Comparative study of natural and modified Abies bornmulleriana cones in the removal of copper (II) ions

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Oğuz E.

INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY, cilt.19, sa.6, ss.5343-5358, 2022 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 19 Sayı: 6
  • Basım Tarihi: 2022
  • Doi Numarası: 10.1007/s13762-021-03496-8
  • Dergi Adı: INTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGY
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Biotechnology Research Abstracts, CAB Abstracts, Compendex, Environment Index, Geobase, INSPEC, Pollution Abstracts, Veterinary Science Database
  • Sayfa Sayıları: ss.5343-5358
  • Anahtar Kelimeler: Abies bornmulleriana cone, biosorption, Modified sorbent, Cu (II), Kinetics, FIXED-BED COLUMN, WASTE-WATER, AQUEOUS-SOLUTIONS, SYNTHETIC SOLUTIONS, ACTIVATED CARBON, CADMIUM IONS, HEAVY-METALS, BIOSORPTION, ADSORPTION, EQUILIBRIUM
  • Atatürk Üniversitesi Adresli: Evet

Özet

Abies bornmulleriana cones and their modified forms were used to uptake the Cu (II) ions and compare biosorption efficiency and biosorbent capacity. The effect of various experimental conditions on the uptake of the Cu (II) ions was researched. Additionally, Cu (II) ion removal efficiency and capacity were investigated in the presence of Pb (II) ions. Besides, the Cu (II) ions' removal mechanism was illustrated in terms of FTIR results. Electrophoretic mobilities of the normal and modified cones were determined to get information about the biosorption. The Brunauer, Emmett, and Teller surface area and pore volume per gram of cones before and after biosorption were identified as (5.05 m(2) and 0.0018 cm(3)) and (0.97 m(2) and 0.00032 cm(3)), respectively. The average pore width of the biosorbent before and after the biosorption was calculated as 9.34 and 13.04 A, respectively. The pseudo-second-order kinetic gave the best fit to the biosorption data (R-2 0.99, 0.99). The biosorption data for the normal and modified biosorbent fitted well to Dubinin-Radushkevitch (D-R) isotherm due to the high R-2 values (0.99, 0.98), and the maximum biosorption capacities were determined as 16.58 and 25.35 mg g(-1), respectively. Delta H degrees, Delta S degrees, and Delta G degrees parameters were estimated from the linear plot of lnKd vs. (1/T). The normal and modified biosorbent regeneration with 0.5 N HNO3 showed that the biosorption and desorption processes were reversible.