SYNTHESIS AND CHARACTERIZATION OF CADMIUM SULFIDE NANOPARTICLE-LOADED ACTIVATED CARBON AS A NOVEL ADSORBENT FOR EFFICIENT REMOVAL OF REACTIVE ORANGE 12

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Ghaedi M., Pebdani A. A., Sadeghian B., Sahraei R., Daneshfar A., DURAN C.

CHEMICAL ENGINEERING COMMUNICATIONS, vol.200, no.8, pp.1071-1088, 2013 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 200 Issue: 8
  • Publication Date: 2013
  • Doi Number: 10.1080/00986445.2012.737875
  • Journal Name: CHEMICAL ENGINEERING COMMUNICATIONS
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.1071-1088
  • Karadeniz Technical University Affiliated: Yes

Abstract

The objective of this study was to evaluate the adsorption potential of cadmium sulfide nanoparticleloaded activated carbon (CdSN-AC) for removal of reactive orange 12 (RO-12) dyestuffs from aqueous solutions. The characterization of CdSN-AC was performed by X-ray diffraction (XRD), transmission electron microscopy (TEM), and field emission scanning electron microscopy (FESEM) techniques. The effects of experimental parameters such as initial solution pH, contact time, initial RO-12 concentration, amount of CdSN-AC, and temperature on the adsorption process were evaluated in detail. The kinetic studies indicated that the adsorption process was best described by the pseudo-second-order kinetics model. The experimental data were analyzed by the Langmuir, Freundlich, and Tempkin isotherm models, and the monolayer adsorption capacity of CdSN-AC was found to be 150.0mgg1 by using the Langmuir isotherm model. The thermodynamic parameters indicated that the adsorption of RO-12 onto CdSN-AC was feasible, spontaneous, and endothermic in nature.