Magnetic functional heterojunction reactors with 3D specific recognition for selective photocatalysis and synergistic photodegradation in binary antibiotic solutions
We report on the development of the emerging magnetic functional heterojunction reactors with three-dimensional (3D) specific recognition. Upon synthesis via surface imprinting and visible light-induced polymerization, the developed magnetic functional heterojunction reactors not only possess the em...
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Published in | Journal of materials chemistry. A, Materials for energy and sustainability Vol. 7; no. 23; pp. 13986 - 14 |
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Main Authors | , , , , , , , , , |
Format | Journal Article |
Language | English |
Published |
Cambridge
Royal Society of Chemistry
2019
|
Subjects | |
Online Access | Get full text |
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Summary: | We report on the development of the emerging magnetic functional heterojunction reactors with three-dimensional (3D) specific recognition. Upon synthesis
via
surface imprinting and visible light-induced polymerization, the developed magnetic functional heterojunction reactors not only possess the emblematic conductive polymer POPD, but they are also equipped with the imprinted cavities in the corresponding 3D specific recognition outer layer. Our experimental data show that POPD forms a heterojunction with TiO
2
and remarkably enhances the photocatalytic activity. Owing to the presence of imprinted cavities, the magnetic functional heterojunction reactors exhibit excellent 3D specific recognition and selective degradation of danofloxacin mesylate in a binary antibiotic solution. Importantly, through in-depth understanding of the mechanism and systematic experiments, the electron transfer mode, 3D specific recognition mode, selective photodegradation mode and photodegradation pathways are methodically discussed and thoroughly illustrated. The present study demonstrates that the 3D specific recognition can be utilized to selectively degrade a specific organic pollutant in a variety of practical environmental protection applications.
Magnetic functional heterojunction reactors, containing a 3D specific recognition layer and TiO
2
-POPD heterojunction, improve the selectivity and photocatalytic activity. |
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Bibliography: | 10.1039/c9ta01863h ln Electronic supplementary information (ESI) available: Synthesis of other samples, XPS spectra, N of degraded the binary antibiotic solutions with magnetic functional heterojunction reactor. See DOI ) versus hν and different wavelengths on photocatalytic activity, photodegradation rates and selectivity of different samples, and m n versus O / 2 1.93), TEM images, influence of different molar mass of OPD, different visible light induced polymerization times, Fe 3 4 hν Ahν adsorption-desorption data, EDS spectra, exposed surface SEM, AFM images, element mapping images, the plots of z 2/ 2.93), ln |
ISSN: | 2050-7488 2050-7496 |
DOI: | 10.1039/c9ta01863h |