Preparation of montmorillonite-alginate nanobiocomposite for adsorption of a textile dye in aqueous phase: Isotherm, kinetic and experimental design approaches

Hassani A., Soltani R. D. C., KARACA S., Khataee A.

JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY, cilt.21, ss.1197-1207, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 21
  • Basım Tarihi: 2015
  • Doi Numarası: 10.1016/j.jiec.2014.05.034
  • Dergi Adı: JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.1197-1207
  • Anahtar Kelimeler: Adsorption, Nanocomposite, Biocomposite, Nano-clay, Experimental design, METHYLENE-BLUE ADSORPTION, BASIC RED 46, OPERATIONAL PARAMETERS, ORGANO-MONTMORILLONITE, ACTIVATED CARBON, CATIONIC DYE, ANIONIC DYE, OPTIMIZATION, REMOVAL, COMPOSITE
  • Atatürk Üniversitesi Adresli: Evet

Özet

In the present work, adsorption of basic red 46 (BR46) by nano-sized montmorillonite (MMT)/calcium alginate (CA) composite was optimized using central composite design. The maximum dye removal of 85.07% was obtained at an initial dye concentration of 30 mg L-1, adsorbent dosage of 2 g L-1, contact time of 60 min and temperature of 25 degrees C. The adsorption capacity decreased with decreasing both initial pH and mixing speed. The pseudo-second order kinetic model had the highest correlation coefficient (R-2 = 1.00). Based on the Langmuir isotherm model, the maximum adsorption capacity of MMT/CA was about 35 mg g(-1). (C) 2014 The Korean Society of Industrial and Engineering Chemistry. Published by Elsevier B.V. All rights reserved.