Removal of heavy metal ions by using dithiocarbamated-sporopollenin

Ünlü, Nuri; Ersöz, Mustafa

doi:10.1016/j.seppur.2006.05.026

Cited by 155 publications

(31 citation statements)

References 25 publications

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“…In addition, the decrease of the fluid viscosity and then decrease of the resistance against As(III) diffusion into sorbent pores may cause to increase the As(III) adsorption capacity. These results were also reported by other researchers [59][60][61][62].…”

Section: The Effect Of the Temperature And As(iii) Initial Concentrationsupporting

confidence: 91%

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Removal of Arsenic (III) from natural contaminated water using magnetic nanocomposite: kinetics and isotherm studies

et al. 2016

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Section: The Effect Of the Temperature And As(iii) Initial Concentrationsupporting

confidence: 91%

“…The thermodynamic parameters, i.e. enthalpy change (∆H°), entropy change (∆S°) and free energy change (∆G°) can be estimated according to [61]:…”

Section: Effect Of Thermodynamic Parameters On Arsenic Removalmentioning

confidence: 99%

Removal of Arsenic (III) from natural contaminated water using magnetic nanocomposite: kinetics and isotherm studies

et al. 2016

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“…The heat of adsorption value between 20 and 400 kJ/mol indicates the chemisorption process. Hence both the metal ion adsorption is chemical in nature [64]. The negative value S 0 (Table 7) for the adsorption of Cd(II) suggests decreased randomness at the solid/solution interface and a decrease in the degree of freedom of the adsorbed species.…”

Section: Effect Of Temperature On Thermodynamic Properties For Adsorpmentioning

confidence: 98%

Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina

Naiya

Bhattacharya

Das

2009

Journal of Colloid and Interface Science

435

143

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“…The positive values of DH• further confi rmed the endothermic nature of the adsorption process. The heat of adsorption value between 20 and 400 kJ/mol indicates the chemisorption process (Unlu and Ersoz 2007). Hence, the adsorption of Cu 2+ on clay soil and modifi ed clay soil was chemical in nature.…”

Section: δG° =δH° -Tδs-tdsmentioning

confidence: 99%

Removal of copper from copper-contaminated river water and aqueous solutions using Methylobacterium extorquens modified Erzurum clayey soil

Çelebi¹,

Nadaroğlu²,

Kalkan³

et al. 2016

Archives of Environmental Protection

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Abstract:The objective of this study was to investigate the possibility of using natural and bacteria-modifi ed Erzurum clayey soil with Methylobacterium extorquens as an alternative to high cost commercial adsorbent materials for the removal of copper from aqueous solution. The copper concentrations in the samples of the polluted river water and CuCl 2 solutions treated by the natural and bacteria-modifi ed Erzurum clayey soil (ECS) have been determined by spectrophotometric method. Firstly, the surface of ECS was modifi ed with M. extorquens and surface functionality was increased. Then, the adsorption of Cu (II) from solution phases was studied with respect to varying metal concentration, pH, and temperature and agitation time. The maximum adsorption of Cu (II) for natural and bacteria-modifi ed Erzurum clayey soil was observed at pH: 5.0. At different copper concentrations, copper adsorption analysis was performed on 1 g using clay soil or modifi ed clay soil. Maximum adsorption of Cu (II) was obtained as 45.7 and 48.1 mg g -1 at initial concentration (50 mg/50 mL) and optimal conditions by natural and bacteria-modifi ed clay soil, respectively. The copper concentration was decreased in the substantial amount of the leachates solutions of natural and bacteria-modifi ed clay soil. Langmuir and Freundlich isotherms were used to describe the adsorption behavior of Cu (II) ions. The results showed that modifi ed clay soil had a high level of adsorption capacity for copper ion. The various thermodynamic parameters such as ΔG°, ΔH° and ΔS° were analyzed to observe the nature of adsorption. The structural properties of the natural and bacteria-modifi ed-ECS have been characterized by SEM, FTIR and XRD techniques. Consequently, it was concluded that the bacteria--modifi ed clay soil could be successfully used for the removal of the copper ions from the aqueous solutions.

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Removal of heavy metal ions by using dithiocarbamated-sporopollenin

Cited by 155 publications

References 25 publications

Removal of Arsenic (III) from natural contaminated water using magnetic nanocomposite: kinetics and isotherm studies

Removal of Arsenic (III) from natural contaminated water using magnetic nanocomposite: kinetics and isotherm studies

Adsorption of Cd(II) and Pb(II) from aqueous solutions on activated alumina

Removal of copper from copper-contaminated river water and aqueous solutions using Methylobacterium extorquens modified Erzurum clayey soil

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