Zinc adsorption from aqueous solution using lemon, orange, watermelon, melon, pineapple, and banana rinds


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Yılmaz Ö., Tuğrul N.

WATER PRACTICE AND TECHNOLOGY, vol.17, pp.318-328, 2022 (Peer-Reviewed Journal) identifier identifier

  • Publication Type: Article / Article
  • Volume: 17
  • Publication Date: 2022
  • Doi Number: 10.2166/wpt.2021.102
  • Journal Name: WATER PRACTICE AND TECHNOLOGY
  • Journal Indexes: Emerging Sources Citation Index, Scopus, Agricultural & Environmental Science Database, Aqualine, Aquatic Science & Fisheries Abstracts (ASFA), Compendex
  • Page Numbers: pp.318-328
  • Keywords: adsorption, biosorbent, fruit rind, microwave, zinc, HEAVY-METALS, CONTAMINATED WATER, ACTIVATED CARBON, PEEL WASTE, REMOVAL, SHELL, IONS, ADSORBENT, BIOCHAR, NANOPARTICLES

Abstract

In this study, six fruit rind, chemical activated using ZnCl2 and carbonized by microwave, were used as biosorbent to remove zinc from aqueous solution. Fruit kind, microwave treatment time and adsorption contact time effects on zinc biosorption yield were examined. The characterization of raw materials and synthesized biosorbents were realized by Fourier-transform infrared spectroscopy (FT-IR). The dried fruits rinds were activated for 2 or 4 h using ZnCl2 and carbonized for 1, 2, 3 or 4 min at 800 W microwave power. Zinc biosorption yield was determined using ultraviolet-visible spectroscopy (UV-Vis). Maximum zinc biosorption capability was determined 39.18 mg/g for lemon, 35.78 mg/g for orange, 14.76 mg/g for watermelon, 13.06 mg/g for melon, 12.2 mg/g for pineapple and 9 mg/g for banana rinds. The results indicate that the six fruits rinds can be used for zinc adsorption from aqueous solution as cost-effective and environmentally friendly biosorbent with high adsorption efficiency.