Immobilisation of tannic acid onto activated carbon to improve Fe(III) adsorption

ÜÇER A., Uyanik A., Cay S., Ozkan Y.

SEPARATION AND PURIFICATION TECHNOLOGY, cilt.44, sa.1, ss.11-17, 2005 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 44 Sayı: 1
  • Basım Tarihi: 2005
  • Doi Numarası: 10.1016/j.seppur.2004.11.011
  • Dergi Adı: SEPARATION AND PURIFICATION TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.11-17
  • Anahtar Kelimeler: adsorption, immobilisation, heavy metal ions, activated carbon, tannic acid, HEAVY-METAL IONS, AQUEOUS-SOLUTIONS, CADMIUM ADSORPTION, HUMIC SUBSTANCES, WASTE-WATER, REMOVAL, BINDING, COPPER, RECOVERY, CATIONS
  • Ondokuz Mayıs Üniversitesi Adresli: Hayır

Özet

In this study, commercially available tannic acid was employed in the modification of the surface properties of granulated activated carbon and optimum experimental parameters such as pH, contact time, initial concentration, adsorption capacity and adsorption isotherms for (a) tannic acid immobilisation onto activated carbon and (b) Fe(III) adsorption on tannic acid-activated carbon combination were determined at room temperature. Adsorption of Fe(III) on granulated activated carbon alone was also determined to compare the experimental results. Tannic acid was found effective to enhance the metal adsorption capacity of activated carbon surfaces. The Langmuir isotherm equation was found to provide reasonable well fit for the tannic acid-activated carbon and Fe(Ill)-tannic acid-activated carbon combinations. (C) 2004 Elsevier B.V All rights reserved.