Dispersion of chitosan on perlite for enhancement of copper(II) adsorption capacity

Hasan, Shameem; Ghosh, Tushar K.; Viswanath, Dabir S.; Boddu, Veera M.

doi:10.1016/j.jhazmat.2007.07.078

Cited by 148 publications

(77 citation statements)

References 44 publications

(46 reference statements)

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“…Chitosan is known to have a tendency to form a gel or agglomerate in aqueous media, and its amine groups are generally considered as main active sites which are responsible for the high adsorption potential for metals (Hasan et al 2008). In order to increase the adsorption capacity of chitosan, it is widely spread on physical supports that help to enhance the accessibility of metal binding amine sites (Dambies et al 2002;Elwakeel 2010;Guibal et al 1998).…”

Section: Preparation Of the Chitosan-immobilized Pumice As A Sorbentmentioning

confidence: 99%

“…Among all the biosorbents, chitosan has importance due to its many features like being one of the most abundant natural biopolymers, hydrophilic, nontoxic, biodegradable structure, regeneration, and recycling potential and having the ability to form complexes with metals (Elwakeel 2010;Hasan et al 2008). As a consequence of the last feature, many studies regarding the removal of metal ions from water can be found in the literature.…”

Section: Introductionmentioning

confidence: 99%

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Chitosan-Immobilized Pumice for the Removal of As(V) from Waters

Turan

Kocahakimoglu

Boyacı

et al. 2014

Water Air Soil Pollut

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A novel sorbent, chitosan-immobilized pumice, has been prepared for the sorption of As(V) from waters prior to its determination by hydride generation atomic absorption spectrometry. The success of the immobilization has been checked with such characterization techniques as scanning electron microscopy, thermal gravimetric analysis, and elemental analysis. Points of zero charge of the sorbents were determined with potentiometric mass titration. Batch-type equilibration studies have shown that the novel sorbent can be employed at a wide pH range resulting in quantitative sorption (>90 %) at pH 3.0-7.0 and greater than 70 % sorption at pH >8.0. These results demonstrate the advantage of immobilizing chitosan onto pumice, because, under the same conditions, pumice displays <20 % sorption toward As(V), whereas chitosan gives approximately 90 % sorption only at pH 3.0. The validity of the method was verified through the analysis of ultrapure, bottled drinking, and tap water samples spiked with arsenate; the respective sorption percentages of 93.2 (±0.7), 89.0 (±1.0), and 80.9 (±1.3) were obtained by batch-type equilibration. Arsenic sorption was also examined in the presence of common interfering ions resulting in competing effects of PO 4 3− and NO 3 − on As(V) adsorption.

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Section: Preparation Of the Chitosan-immobilized Pumice As A Sorbentmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Chitosan-Immobilized Pumice for the Removal of As(V) from Waters

Turan

Kocahakimoglu

Boyacı

et al. 2014

Water Air Soil Pollut

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“…Due to that, these samples can be used to clean up at this concentration of pollutants, even those that meet the standard of the Pb (II) set by the EPA of 0.005mg.L -1 for drinking & 0.05 mg.L -1 for waste water. The uptake capacity of metal ions & the adsorption mechanism involved depend on the surface charge of the adsorbent, the speciation of the adsorbate especially BET surface area & total pore volume (Hasan et al, 2008). Because the positively charged metal ions in a solution were adsorbed on the negative surface & thus the percentage removal of a metal ions increased with increasing BET surface area & total pore volume (results are shown in Table 2).…”

Section: Resultsmentioning

confidence: 99%

An Eco-Friendly Process for Removal of Lead from Aqueous Solution

Smail¹,

Shareef

Ramli³

2017

MAS

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The adsorption of lead (Pb II) ion on different types of synthesized zeolite was investigated. The BET surface area, total pore volume & average pore size distribution of these synthesized zeolites were determined by adsorption isotherms for N2, the surface area & total pore volume of their sources were found by adsorption isothermN2.The adsorption equilibrium was measured after 24h at room temperature ( The atomic absorption spectrometry was used for analysis of lead heavy metal ion, the obtained results in this study showed that the different synthesized zeolites were efficient ion exchanges for removing heavy metal, in particular, the modified zeolite from shale clay by oxalic acid.

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“…(Arh-Hwang et al, 2008;Tomczak, 2013). Waste streams containing Cu(II) originated from a variety of industries among others: meishing and copper electroplating, which cause a significant threat to aquatic life and make natural water unsuitable for public use (Alimohamadi et al, 2005;Hasan et al, 2008).…”

Section: Introductionmentioning

confidence: 99%

“…Chitosan is a low cost natural material, used for biosorption of heavy metal ions (Alimohamadi et al, 2005;Chen et al, 2008;Hasan et al, 2008;Norton et al, 2004;Sevil and Alyuz, 2007). Chitosan is a derivative of chitin, which can be extracted from fungi, and in large quantities, from the exoskeleton of crustaceans such as crabs, shrimps, krill and crawfish.…”

Section: Introductionmentioning

confidence: 99%

Equilibrium modeling of mono and binary sorption of Cu(II) and Zn(II) onto chitosan gel beads

Nastaj

Tuligłowicz

Witkiewicz

2016

Chemical and Process Engineering

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The objective of the work are in-depth experimental studies of Cu(II) and Zn(II) ion removal on chitosan gel beads from both one-and two-component water solutions at the temperature of 303 K. The optimal process conditions such as: pH value, dose of sorbent and contact time were determined. Based on the optimal process conditions, equilibrium and kinetic studies were carried out. The maximum sorption capacities equaled: 191.25 mg/g and 142.88 mg/g for Cu(II) and Zn(II) ions respectively, when the sorbent dose was 10 g/L and the pH of a solution was 5.0 for both heavy metal ions. One-component sorption equilibrium data were successfully presented for six of the most useful three-parameter equilibrium models: Langmuir-Freundlich, Redlich-Peterson, Sips, Koble-Corrigan, Hill and Toth. Extended forms of Langmuir-Freundlich, Koble-Corrigan and Sips models were also well fitted to the two-component equilibrium data obtained for different ratios of concentrations of Cu(II) and Zn(II) ions (1:1, 1:2, 2:1). Experimental sorption data were described by two kinetic models of the pseudo-first and pseudo-second order. Furthermore, an attempt to explain the mechanisms of the divalent metal ion sorption process on chitosan gel beads was undertaken.

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Dispersion of chitosan on perlite for enhancement of copper(II) adsorption capacity

Cited by 148 publications

References 44 publications

Chitosan-Immobilized Pumice for the Removal of As(V) from Waters

Chitosan-Immobilized Pumice for the Removal of As(V) from Waters

An Eco-Friendly Process for Removal of Lead from Aqueous Solution

Equilibrium modeling of mono and binary sorption of Cu(II) and Zn(II) onto chitosan gel beads

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