Adsorption of acid fuchsin onto the chitosan-montmorillonite composite

被引：10
作者：
Cao, Chun-Yan [1 ]
Zhang, Tian [1 ]
Cong, Qiao [1 ]
机构：
[1] Bohai Univ, Coll Chem Chem Engn & Food Safety, 19 Keji Rd, Liaoning 121013, Jinzhou, Peoples R China
来源：
MARINE GEORESOURCES & GEOTECHNOLOGY | 2017年 / 35卷 / 06期
基金：
中国国家自然科学基金;
关键词：
Acid fuchsin; chitosan; dyeing wastewater; montmorillonite; removal efficiency; FISCHER-TROPSCH SYNTHESIS; AQUEOUS-SOLUTION; ACTIVATED CARBON; WASTE-WATER; SORPTION KINETICS; DYE REMOVAL; EQUILIBRIUM; ADSORBENTS; SINGLE; REUSE;
D O I：
10.1080/1064119X.2016.1240277
中图分类号：
P75 [海洋工程];
学科分类号：
0814 ; 081505 ; 0824 ; 082401 ;
摘要：
The chitosan-montmorillonite composites (CTS-MMT) were prepared by CTS in combination with Na-type montmorillonite (Na-MMT). The composites were characterized by X-ray diffraction and Fourier transform infrared spectroscopy. The effects of initial pH value of the solution, adsorbent dose, the mass ratio of CTS to Na-MMT, the adsorption temperature, and contact time on acid fuchsin (AF) removal efficiency were investigated. The results indicated that the CTS could be successfully intercalated into the interlayers of Na-MMT. With the increase in content of CTS, some of them may be distributed on the surfaces of the clay and the AF removal efficiency can reach 80.2% using CTS-MMT as adsorbent to treatment AF wastewater (the AF concentration 20mg/L) under the condition of pH, 5; adsorbent dose, 5g/L; the mass ratio of CTS to Na-MMT, 0.25:1; adsorption temperature, 40 degrees C; and contact time, 90min. Meanwhile, it was shown that the adsorption processes were better fitted by pseudo-second-order model and the Freundlich model.
引用
收藏
页码：799 / 805
页数：7
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