Chitosan immobilization and Fe3O4 functionalization of olive pomace: An eco-friendly and recyclable Pb2+biosorbent

Sayın F., Tunali Akar S., Akar T., Çelik S., Gedikbey T.

CARBOHYDRATE POLYMERS, cilt.269, 2021 (SCI-Expanded) identifier identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 269
  • Basım Tarihi: 2021
  • Doi Numarası: 10.1016/j.carbpol.2021.118266
  • Dergi Adı: CARBOHYDRATE POLYMERS
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, PASCAL, BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Chemical Abstracts Core, EMBASE, Food Science & Technology Abstracts, MEDLINE, Veterinary Science Database
  • Anahtar Kelimeler: Biosorption, Chitosan, Immobilization, Lead, Magnetic sorbent, Wastewater treatment, HEAVY-METAL IONS, AQUEOUS-SOLUTION, ENVIRONMENTAL CLEANUP, DYE REMOVER, WASTE-WATER, BY-PRODUCT, BIOSORPTION, SORPTION, ADSORPTION, BIOMASS
  • Eskişehir Osmangazi Üniversitesi Adresli: Evet

Özet

An effective and sustainable biosorbent (MagOPIC) was prepared from chitosan and olive pomace by the combined action of immobilization and magnetic modification to remediate Pb2+-contaminated waters. Pb2+ sorption yield at the end of the equilibrium (45 min) period was estimated to be 98.56 +/- 0.28% at pH 5.5. Agitation speed, ionic strength, and temperature did not significantly affect the Pb2+ biosorption. Biosorption kinetics are successfully fitted by the pseudo-second-order equation while the equilibrium biosorption data are properly modeled using the Freundlich and D-R isotherms. MagOPIC has also exhibited a high biosorption yield in the column tests (>= 99%) and showed remarkable stability up to twenty consecutive regeneration cycles. Furthermore, it was successfully used for the treatment of Pb2+ containing real wastewater. The findings of this work highlighted the potential use of MagOPIC as a novel, cost-effective and eco-friendly biosorbent for the Pb2+ removal from the contaminated aquatic phase.