Development and characterization of magnetic celery alginate biocomposites coated with pyrocatechol violet for the removal of Pb2+, Cu2+ and Cr3+ ions from water samples
Chemical Papers, 2026 (SCI-Expanded, Scopus)
- Yayın Türü: Makale / Tam Makale
- Basım Tarihi: 2026
- Doi Numarası: 10.1007/s11696-026-05404-1
- Dergi Adı: Chemical Papers
- Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Aerospace Database, Chemical Abstracts Core, Materials Science & Engineering Collection (ProQuest), Technology Collection (ProQuest)
- Anahtar Kelimeler: Adsorption, Celery, Heavy metal, Magnetic biocomposite, Removal, Wastewater treatment
- Sivas Cumhuriyet Üniversitesi Adresli: Evet
Özet
This study investigated the development and application of a new magnetic biocomposite for the effective removal of Pb2+, Cu2+ and Cr+3 ions. These biocomposites were prepared using encapsulated alginate beads, celery stalk powder, iron (II–III) oxide obtained via biosynthesis, and pyrocatechol violet. The characterization of the material was performed via FT-IR, SEM–EDX, XRD, and BET analyses. Adsorption experiments were conducted to optimize analytical parameters such as pH, temperature, adsorbent amount, extraction time, and matrix effects. Adsorption capacities (qm) were determined according to the Langmuir isotherm model as follows: 208.33 mg g−1 for Pb2+, 76.92 mg g−1 for Cu2+, and 24.47 mg g−1 for Cr+3. The limit of detection (LOD) and limit of quantification (LOQ) were 0.55 mg L−1 and 1.12 mg L−1 for Pb+2, 0.01 mg L−1 and 0.25 mg L−1 for Cu2+, and 0.02 mg L−1 and 1.6 mg L−1 for Cr3. respectively. The applicability of the biocomposite has been demonstrated in real samples, with removal efficiencies ranging between 73% and ˃90% for Pb2+, Cu2+, and Cr+3.Adsorption isotherms and kinetic models were applied. The results show that the celery-enhanced magnetic biocomposite is a promising adsorbent for the removal of Pb2+, Cu2+, and Cr+3 ions in wastewater treatment.