel reaction,and studied the adsorption ability for Rhodamine B(RB).The results showed that the optimum adsorption condition was that the adsorption temperature was 40℃,the adsorption time was 20min,the solution pH value was 6,the ethyl silicate dosage was 20(wt)% and the initial concentration of RB was 8mg/L.Under the aforementioned conditions,RB adsorption capacity of membrane reached 3.402mg/g.
关键词
季铵化壳聚糖
/
正硅酸乙酯
/
溶胶-凝胶法
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吸附
/
罗丹明B
Key words
quaternized chitosan
/
tetraethoxysilane
/
sol-gel method
/
adsorption
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Rhodamine B
季铵化壳聚糖-硅酸乙酯有机-无机杂化膜的制备及其吸附性能研究[J].
化工新型材料, 2018, 46(1): 111-113 DOI:
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基金资助
辽宁省科技厅博士启动项目(20141126);辽宁省教育厅科学研究一般项目(L2013153);抚顺市科学技术发展资金计划项目(20141115);辽宁石油化工大学博士启动基金(2013XJJ-006)
