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Simple ultrasonic integration of shapeable, rebuildable, and multifunctional MIL-53(Fe)@cellulose composite for remediation of aqueous contaminants.
- Source :
-
International Journal of Biological Macromolecules . Sep2023, Vol. 249, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- Metal-organic frames (MOFs) have been recognized as one of the best candidates in the remediation of aqueous contaminants, while the fragile powder shape restricts the practical implementation. In this work, a shapeable, rebuildable, and multifunctional MOF composite (MIL-53@CF) was prepared from MIL-53 (Fe) and cellulose fiber (CF) using a simple ultrasonic method for adsorption and photocatalytic degradation of organic pollutants in wastewater. The results showed MIL-53(Fe) crystals were uniformly growth on CF surfaces and bonded with surface nanofibrils of CF through physical crosslinking and hydrogen bonding. Because of the high bonding strength, the MIL-53@CF composite exhibited an excellent compressive strength (3.53 MPa). More importantly, the MIL-53@CF composite was rebuildable through mechanical destruction followed by re-ultrasonication, suggesting the excellent reusability of MIL-53@CF for water remediation. The MIL-53@CF composite also had high adsorption capacities for methyl orange (884.6 mg·g−1), methylene blue (198.3 mg·g−1), and tetracycline (106.4 mg·g−1). MIL-53@CF composite could degrade TC through photocatalysis. The photocatalytic degradation mechanism was attributed to the Fe(II)/Fe(III) transform cycle reaction of MIL-53 crystal located on MIL-53@CF. Furthermore, the mechanical property and remoldability of MIL-53@CF composite increased its practicability. Comprehensively, MIL-53@CF composite provided a possible strategy to practically apply MOF in the remediation of aqueous contaminants. [Display omitted] • Shapeable, rebuildable, and multifunctional MIL-53@CF composite was synthesized using a simple ultrasonication method. • The MIL-53@CF is effective for adsorption and photocatalytic degradation of organic pollutants. • The mechanical properties, remoldability and recyclability of MIL-53@CF improved the practical application. • The synthesis, adsorption and catalytic mechanisms of MIL-53@CF composite were studied. [ABSTRACT FROM AUTHOR]
- Subjects :
- *POLLUTANTS
*WASTE recycling
*ULTRASONICS
*PHOTODEGRADATION
*CELLULOSE fibers
Subjects
Details
- Language :
- English
- ISSN :
- 01418130
- Volume :
- 249
- Database :
- Academic Search Index
- Journal :
- International Journal of Biological Macromolecules
- Publication Type :
- Academic Journal
- Accession number :
- 172306184
- Full Text :
- https://doi.org/10.1016/j.ijbiomac.2023.126118