Preparation and Characterization of Chitosan/Hdroxy-Aluminium Pillared Montmorillonite Nanocomposites
Preparation and Characterization of Chitosan/Hdroxy-Aluminium Pillared Montmorillonite Nanocomposites
复制标题
DOI：
10.4028/www.scientific.net/kem.334-335.825
复制
发表时间：
2007-03
期刊：
影响因子：
--
通讯作者：
Wei Tan;Yi He Zhang;Y. Szeto;L. Liao
中科院分区：
文献类型：
--
作者：
Wei Tan;Yi He Zhang;Y. Szeto;L. Liao
结果表明，壳聚糖和羟基铝柱撑蒙脱石是去除印染废水中染料和金属离子的优良材料。壳聚糖/羟基铝柱撑蒙脱石纳米复合材料有望在处理过程中发挥多重作用。在本研究中，通过将羟基铝柱撑蒙脱土掺入壳聚糖溶液中，以稀乙酸作为溶解壳聚糖的溶剂，制备了纳米复合材料。壳聚糖与蒙脱土的阳离子交换容量的比例分别为约1:1、2:1、3:1、4:1和6:1。通过 XRD（X 射线衍射）、SEM（扫描电子显微镜）对纳米复合材料进行了表征。实验结果表明，羟基铝阳离子的存在有利于壳聚糖的插层，MMT的层间与壳聚糖片的双层进行插层。可用于吸收印染废水中的有机离子和金属离子。
It was shown that chitosan and hydroxy-aluminum pillared montmorillonites were excellent materials for the removal of dyes and metal ions from effluent of dying and finishing. Chitosan/ hydroxy-aluminum pillared montmorillonite nanocomposites are expected to play a multiplex role in the treating process. In this study, the nanocomposite was prepared by incorporating hydroxy-aluminum pillared montmorillonite into chitosan solution that diluted acetic acid was used as solvent for dissolving the chitosan. The ratio of chitosan to the cationic exchange capacity of the montmorillonite was about 1:1, 2:1, 3:1, 4:1 and 6:1, respectively. The nanocomposites were characterized by XRD (X-ray diffraction), SEM (Scanning Electron Microscopy). The experimental results indicated that the presence of hydroxy-aluminum cation was in favor of the chitosan intercalation and the interlayers of MMT was intercalated with the bilayers of chitosan sheets. and they can be used in absorption of organic and metal ions for dying and finishing effluent.