Comparative adsorption of Pb(II) and Cd(II) ions on chestnut shell in aqueous system

In this study, high capacity Chestnut shell, a waste product from the chestnut sugar production industry, was successfully applied to remove Pb (II) and Cd (II) ions from aqueous solutions. Maximum adsorption capacities were found as 541.25 mg/g and 75.86 mg/g for Pb(II), and Cd(II) respectively. Se...

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Published in:Chemistry and ecology 2018-08, Vol.34 (7), p.640-654
Main Authors: Çetinkaya, Sema, Targan, Şerif, Tirtom, V. Nüket
Format: Article
Language:English
Subjects:
Adsorbents
Adsorption
Cadmium
Capacity
Chestnut
chestnut shell
Constants
Electron microscopy
Enthalpy
Entropy
Free energy
Heavy metals
Ions
Lead
Metal concentrations
Parameters
Removal
Saccharides
Scanning electron microscopy
Solutions
Sugar
Wastewater
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cited_by cdi_FETCH-LOGICAL-c338t-6aba4caf1703b90c668d8cde521e173701424993a82ef66b2fa6a79ca19d504b3
cites cdi_FETCH-LOGICAL-c338t-6aba4caf1703b90c668d8cde521e173701424993a82ef66b2fa6a79ca19d504b3
container_end_page 654
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container_title Chemistry and ecology
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creator Çetinkaya, Sema
Targan, Şerif
Tirtom, V. Nüket
description In this study, high capacity Chestnut shell, a waste product from the chestnut sugar production industry, was successfully applied to remove Pb (II) and Cd (II) ions from aqueous solutions. Maximum adsorption capacities were found as 541.25 mg/g and 75.86 mg/g for Pb(II), and Cd(II) respectively. Several important parameters influencing the adsorption of Pb(II) and Cd(II) ions such as contact time, pH, temperature and effect of metal concentration were investigated systematically by batch experiments. Langmuir and Freundlich adsorption models were used to describe adsorption isotherms and constants. The thermodynamic parameters, such as standard free energy (ΔG°), standard enthalpy (ΔH°), and standard entropy (ΔS°), of the adsorption process were calculated. The adsorbents were characterised by scanning electron microscopy. It has been observed from the experimental results that in case of both Cd (II) and Pb (II), pseudo 2nd order kinetic model. From the results, Chestnut Shell are considered as an effective, low cost and environmental friendly adsorbent for the removal of Pb (II) and Cd (II) from wastewater.
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source Taylor and Francis Science and Technology Collection
subjects Adsorbents
Adsorption
Cadmium
Capacity
Chestnut
chestnut shell
Constants
Electron microscopy
Enthalpy
Entropy
Free energy
Heavy metals
Ions
Lead
Metal concentrations
Parameters
Removal
Saccharides
Scanning electron microscopy
Solutions
Sugar
Wastewater
title Comparative adsorption of Pb(II) and Cd(II) ions on chestnut shell in aqueous system
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