Adsorption and transformation of tetracyclines on alpha alumina particles with surface modification by anionic surfactant.

Autor: Yen Doan TH; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Viet Nam., Hoang TH; University of Education, Vietnam National University, Hanoi, 144 Xuan Thuy, Cau Giay, Hanoi, 100000, Viet Nam. Electronic address: hoangthuha0105@vnu.edu.vn., Le VA; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Viet Nam; Center for Research and Technology Transfer, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam., Vu DN; Center for Research and Technology Transfer, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam., Vu TN; Institute of Materials Science, Vietnam Academy of Science and Technology, 18 Hoang Quoc Viet, Cau Giay, Hanoi, Viet Nam., Srivastav AL; Chitkara University School of Engineering and Technology, Chitkara University, Himachal Pradesh, India., Pham TD; Faculty of Chemistry, University of Science, Vietnam National University, Hanoi, 19 Le Thanh Tong, Hoan Kiem, Hanoi, 100000, Viet Nam. Electronic address: tienduchphn@gmail.com.
Jazyk: angličtina
Zdroj: Environmental research [Environ Res] 2023 Jan 01; Vol. 216 (Pt 2), pp. 114618. Date of Electronic Publication: 2022 Oct 22.
DOI: 10.1016/j.envres.2022.114618
Abstrakt: The adsorption and transformation of tetracyclines (TCs) antibiotics, including oxytetracycline (OTC), chlortetracycline (CTC), and tetracycline (TC), on the sodium dodecyl sulfate (SDS) surfactant-modified α-Al 2 O 3 particles were comprehensively investigated in this study. The TCs adsorption was significantly enhanced by using the modified adsorbents compared with the use of the unmodified adsorbents. The experimental conditions were systematically optimized and found to be pH 4, NaCl 1 mM, the contact time of 180 min, and the adsorbent dosage of 25 mg. mL -1 . The high maximum adsorption capacities were approximately 320, 85, and 91 mg. g -1 for TC, OTC, and CTC, respectively. Meanwhile, the great removal efficiencies of the three antibiotics TC, OTC, and CTC were correspondingly 91.85, 88.4, and 98.3%. The TCs adsorption isotherm and kinetics on the SDS-modified α-Al 2 O 3 particles mainly governed by the electrostatic and hydrophobic interactions were clarified by a suitable two-step model, the Fourier transform infrared spectroscopy (FT-IR) and zeta potential measurements. Meanwhile, the TCs structural transformation determined by the liquid chromatography with tandem mass spectrometry (LC-MS/MS) measurement was promoted through the adsorption on the α-Al 2 O 3 surface. The TCs transformation rates strongly affected by the TCs adsorption were in the order of CTC > TC > OTC. The found results are promised that the SDS-modified α-Al 2 O 3 particles might behave as high-performance adsorbents to remove the TCs from aqueous solutions.
Competing Interests: Declaration of competing interest The authors declare the following financial interests/personal relationships which may be considered as potential competing interests: Tien Duc Pham reports equipment, drugs, or supplies was provided by Vietnam National University Hanoi. Tien Duc Pham reports a relationship with Vietnam National University Hanoi that includes: employment. None has patent None pending to None.
(Copyright © 2022 Elsevier Inc. All rights reserved.)
Databáze: MEDLINE
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