Synthesis of hybrid magnesium hydroxide/magnesium oxide nanorods [Mg(OH)2/MgO] for prompt and efficient adsorption of ciprofloxacin from aqueous solutions

Omar Falyouna, Khaoula Bensaida, Ibrahim Maamoun, U. P.M. Ashik, Atsushi Tahara, Kazuya Tanaka, Noboru Aoyagi, Yuji Sugihara, Osama Eljamal

研究成果: ジャーナルへの寄稿学術誌査読

3 被引用数 (Scopus)

抄録

The antibiotic ciprofloxacin (CIP) is recognized as a contaminant of emerging concern because its persistent occurrence in water accelerates the growth of deadly antimicrobial resistance genes (AMRs). For the first time, the conventional precipitation technique was thermally modified to produce hybrid magnesium hydroxide/magnesium oxide nanorods [Mg(OH)2/MgO] for efficient and rapid adsorption of CIP from water. The successful synthesis of Mg(OH)2/MgO was confirmed by the outcomes of TEM, EDS, XRD, and FTIR analysis. Mg(OH)2/MgO exhibited an extraordinary capability to adsorb CIP from water regardless of CIP initial concentration where more than 97% of 200 mg L−1 of CIP was promptly eliminated within 30 min by 0.1 g L−1 of Mg(OH)2/MgO under neutral pH and room temperature. These results clearly state that Mg(OH)2/MgO is at least 2-fold efficient and 20-fold faster in removing CIP than the reported nanomaterials with exceptional adsorption capacity higher than 1789 mg g−1. FTIR analysis for the spent Mg(OH)2/MgO revealed that bridging complexation with carboxylic group and electrostatic attraction with the positive amine group are the responsible mechanisms for CIP adsorption by Mg(OH)2/MgO. Moreover, simulated CIP-contaminated river water was efficiently treated by Mg(OH)2/MgO which proves the promising performance of Mg(OH)2/MgO in field scale applications.

本文言語英語
論文番号130949
ジャーナルJournal of Cleaner Production
342
DOI
出版ステータス出版済み - 3月 15 2022
外部発表はい

!!!All Science Journal Classification (ASJC) codes

  • 再生可能エネルギー、持続可能性、環境
  • 環境科学(全般)
  • 戦略と経営
  • 産業および生産工学

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