Preparation and characterization of activated carbon from Amygdalus Scoparia shell by chemical activation and its application for removal of lead from aqueous solutions

• Autorzy: Sayed Mohammadi , Mohammad Karimi , Daryoush Afzali , Fatemeh Mansouri
• Języki publikacji: EN

Abstrakty

EN

Two series of activated carbon have been prepared by chemical activation of Amygdalus Scoparia shell with phosphoric acid or zinc chloride for the removal of Pb(II) ions from aqueous solutions. Several methods were employed to characterize the active carbon produced. The surface area was calculated using the standard Brunauer-Emmet-Teller method. The microstructures of the resultant activated carbon were observed by scanning electron microscopy. The chemical composition of the surface resultant activated carbon was determined by Fourier transform infrared spectroscopy. In the batch tests, the effect of pH, initial concentration, and contact time on the adsorption were studied. The data were fitted with Langmuir and Freundlich equations to describe the equilibrium isotherms. The maximum adsorption capacity of Pb(II) on the resultant activated carbon was 36.63 mg g−1 with H3PO4 and 28.74 mg g−1 with ZnCl2. To regenerate the spent adsorbents, desorption experiments were performed using 0.25 mol L−1 HCl. Here we propose that the activated carbon produced from Amygdalus Scoparia shell is an alternative low-cost adsorbent for Pb(II) adsorption.

Słowa kluczowe

EN

Chemical activation; Activated carbon; Lead; Amygdalus Scoparia shell; Agriculture waste

• Czasopismo: Open Chemistry
• Rocznik: 2010
• Tom: 8
• Numer: 6
• Strony: 1273-1280

Daty

wydano

2010-12-01

online

2010-10-08

Twórcy

autor

Sayed Mohammadi

• Department of Chemistry, Payame Noor University (PNU), 7616914117, Kerman, Iran,

autor

Mohammad Karimi

• Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL), Faculty of Science, Payame Noor University (PNU), 7816898148, Sirjan, Iran

autor

Daryoush Afzali

• Environment & Nanochemistry Department, Institute Research of Environmental Sciences, International Center for Science, High Technology & Environmental Sciences, 7619817511, Kerman, Iran

autor

Fatemeh Mansouri

• Department of Chemistry & Nanoscience and Nanotechnology Research Laboratory (NNRL), Faculty of Science, Payame Noor University (PNU), 7816898148, Sirjan, Iran

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Identyfikatory

DOI

10.2478/s11532-010-0106-z