Corrigendum to “Comparative evaluation of adsorption kinetics and isotherms of a natural product removal by Amberlite polymeric adsorbents” [Chem. Eng. J. 146 (2009) 370–376]

Abdullah, Maha; Chiang, L.; Nadeem, Muhammad

doi:10.1016/j.cej.2009.07.027

Cited by 13 publications

(12 citation statements)

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“…K F is related to the adsorption capacity, meanwhile n F is depend on the energy or intensity of the adsorption and reveals the favorability of the adsorption procedure. 41 According to previous theory, 39 n F ¼ 1 represents the adsorption is linear, n F > 1 represents the adsorption is a chemical process and n F < 1 represents the adsorption is a favorable physical process.…”

Section: Adsorption Of Aromatic Amine Compoundsmentioning

confidence: 99%

Preparation of bimodal porous copolymer containing β‐cyclodextrin and its inclusion adsorption behavior

Sun

Shen

Cao

et al. 2010

J of Applied Polymer Sci

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A novel insoluble bimodal porous polymer containing b-cyclodextrin (b-CD) was prepared to adsorb aromatic amine compound. The process involved copolymerization of styrene and methyl methacrylate with a maleic acid derivative of b-CD, subsequently, above formed copolymer was foamed by supercritical CO 2 . The chemical properties and physical structure of obtained copolymer was analyzed using Fourier transform infrared spectra, Thermal gravimetric analysis, X-ray diffraction, scanning electron microscope, and N 2 adsorption techniques. The inclusion adsorption of aromatic amine compounds on b-CD copolymer was carried out in a batch system. The quantities of aromatic amine compounds adsorbed on b-CD copolymer reached equilibrium within 60 min. The adsorption kinetic could be fitted to a pseudo-secondorder kinetic equation, and the linear correlation coefficients varied from 0.9828 to 0.9935. With the influence of molecular structure and hydrophobicity of the aromatic amine compound, the sequence of quantity of aromatic amine compounds adsorbed on b-CD copolymer is p-toluidine > aniline > benzidine > o-toluidine. The adsorption equilibrium data of aromatic amine compound adsorbed on b-CD copolymer were fitted to Freundlich and Langmuir models, respectively. The linear correlation coefficients of Langmuir model varied from 0.9516 to 0.9940, and the linear correlation coefficients of Freundlich varied from 0.9752 to 0.9976. It is concluded that Freundlich model fits better than Langmuir model, because the adsorption of aromatic amine compound on b-CD copolymer is a chemical process.

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Section: Adsorption Of Aromatic Amine Compoundsmentioning

confidence: 99%

Preparation of bimodal porous copolymer containing β‐cyclodextrin and its inclusion adsorption behavior

Sun

Shen

Cao

et al. 2010

J of Applied Polymer Sci

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“…Adsorption isotherm is essential to characterize a separation process as it can be used to evaluate the adsorption performance, reveal the involved mechanism, and deduce the theoretical adsorption capacity [17].…”

Section: Adsorption Isothermmentioning

confidence: 99%

Single-Step Preparative Extraction of Artemisinin from Artemisia annua by Charcoal Column Chromatography

Luo

Kong

2011

Chromatographia

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Activated charcoal column chromatography was successfully applied for preparative extraction of artemisinin with high-purity from Artemisia annua L. in one single run for the first time in this study. The adsorption kinetics study showed that powdery activated charcoal had high adsorption speed for artemisinin. The experimental adsorption data fitted well using the Langmuir adsorption model. The optimal parameters for the extraction of artemisinin were obtained using a column packed with activated charcoal: the loading amount, 1 g extract/ 5 g activated charcoal; the elution mode, CH 2 Cl 2 -MeOH (2:5, v/v) for 5 BV (bed volume) after the removal of some impurities with CH 2 Cl 2 -MeOH (1:10, v/v). With this optimized condition, artemisinin was finally obtained with purity at 95.2% and the recovery at 72.3%. The developed technique would provide a feasible large-scale method for the extraction of artemisinin in pharmaceutical industry.

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“…The commercial Amberlite XAD-4 resin is one of the best synthetic polymeric adsorbents for removal of phenolic compounds from wastewater [9,10]. However, it holds much lower adsorption capability towards organic compounds exhibiting a hydrophilic affinity to water due to its hydrophobic surface.…”

Section: Introductionmentioning

confidence: 99%

Removal of p-nitrophenol by a water-compatible hypercrosslinked resin functionalized with formaldehyde carbonyl groups and XAD-4 in aqueous solution: A comparative study

Huang

Chen

Huang

2009

Journal of Colloid and Interface Science

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Corrigendum to “Comparative evaluation of adsorption kinetics and isotherms of a natural product removal by Amberlite polymeric adsorbents” [Chem. Eng. J. 146 (2009) 370–376]

Cited by 13 publications

References 0 publications

Preparation of bimodal porous copolymer containing β‐cyclodextrin and its inclusion adsorption behavior

Preparation of bimodal porous copolymer containing β‐cyclodextrin and its inclusion adsorption behavior

Single-Step Preparative Extraction of Artemisinin from Artemisia annua by Charcoal Column Chromatography

Removal of p-nitrophenol by a water-compatible hypercrosslinked resin functionalized with formaldehyde carbonyl groups and XAD-4 in aqueous solution: A comparative study

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