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Tytuł:
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PVA-assisted CNCs/SiO 2 composite aerogel for efficient sorption of ciprofloxacin.
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Autorzy:
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Ruan C; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
Chen G; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
Ma Y; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
Du C; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
He C; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
Liu X; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
Jin X; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
Chen Q; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China.
He S; School of Safety Science and Emergency Management, Wuhan University of Technology, Luoshi Road 122, Wuhan 430070, PR China. Electronic address: .
Huang Y; College of Emergency Management, Nanjing Tech University, Nanjing 211816, PR China. Electronic address: .
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Źródło:
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Journal of colloid and interface science [J Colloid Interface Sci] 2023 Jan 15; Vol. 630 (Pt A), pp. 544-555. Date of Electronic Publication: 2022 Oct 10.
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Typ publikacji:
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Journal Article
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Język:
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English
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Imprint Name(s):
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Publication: Orlando, FL : Academic Press
Original Publication: New York.
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MeSH Terms:
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Ciprofloxacin*/chemistry
Polyvinyl Alcohol*/chemistry
Silicon Dioxide/chemistry ; Adsorption ; Kinetics ; Hydrogen-Ion Concentration
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Contributed Indexing:
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Keywords: Ciprofloxacin; PVA-assisted CNCs/SiO(2) composite aerogel; Sorption
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Substance Nomenclature:
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5E8K9I0O4U (Ciprofloxacin)
9002-89-5 (Polyvinyl Alcohol)
7631-86-9 (Silicon Dioxide)
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Entry Date(s):
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Date Created: 20221021 Date Completed: 20221115 Latest Revision: 20221115
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Update Code:
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20240105
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DOI:
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10.1016/j.jcis.2022.10.020
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PMID:
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36270175
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Efforts to develop a green, inexpensive and effective adsorbent are crucial for eliminating antibiotics in polluted water. The sorption capacity of the as-prepared polyvinyl alcohol (PVA)-assisted cellulose nanocrystals/SiO 2 (CNCs/SiO 2 ) composite aerogel to ciprofloxacin (CIP) rises with the increase of temperature and initial concentration. Reverse trend of sorption capacity can be found when increasing the adsorbent dosage of adsorbent. The optimal pH value for the sorption is proved to be 4. It's found in the uniaxial compression test that the maximum load that PVA-assisted aerogels can withstand is nearly 100 times than that of non-PVA aerogels. Sorption results confirm that the Pseudo-second order (R 2 = 0.9885) and Langmuir models (R 2 = 0.9959) fit well to sorption kinetics and equilibrium data, respectively. The rate constant differs from the initial concentration of CIP according to the Pseudo-second order model. The composite aerogel sorption capacity of Langmuir (q max ) for CIP was 163.34 mg·g -1 . The thermodynamic studies showed that the sorption process is endothermic with the value of enthalpy change of 41.032 kJ/mol. Hydrogen bonding, π-π interaction, hydrophobic and electrostatic interactions are the dominant mechanisms of CIP sorption by the PVA-assisted CNCs/SiO 2 composite aerogel.
Competing Interests: Declaration of Competing Interest The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
(Copyright © 2022 Elsevier Inc. All rights reserved.)
