Iodine adsorption and electrochemical double-layer capacitor characteristics of activated carbon prepared from low-cost biomass

Saka C., Yardım Y., Sahin Ö., Baytar O.

INTERNATIONAL JOURNAL OF PHYTOREMEDIATION, vol.25, no.1, pp.74-81, 2023 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 25 Issue: 1
  • Publication Date: 2023
  • Doi Number: 10.1080/15226514.2022.2057420
  • Journal Name: INTERNATIONAL JOURNAL OF PHYTOREMEDIATION
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus, Academic Search Premier, Aerospace Database, Aquatic Science & Fisheries Abstracts (ASFA), BIOSIS, Biotechnology Research Abstracts, CAB Abstracts, Communication Abstracts, EMBASE, INSPEC, MEDLINE, Metadex, Pollution Abstracts, Veterinary Science Database, Civil Engineering Abstracts
  • Page Numbers: pp.74-81
  • Keywords: Activated carbon, chemical activation, chestnut shell, electric double-layer capacitor, iodine adsorption, MOLECULAR-SIEVES, CHESTNUT SHELL, POROUS CARBONS, PERFORMANCE, ZNCL2, NANOCOMPOSITES, MICROWAVE, REMOVAL, CAPTURE
  • Istanbul Technical University Affiliated: No

Abstract

The efficient adsorption application and electric double-layer capacitor material with low-cost biomass-based activated carbon materials have been quite common recently. In this study, chestnut shell-based activated carbons were produced by chemical activation. ZnCl2, H3PO4, and KOH agents were used for chemical activation. The obtained activated carbon, iodine adsorption from aqueous solutions, and its use as an electro capacitor were investigated. The scanning electron microscope, nitrogen adsorption/desorption, and Fourier transform infrared spectroscopy were used for characterization. The values of surface area and iodine adsorption capacity of the chestnut shell-based activated carbon are 1544 m(2) g(-1) and 1525 mg g(-1). As a result, a specific capacitance of 97 Fg(-1) with chestnut shell-based activated carbon was obtained in a 1 M KCl electrolyte for the electrochemical double-layer capacitor. This study shows that activated carbon based on the chestnut shell can be used both as an electrochemical energy storage material and as an adsorbent in iodine adsorption.