EFFECT OF CROSS-LINKING WITH GLUTARALDEHYDE ON ADSORPTION CAPACITY OF CHITOSAN BEADS

被引：0
|
作者：
Jozwiak, Tomasz [1 ]
Filipkowska, Urszula [1 ]
Rodziewicz, J. [1 ]
Nowosad, Ewa [1 ]
机构：
[1] Univ Warmia & Mazury, Dept Environm Engn, Ul Warszawska 117, PL-10719 Olsztyn, Poland
来源：
PROGRESS ON CHEMISTRY AND APPLICATION OF CHITIN AND ITS DERIVATIVES | 2013年 / 18卷
关键词：
adsorption; dyes; chitosan beads; crosslinking chitosan beads; glutaraldehyde;
D O I：
暂无
中图分类号：
TB3 [工程材料学]; R318.08 [生物材料学];
学科分类号：
0805 ; 080501 ; 080502 ;
摘要：
The study was undertaken to analyze the effect of chitosan cross-linking with glutaraldehyde on the adsorption capacity of chitosan beads during adsorption of Reactive Black (RB5) and Basic Green (BG4) dyes. Analyses were conducted at three pH values: pH 3.0; 5.0 and 9.0. Results obtained were evaluated with the use of four models of adsorption isotherms -Freundlich, Langmuir, Double Langmuir and Redlic-Petreson. The cross-linking of beads with glutaraldehyde turned out to be beneficial for the anionic dye RB5. Compared to the non-cross-linked beads, a comparable adsorption capacity (over 500 mg/g d. m.) was obtained at pH 3.0 and pH 5.0. In the case of the cationic dye, chitosan cross-linking reduced the quantity of adsorbed dye, irrespective of the pH value of the adsorption process.
引用
收藏
页码：35 / 47
页数：13
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