Cross-linked beads of activated oil palm ash zeolite/chitosan composite as a bio-adsorbent for the removal of methylene blue and acid blue 29 dyes

被引：173
|
作者：
Khanday, W. A. [1 ]
Asif, M. [2 ]
Hameed, B. H. [1 ]
机构：
[1] Univ Sains Malaysia, Sch Chem Engn, Engn Campus, Nibong Tebal 14300, Penang, Malaysia
[2] King Saud Univ, Coll Engn, Dept Chem Engn, POB 800, Riyadh 11421, Saudi Arabia
来源：
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES | 2017年 / 95卷
关键词：
Chitosan; Methylene blue; Zeolite; DYNAMIC ADSORPTION; AQUEOUS-SOLUTIONS; CATIONIC DYES; WASTE-WATER; CHITOSAN; ZEOLITE; CARBON; CU(II); IONS; EQUILIBRIUM;
D O I：
10.1016/j.ijbiomac.2016.10.075
中图分类号：
Q5 [生物化学]; Q7 [分子生物学];
学科分类号：
071010 ; 081704 ;
摘要：
Cross -linked beads of activated oil palm ash zeolite/chitosan (Z-AC/C) composite were prepared through the hydrothermal treatment of NaOH activated oil palm ash followed by beading with chitosan. The effects of initial dye concentration (50-400 mg/L), temperature (30 degrees C-50 degrees C) and pH (3-13) on batch adsorption of methylene blue (MB) and acid blue 29 (AB29) were studied. Adsorption of both dyes was better described by Pseudo-second-order kinetics and Freundlich isotherm model. The maximum adsorption capacities of Z-AC/C were 151.51,169.49, and 199.20 mg/g for MB and 212.76, 238.09, and 270.27 mg/g for AB29 at 30 degrees C, 40 degrees C, and 50 degrees C, respectively. (C) 2016 Elsevier B.V. All rights reserved.
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页码：895 / 902
页数：8
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