Bioremoval of Safranin O dye by the identified lichen species called Evernia prunastri biomass; biosorption optimization, isotherms, kinetics, and thermodynamics

Şenol Z. M., Gul U. D., Şimşek S.

BIOMASS CONVERSION AND BIOREFINERY, cilt.12, sa.9, ss.4127-4137, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 12 Sayı: 9
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1007/s13399-020-01216-9
  • Dergi Adı: BIOMASS CONVERSION AND BIOREFINERY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Compendex, INSPEC
  • Sayfa Sayıları: ss.4127-4137
  • Anahtar Kelimeler: Lichen, Evernia prunastri, Biosorption, Cationic dye, Safranin O, AQUEOUS-SOLUTIONS, WASTE-WATER, ADSORPTION, REMOVAL, SEEDS, EQUILIBRIUM, SORPTION, PB(II), BATCH, RAW
  • Sivas Cumhuriyet Üniversitesi Adresli: Evet

Özet

Evernia prunastri (lichen), a novel, eco-friendly, cost-effective, wide availability, safe, renewable and easy collection biosorbent, has been utilized for the removal of Safranin O (SO) dye from an aqueous solution. The biosorption behavior of SO onto the lichen biomass was investigated concerning parameters such as initial SO concentration (10-2000 mg L-1), solution pH (2.0-12.0), lichen biomass dosage (1-20 g L-1), contact time (2-1440 min), temperature (5 degrees C, 25 degrees C, and 40 degrees C), and recovery were investigated. The zeta potential analyses showed that electrostatic attraction existed during the biosorption process between the SO and lichen biomass. The maximum SO biosorption capacity of the lichen biomass was 0.257 mol kg(-1) at pH 6.0 and 25 degrees C. The biosorption energy for SO onto the lichen biomass was found to be E(DR:)8.9 kJ mol(-1) reveals the biosorption proceeds chemically. The biosorption process follows the pseudo-second order and intra particle diffusion rate kinetics. Thermodynamic studies showed that SO biosorption, by this the lichen biomass is possible, spontaneous, and endothermic.