Radiation Synthesis of Poly(Acrylamide-Acrylic Acid-Dimethylaminoethyl Methacrylate) Resin and Its Use for Binding of Some Anionic Dyes

被引:6
作者
Abdel-Aziz, H. M. [1 ]
Siyam, T. [1 ]
机构
[1] Atom Energy Author, Hot Labs Ctr, Cairo, Egypt
关键词
Radiation; Resins; Adsorption; Dyes/pigments; INDIGO CARMINE DYE; AQUEOUS-SOLUTIONS; TEMPLATE POLYMERIZATION; ACRYLIC-ACID; WASTE-WATER; ADSORPTION; REMOVAL; HYDROGELS; EFFLUENT; CHITOSAN;
D O I
10.1007/s11270-010-0632-5
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Poly(acrylamide-acrylic acid-dimethylaminoethyl methacrylate) P(AAm-AA-DMAEMA) resin was prepared by the template copolymerization. PAAm was used as a template for the copolymerization of DMAEMA and AA in aqueous solution using gamma rays. The adsorption of indigo carmine and eriochrome black-T anionic dyes from aqueous media on P(AAm-AA-DMAEMA) has been investigated. The adsorption behavior of this resin has been studied under different adsorption conditions: dye concentrations (50-500 mg l(-1)), contact times, temperature (30-55A degrees C), and pH values (2-7). The amount of dye adsorbed increased with increasing resin content, but it had a little change with temperature and decreased slightly with increasing pH. Adsorption data of the samples were modeled by the pseudo-first-order and pseudo-second-order kinetic equations in order to investigate dye adsorption mechanism. It was found that the adsorption kinetics of the resin followed a pseudo-second-order model with rate constant (k (2)) of 2.5 x 10(-3) and 1.8 x 10(-2) g (mg(-1) min(-1)) for indigo carmine and eriochrome black-T, respectively. Equilibrium isotherms were analyzed using the Langmuir and Freundlich isotherms. It was seen that the Freundlich model fits the adsorption data better than the Langmuir model.
引用
收藏
页码:165 / 174
页数:10
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