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.
机构:
School of Public Health, Taipei Medical University, Taipei
Bibliometric Centre, Taipei Med. Univ. - Wan-Fang Hosp., Taipei
School of Public Health, Taipei Medical University, TaipeiSchool of Public Health, Taipei Medical University, Taipei
机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R China
Ho, YS
;
McKay, G
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机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R China
机构:
School of Public Health, Taipei Medical University, Taipei
Bibliometric Centre, Taipei Med. Univ. - Wan-Fang Hosp., Taipei
School of Public Health, Taipei Medical University, TaipeiSchool of Public Health, Taipei Medical University, Taipei
机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R China
Ho, YS
;
McKay, G
论文数: 0引用数: 0
h-index: 0
机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, Peoples R China