季铵化壳聚糖／钛酸四丁酯杂化膜的制备及其对罗丹明B的吸附性能

Preparation of QCS/TBT hybrid membrane and its adsorption properties towards RB

本文采用溶胶-凝胶法制备季铵化壳聚糖(QCS)/钛酸四丁酯(TBT)杂化膜。利用FT-IR,TGA对所制备的杂化膜进行测试表征。并考察其对罗丹明B(RB)的吸附性能。结果表明:最佳吸附条件为:TBT含量为15%,吸附时间为80min,p H值为4,RB的初始浓度为100mg·L-1,温度为50℃。在此条件下,该杂化膜对RB的吸附量为22.13mg·g^(-1)。

Organic-inorganic hybrid membranes were synthesized with quaternized-chitosan （QCS） and tetrabutyl titanate （TBT） through the method of sol-gel reaction. The prepared samples were characterized by FT-IR, TGA. It＇s adsorption ability for rhodamine B （RB） was investigated. The results show that the optimum adsorption condition： the mass fraction of TBT is 15%; adsorption time is 80 min; pH values 4; the initial mass concentration of RB is 100mg·L^-1; temperature is 50℃ Under this condition, the RB adsorption capacity of the membrane is 22.13mg·g^-1.