TY - JOUR
T1 - Synthesis of hybrid magnesium hydroxide/magnesium oxide nanorods [Mg(OH)2/MgO] for prompt and efficient adsorption of ciprofloxacin from aqueous solutions
AU - Falyouna, Omar
AU - Bensaida, Khaoula
AU - Maamoun, Ibrahim
AU - Ashik, U. P.M.
AU - Tahara, Atsushi
AU - Tanaka, Kazuya
AU - Aoyagi, Noboru
AU - Sugihara, Yuji
AU - Eljamal, Osama
N1 - Funding Information:
We gratefully acknowledge Tomitsugu Taguchi, Senior Principal Researcher, National Institutes for Quantum and Radiological Science and Technology, Tokai-mura, Ibaraki 319–1106, Japan, for the great support in conducting high resolution transmission electron microscopic (HRTEM) characterization at Japan Atomic Energy Agency (JAEA).
Publisher Copyright:
© 2022 Elsevier Ltd
PY - 2022/3/15
Y1 - 2022/3/15
N2 - 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.
AB - 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.
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U2 - 10.1016/j.jclepro.2022.130949
DO - 10.1016/j.jclepro.2022.130949
M3 - Article
AN - SCOPUS:85124620445
VL - 342
JO - Journal of Cleaner Production
JF - Journal of Cleaner Production
SN - 0959-6526
M1 - 130949
ER -
