Removal of cobalt(II) ion from aqueous solution by chitosan–montmorillonite

Wang, Hailin; Tang, Haoqing; Liu, Zhao‐Tie; Zhang, Xin; Zhang, Hao; Liu, Zhao‐Tie

doi:10.1016/j.jes.2014.06.021

Cited by 87 publications

(15 citation statements)

References 28 publications

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“…Montmorillonite (MMT), the main component of bentonite, is a layered aluminosilicate mineral that belongs to the montmorillonite/smectite group of clay minerals. Chitosan/ montmorillonite composite prepared by different approaches has successfully employed to adsorb dye 30 , Cobalt (II) 31 , Copper (II) 32 , and tannic acid 33 . However, there have been few reports for using chitosan/montmorillonite composite as an adsorbent to remove silver ion from aqueous solution.…”

Section: Introductionmentioning

confidence: 99%

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Jintakosol

Nitayaphat

2016

Mat. Res.

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Chitosan/montmorillonite (CTS-MMT) composite beads were used as adsorbents for the removal of silver ion (Ag + ) from aqueous solution. Equilibrium adsorption was achieved within 150 min at 3% MMT of chitosan solution. The optimum pH value for Ag + removal was found to be 6-7. The maximum adsorbent dosage for Ag + removal was 5 g/L. Under above maximum conditions the Ag + removal was 95.7%. The maximum adsorption capacities of CTS and CTS-MMT composite beads as obtained from Langmuir isotherm were found to be 38.46 and 43.48 mg/g, respectively. The adsorption kinetic agrees well with the pseudo second order model. The Ag + desorption of CTS-MMT composite bead was 17.39% at pH=4. SEM/EDX images confirm that after adsorption the Ag + were dispersed onto the composite bead surface. The adsorption and desorption experiment demonstrated that the CTS-MMT composite beads can be used as an effective adsorbents for removal of Ag + from aqueous solution.

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Section: Introductionmentioning

confidence: 99%

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Jintakosol

Nitayaphat

2016

Mat. Res.

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“…A comparison of the maximum Cu(II), Co(II) and Ni(II) adsorption capacity, q max (mg/g) on CMA and some other chitosan and chitosanbased materials as adsorbents reported in the literatures [36][37][38][39][40][41][42][43][44][45][46][47] are shown in Table 3. In the present work, the q max of CMA were 195 (sites A and B), 220 (site C), and 340 (sites B and C) mg/g, respectively which were comparable and indicated that CMA solid phase had a high sorption capacity and excellent performance towards Cu(II), Co(II) and Ni(II) attributed to its high specific area, widely distributed pores, and plenty of powerful chelating groups.…”

Section: Comparison Of Biosorption Capacity Of Cma With Reported Adsomentioning

confidence: 99%

Adsorption of Co(II), Ni(II) and Cu(II) ions onto chitosan-modified poly(methacrylate) nanoparticles: Dynamics, equilibrium and thermodynamics studies

Shaker

2015

Journal of the Taiwan Institute of Chemical Engineers

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“…In many cases the pseudo-first order model failed to describe the adsorption kinetic data Gupta 2006, 2011;Akar et al 2009;Chen and Zhao 2009;Koswojo et al 2010;Kurniawan et al 2011;Toor and Jin 2012;Vanamudan et al 2014;Wang et al 2014;Dos Santos et al 2015). Kurniawan et al (2011) found the inconsistency of the fitted value of parameter k 1 with its physical meaning, the value of k 1 , increase with the increasing of initial solute concentration, hence the pseudo-first order model is not the correct choice to represent the kinetic experimental data.…”

Section: The Pseudo-first Order Kineticmentioning

confidence: 99%

“…In most adsorption systems using clay minerals and its modified forms as the adsorbents, the pseudo-second order kinetic model could represent the experimental data much better than the pseudo-first order kinetic Gupta 2006, 2011;Tsai et al 2007;Akar et al 2009;Chen and Zhao 2009;Koswojo et al 2010;Kul and Koyuncu 2010;Kurniawan et al 2011;Toor and Jin 2012;Auta and Hameed 2012;Lv et al 2014;Vanamudan et al 2014;Wang et al 2014;Dos Santos et al 2015). A potential advantage of the pseudo-second order equation as an expression estimating the q e values is its small sensitivity to the influence of the random experimental error (Plazinzki et al 2009).…”

Section: The Pseudo-second Order Kineticmentioning

confidence: 99%

“…The intra particle diffusion model could represent the adsorption kinetic data quite well for several systems such as congo red-nano clay filled composite hydrogels and methyl violet-nano clay filled composite hydrogels (Bhattacharyya and Ray 2015), Basic yellow 28-amidated pectin/montmorillonite composite (Nesic et al 2014), Rhodamine 6G-chitosan-g-(N-vinyl pyrrolidone)/montmorillonite composite (Vanamudan et al 2014), Cobalt(II)-chitosan-montmorillonite (Wang et al 2014), Indigo carmine-CdSe montmorillonite composite (Chikate and Kadu 2014), picloram herbicide-montmorillonite (Marco-Brown et al 2014), phenol and cathecol-gemini surfactant modified montmorillonite …”

Section: Intraparticle Diffusion Modelmentioning

confidence: 99%

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The Kinetic Studies in the Adsorption of Hazardous Substances Using Clay Minerals

Ismadji

Soetaredjo

Ayucitra

2015

SpringerBriefs in Molecular Science

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For the design of the adsorption system, reliable adsorption kinetic data are required. Different concepts are employed to develop a reliable adsorption kinetic model. Most of the available models were developed according to mass transfer principles or the concept of chemical reaction occurring on the surface of a solid. The models based on the surface-reaction kinetic step as controlling the sorption rate have also been proposed, these models include pseudo-first order kinetic (also called as Lagergren model), pseudo-second order kinetic, and Elovich equation. This chapter discusses various aspects of pseudo-first order kinetic and pseudo-second order kinetic in representing the adsorption kinetic data of some hazardous compounds onto clay minerals. The pseudo-first order kinetic is the earliest known equation to describe the rate of sorption in the liquid phase system. The behavior of time constant parameters k 1 and k 2 of pseudo-first order kinetics and pseudo-second order kinetics as a function of initial concentration as well as the temperature is discussed in this chapter. One of the kinetic models which also widely used to represent the sorption kinetic data is an intraparticle diffusion model also briefly discussed in this chapter.Keywords Adsorption kinetic · Pseudo-first · Pseudo-second · Intraparticle diffusion Adsorption kinetics are expressed as the solute removal rate that controls the residence time of the solute in the solid-solution interface. Reliable sorption kinetic data are of substantial value for adsorption separation system design. Various models have been developed to adequately describe the kinetics of sorption of the solid-liquid system. However, due to its complexity compared to the description of adsorption equilibria, the progress of development of various sorption kinetics appears to be limited. In general, the adsorption of solute from aqueous solution

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Removal of cobalt(II) ion from aqueous solution by chitosan–montmorillonite

Cited by 87 publications

References 28 publications

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Adsorption of Silver (I) From Aqueous Solution Using Chitosan/Montmorillonite Composite Beads

Adsorption of Co(II), Ni(II) and Cu(II) ions onto chitosan-modified poly(methacrylate) nanoparticles: Dynamics, equilibrium and thermodynamics studies

The Kinetic Studies in the Adsorption of Hazardous Substances Using Clay Minerals

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