Adsorption of Disperse Orange 30 dye onto activated carbon derived from Holm Oak (Quercus Ilex) acorns: A 3k factorial design and analysis

TEZCAN ÜN Ü., ATEŞ F., ERGİNEL N., Ozcan O., Oduncu E.

Journal of Environmental Management, vol.155, pp.89-96, 2015 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 155
  • Publication Date: 2015
  • Doi Number: 10.1016/j.jenvman.2015.03.004
  • Journal Name: Journal of Environmental Management
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.89-96
  • Keywords: Holm Oak acorns, Activated carbon, Factorial design, Dye removal, CHEMICAL ACTIVATION, AQUEOUS-SOLUTIONS, WASTE, PYROLYSIS, REMOVAL, WOOD, CHITOSAN, STONES, PHENOL, TEA
  • Anadolu University Affiliated: Yes

Abstract

© 2015 Elsevier Ltd.In this study, samples of activated carbon were prepared from Holm Oak acorns by chemical activation with H3PO4, ZnCl2 and KOH as activating agents. The samples were characterized by SEM, BET, FTIR and elemental analysis, and were then evaluated for the removal of Disperse Orange 30 (DO30) dyes from aqueous solutions. A 3k factorial design was used to determine the interaction effects of carbonization temperature, pH, dosage of adsorbent and type of activating agent on the amount of dye removal. Also, level of effectiveness factors were determined by conducting regression models for maximum adsorption efficiency. Of all the samples, the sample generated using ZnCl2 as an activating agent showed a maximum dye removal efficiency of 93.5% at a carbonization temperature of 750°C, a pH of 2 and an adsorbent dosage of 0.15g/25ml. The analysis shows that the adsorption process depends significantly on the type of activating agent used in the preparation of activated carbon.