Alginate-modified surfactants functionalized metal-organic framework-based fluorescent film sensors for detection and adsorption of volatile aldehydes in water.

Autor: Bishay ES; Department of Technical Affairs of Petroleum Materials, Wataniya Petroleum Company, Cairo 11765, Egypt., Elged AH; Department of Petrochemicals, Egyptian Petroleum Research Institute, Cairo 11727, Egypt., Farag AA; Petroleum Applications Department, Egyptian Petroleum Research Institute, Cairo 11727, Egypt., Zahran MK; Chemistry Department, Faculty of Science, Helwan University, Cairo 11795, Egypt. Electronic address: zahranmk@science.helwan.edu.eg., Tawfik SM; Department of Petrochemicals, Egyptian Petroleum Research Institute, Cairo 11727, Egypt. Electronic address: salahtwfk85@yahoo.com.
Jazyk: angličtina
Zdroj: International journal of biological macromolecules [Int J Biol Macromol] 2024 Feb; Vol. 259 (Pt 1), pp. 129080. Date of Electronic Publication: 2023 Dec 29.
DOI: 10.1016/j.ijbiomac.2023.129080
Abstrakt: Volatile aldehydes have an adverse impact on both human health and the environment, therefore, a fast, straightforward, highly accurate detection technique for the simultaneous detection and removal of several aldehydes is eagerly anticipated. Herein, novel APGF@ZIF-8 and APOF@ZIF-8 sensing materials were developed by coating fluorescent alginate-modified surfactants (APGF and APOF) into the ZIF-8 MOFs to produce quite porous fluorescent sensors (S BET up to 1519 m 2 /g). The detection capacity of the prepared sensors for benzaldehyde, glyoxal, formaldehyde, and acetaldehyde has been examined. The detection mechanism was suggested as hydrogen bonding formation between the sensors and volatile aldehydes as confirmed by Gaussian calculations. All the fluorescence spectra of aldehydes display remarkable linear detection relationships in the range of 0.05-200 μM with the limits of detection (LOD) values in the range of 0.001-0.18 μM (0.106-10.44 ppb). These sensors were utilized successfully to detect multiple volatile aldehydes in river water samples with satisfactory recoveries of 96-107 %. Interestingly, fluorescent APGF@ZIF-8/CS and APOF@ZIF-8/CS films as portable disposable removal techniques for benzaldehyde, glyoxal, formaldehyde, and acetaldehyde from water were fabricated. APOF@ZIF-8/CS exhibited an excellent formaldehyde adsorption capacity of 58.30 mg/g and an adsorption removal efficiency of 93.5 %. The adsorption process of biosorbent on various aldehydes was fitted by Freundlich adsorption isotherm. The adsorption kinetics followed Pseudo-second-order kinetic model.
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 © 2023 Elsevier B.V. All rights reserved.)
Databáze: MEDLINE
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