Equilibrium and kinetic studies on the removal of basic dye using raw and thermal-activated fatsa bentonite

Eren E., ÇAĞLAR B., EREN B., Tabak A.

Fresenius Environmental Bulletin, cilt.19, sa.5, ss.773-782, 2010 (SCI-Expanded) identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 5
  • Basım Tarihi: 2010
  • Dergi Adı: Fresenius Environmental Bulletin
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.773-782
  • Anahtar Kelimeler: Adsorption thermodynamics, Dye adsorption, Kinetic data, Thermal activation, X-ray diffraction
  • Ondokuz Mayıs Üniversitesi Adresli: Evet

Özet

The adsorption behavior of crystal violet (CV+) from aqueous solution onto raw Fatsa (RFB) and thermalactivated Fatsa (TAFB) bentonite samples was investigated as a function of parameters, such as pH, temperature, initial CV+ concentration and contact time. X-ray diffraction (XRD) and differential thermal analysis (DTA) were used for structural and thermal characterization. The Langmuir and Freundlich adsorption models were applied to describe the equilibrium isotherms. The pseudo-first-order, pseudosecond-order kinetic and intra-particle diffusion models were used to describe the kinetic data. © by PSP.