Adsorptive removal of Hg(II) ions from aqueous solutions using chemical-modified peanut hull powder

• Autorzy: Ding Z. , Yu R. , Hu X. , Chen Y.
• Języki publikacji: EN

Abstrakty

EN

Peanut hull powders were chemically modified using mercaptoacetic acid to develop a convenient, lowcost, and highly efficient adsorbent for the removal of Hg(II) from aqueous solutions. A pseudo-second-order rate equation fitted the kinetic data better than a pseudo-first-order rate equation did for both the raw and the mercapto-modified peanut hull powder. The equilibrium data for both the raw and the mercapto-modified peanut hull powder fitted well with the Langmuir, Freundlich, and Temkin isotherm models. Mercapto-modification improved the adsorption capacity of Hg(II) onto peanut hull powder. Fourier-transform infrared spectra revealed that mercapto groups, together with hydroxyl and carboxyl groups, were the main function groups of Hg(II) biosorption onto chemical-modified peanut hull powder.

• Wydawca: -
• Czasopismo: Polish Journal of Environmental Studies
• Rocznik: 2014
• Tom: 23
• Numer: 4
• Opis fizyczny: p.1115-1121,fig.,ref.

Twórcy

autor

Ding Z.

• School of Environment, Nanjing University of Technology, 200 Zhongshanbei Road, Nanjing 210009, P.R. China

autor

Yu R.

• School of Environment, Nanjing University of Technology, 200 Zhongshanbei Road, Nanjing 210009, P.R. China

autor

Hu X.

• State Key Laboratory of Analytical Chemistry for Life Science, Center of Material Analysis and School of Chemistry and Chemical Engineering, Nanjing University, 20 Hankou Road, Nanjing 210093, P.R. China

autor

Chen Y.

• State Key Laboratory of Analytical Chemistry for Life Science, Center of Material Analysis and School of Chemistry and Chemical Engineering, Nanjing University, 20 Hankou Road, Nanjing 210093, P.R. China

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