Adsorption kinetics and isotherms of pesticides onto activated carbon-cloth

Ayranci E., Hoda N.

CHEMOSPHERE, vol.60, no.11, pp.1600-1607, 2005 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 60 Issue: 11
  • Publication Date: 2005
  • Doi Number: 10.1016/j.chemosphere.2005.02.040
  • Journal Name: CHEMOSPHERE
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1600-1607
  • Keywords: adsorption, ametryn, aldicarb, dinoseb, diuron, carbon-cloth, water treatment, COMPETITIVE ADSORPTION, AQUEOUS-SOLUTIONS, WASTE-WATERS, REMOVAL, ELECTRODES, ELECTROSORPTION, PURIFICATION, EQUILIBRIUM, BEHAVIOR, ATRAZINE
  • Akdeniz University Affiliated: Yes

Abstract

Adsorption of pesticides ametryn, aldicarb, dinoseb and diuron from aqueous solution onto high specific area activated carbon-cloth was studied. Kinetics of adsorption was followed by in situ UV-spectroscopy and the data were treated according to various rate models. The extent of adsorption was determined at the end of 125 min adsorption period. Rate constants and the extent of adsorption for the four pesticides were found to follow the order: dinoseb > ametryn > diuron > aldicarb. Adsorption isotherms were derived at 25 degrees C on the basis of batch analysis. Isotherm data were treated according to Langmuir and Freundlich models. The fits of experimental data to these equations were examined. The types of interactions between the surface and pesticide molecules were discussed. (C) 2005 Elsevier Ltd. All rights reserved.