Experimental Study to Remediate Acid Fuchsin Dye Using Laccase-Modified Zeolite from Aqueous Solutions

KALKAN E., NADAROĞLU H., ÇELEBİ N., Celik H., Tasgin E.

POLISH JOURNAL OF ENVIRONMENTAL STUDIES, cilt.24, sa.1, ss.115-124, 2015 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 24 Sayı: 1
  • Basım Tarihi: 2015
  • Doi Numarası: 10.15244/pjoes/23797
  • Dergi Adı: POLISH JOURNAL OF ENVIRONMENTAL STUDIES
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.115-124
  • Anahtar Kelimeler: acid fuchsin dye removal, laccase-modified zeolite, adsorption isotherms, adsorption kinetics, ADSORPTION-KINETICS, METHYLENE-BLUE, WASTE-WATER, CONGO RED, REMOVAL, EQUILIBRIUM, BIOSORPTION, ADSORBENTS, DEGRADATION, PHOSPHATE
  • Atatürk Üniversitesi Adresli: Evet

Özet

This paper studies, the removal of acid fuchsin dye from aqueous solutions using zeolite natural material after its modification with laccase from Russulaceae (Lactarius volemus). Batch adsorption experiments were performed as a function of pH, contact time, temperature, and adsorbent dosage. The optimum results were obtained at pH 5, contact time of 60 min, temperature of 60 degrees C, and an adsorbent dosage of 1.5 mg/mL. The isotherm studies show that the adsorption experimental data are fitted well by Langmuir isotherm model. The adsorption capacity found is 31 mg/g. The kinetics of AFD adsorption on LMZ is best described with the pseudo-first-order kinetics model. Thermodynamic parameters including Gibbs free energy, enthalpy, and entropy changes indicate that the adsorption of Acid Fuchsin dye onto laccase-modified zeolite is feasible, spontaneous, and exothermic. The results show that laccase-modified zeolite can be Used as an alternative low-cost adsorbent for dye removal from aqueous solutions.