Biosorption performance of thiosalicylic acid modifiedisatis tinctoriafor Pb(II) and Cd(II) ions: batch and column studies

Alp Arici T., Ozcan A. S., ÖZCAN A.

SEPARATION SCIENCE AND TECHNOLOGY, vol.56, no.8, pp.1312-1327, 2021 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 56 Issue: 8
  • Publication Date: 2021
  • Doi Number: 10.1080/01496395.2020.1780445
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Analytical Abstracts, Applied Science & Technology Source, Biotechnology Research Abstracts, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, INSPEC, Metadex, Pollution Abstracts, DIALNET, Civil Engineering Abstracts
  • Page Numbers: pp.1312-1327
  • Keywords: Isatis tinctoria, thiosalicylic acid, biosorption, heavy metals, modification, kinetics, HEAVY-METAL IONS, AQUEOUS-SOLUTION, ACTIVATED CARBON, LEAD(II) IONS, ADSORPTION, REMOVAL, KINETICS, CADMIUM, EQUILIBRIUM, WATER
  • Anadolu University Affiliated: No


The biosorption of Pb(II) and Cd(II) ions onto thiosalicylic acid modifiedIsatis tinctoria(TS-I) was investigated. The characterization ofI. tinctoriaand TS-Iwere determined by SEM, FT-IR and TGA. The biosorption equilibrium and kinetic data well matched with the Langmuir isotherm and pseudo-second-order kinetic models, respectively. The biosorption of metal ions from the synthetic wastewaters was also investigated in the systems. TS-Ihas a very high biosorption capacity for metal ions due to the chelating effects of thiosalicylic acid in metal complexes and, it is an effective and eco-friendly biosorbent for the biosorption of metal ions from aqueous solutions.