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Turkish Journal of Zoology

Author ORCID Identifier

ALBULENE EMINI: 0000-0002-7611-4368

OSMAN SEYYAR: 0000-0002-0920-7943

YAVUZ SÜRME: 0000-0003-4368-6658

DOI

10.55730/1300-0179.3183

Abstract

This study evaluates the biosorption ability of chitin derived from a specific spider species namely Drassodes lapidosus (Walckenaer, 1802) belongs to Gnaphosidae family. The obtained chitin was characterized by fourier transform infrared spectroscopy (FT-IR), thermogravimetric analysis (TGA), X-ray diffraction (XRD), and scanning electron microscopy (SEM) analysis. In the alpha form of the obtained chitin, its thermal stability was observed to be 356.9 ℃ and, the Crl value was 69.16%. In addition, this chitin was used as a bioadsorbent to remove heavy metal ions such as Ni (II), Cu (II) and Pb (II) from the aqueous medium by solid phase extraction (SPE) method using mini adsorption columns. The SPE method was optimized by changing one variable at a time. Main parameters affecting the SPE technique such as solution pH, sample volume, and interfering ions were optimized in model metal solutions containing Pb (II), Cu (II) and Ni (II) at certain concentrations. Determination of metal concentrations were acquired by flame atomic absorption spectrophotometer (FAAS). The results revealed that, Pb (II), Cu (II) and Ni (II) ions could be quantitatively removed from their environment at pH=5, by their adsorption on the surface of the chitin. Even in the presence of possible interfering anions and cations at high concentrations. Pb (II), Cu (II) and Ni (II) could be separated quantitatively from aqueous solution by using Drassodes lapidosus chitin as adsorbent.

Keywords

chitin, Drassodes lapidosus, heavy metal removal, solid phase extraction

First Page

286

Last Page

295

Creative Commons License

Creative Commons Attribution 4.0 International License
This work is licensed under a Creative Commons Attribution 4.0 International License.

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