Comparative evaluation of adsorption kinetics and isotherms of a natural product removal by Amberlite polymeric adsorbents
被引:112
作者:
Abdullah, M. A.
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机构:
Univ Teknol Petronas, Dept Chem Engn, Tronoh 31750, Perak Dr, MalaysiaUniv Teknol Petronas, Dept Chem Engn, Tronoh 31750, Perak Dr, Malaysia
Abdullah, M. A.
[1
]
Chiang, L.
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机构:
Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Technol, Serdang 43400, Selangor De, MalaysiaUniv Teknol Petronas, Dept Chem Engn, Tronoh 31750, Perak Dr, Malaysia
Chiang, L.
[2
]
Nadeem, M.
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Univ Teknol Petronas, Dept Chem Engn, Tronoh 31750, Perak Dr, MalaysiaUniv Teknol Petronas, Dept Chem Engn, Tronoh 31750, Perak Dr, Malaysia
Nadeem, M.
[1
]
机构:
[1] Univ Teknol Petronas, Dept Chem Engn, Tronoh 31750, Perak Dr, Malaysia
[2] Univ Putra Malaysia, Fac Food Sci & Technol, Dept Food Technol, Serdang 43400, Selangor De, Malaysia
Adsorption;
Isotherm models;
Linear and non-linear regression;
Microporous polymeric adsorbents;
Adsorption kinetics;
AQUEOUS-SOLUTION;
SORPTION;
EQUILIBRIUM;
CULTURES;
DYES;
D O I:
10.1016/j.cej.2008.06.018
中图分类号:
X [环境科学、安全科学];
学科分类号:
08 ;
0830 ;
摘要:
Adsorption mechanism of a natural compound, alizarin (1.2-dihydroxyanthraquinone), onto three types of microporous polymeric adsorbents (XAD-4, XAD-7. XAD-16) has been proposed using Langmuir. Freundlich and Redlich-Petersen isotherms. Adsorption capacity and optimum adsorption isotherms were predicted by linear least squares and non-linear regression method. Adsorption kinetics was proposed by pseudo-first and second second order models. The adsorption capacity of XAD-16 was the highest at 0.0424 mg/mg, with initial alizarin concentration of 200 mg/L. Pseudo-second-order kinetics was more appropriate in explaining the adsorption mechanism than pseudo-first-order. Over the studied concentration ranges. only XAD-4 adsorption can be reasonably described by the three isotherms. XAD-16 data is only best-fitted to Langmuir and Redlich-Petersen isotherms. Non-linear method proved a better way to predict the equilibrium isotherm parameters. The combination of parameters, such as specific surface area, pore diameter. polarity of the network of the resins, the solubility and polarity of the adsorbate, are the significant parameters for optimum adsorption process. Crown Copyright (C) 2008 Published by Elsevier B.V. All rights reserved.
机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R China
Choy, KKH
;
McKay, G
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Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R China
McKay, G
;
Porter, JF
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机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R China
机构:
Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsGorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
Han, YS
;
Van der Heijden, R
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机构:
Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsGorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
Van der Heijden, R
;
Verpoorte, R
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机构:
Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsGorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
机构:
Hong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R China
Choy, KKH
;
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, SAR, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R China
McKay, G
;
Porter, JF
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, SAR, Peoples R ChinaHong Kong Univ Sci & Technol, Dept Chem Engn, Clear Water Bay, Kowloon, SAR, Peoples R China
机构:
Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsGorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
Han, YS
;
Van der Heijden, R
论文数: 0引用数: 0
h-index: 0
机构:
Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsGorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands
Van der Heijden, R
;
Verpoorte, R
论文数: 0引用数: 0
h-index: 0
机构:
Gorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, NetherlandsGorlaeus Labs, Leiden Amsterdam Ctr Drug Res, Div Pharmacognosy, NL-2300 RA Leiden, Netherlands