Biosorption Characteristics of Cu(II) and Cd(II) Ions by Modified Alginate

Arici T. A., Ozcan A. S., ÖZCAN A.

JOURNAL OF POLYMERS AND THE ENVIRONMENT, vol.28, no.12, pp.3221-3234, 2020 (SCI-Expanded) identifier identifier

  • Publication Type: Article / Article
  • Volume: 28 Issue: 12
  • Publication Date: 2020
  • Doi Number: 10.1007/s10924-020-01844-2
  • Journal Name: JOURNAL OF POLYMERS AND THE ENVIRONMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, PASCAL, Aerospace Database, Agricultural & Environmental Science Database, BIOSIS, Chemical Abstracts Core, Chimica, Communication Abstracts, Compendex, Environment Index, Geobase, Greenfile, Metadex, Pollution Abstracts, Civil Engineering Abstracts
  • Page Numbers: pp.3221-3234
  • Keywords: Alginate, Thiosalicylic acid, Biosorption, Heavy metals, Modification, HEAVY-METAL IONS, CALCIUM ALGINATE, AQUEOUS-SOLUTION, CA-ALGINATE, CHLORELLA-VULGARIS, ADSORPTION, REMOVAL, COPPER, BIOSORBENTS, SORPTION
  • Anadolu University Affiliated: No

Abstract

In this study, a novel biosorbent was prepared by the modification of sodium alginate with thiosalicylic acid in the presence of calcium ions (TS-A). TS-A was then characterized and its removal performance for Cu(II) and Cd(II) ions from the aqueous solutions was investigated. The effects of batch and column parameters on the biosorption were systematically investigated. The obtained data from the biosorption results were well fitted by the pseudo-second-order kinetic and Langmuir isotherm models. The maximum biosorption capacities of TS-A were found as 426.9 mg g(-1)for Cu(II) ions and 592.9 mg g(-1)for Cd(II) ions. In the column system, the saturation points of TS-A were obtained as 180 min and 150 min for Cu(II) and Cd(II) ions, respectively. In conclusion, TS-A has provided the removal of heavy metal ions with superior performance by a smart biosorption method, offering advantages such as rapid kinetic and high biosorption capacities.