Terrestrial solar radiation driven photodecomposition of ciprofloxacin in clinical wastewater applying mesostructured iron(III) oxide

Titelangaben

Wagner, Daniel R. ; Ament, Kevin ; Mayr, Lina ; Martin, Thomas ; Blößer, André ; Schmalz, Holger ; Marschall, Roland ; Wagner, Friedrich E. ; Breu, Josef:
Terrestrial solar radiation driven photodecomposition of ciprofloxacin in clinical wastewater applying mesostructured iron(III) oxide.
In: Environmental Science and Pollution Research. Bd. 28 (2020) . - S. 6222-6231.
ISSN 1614-7499
DOI: https://doi.org/10.1007/s11356-020-10899-6

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Abstract

Cationic cylindrical polymer brushes based on polybutadiene-block-poly(2-vinylpyridine) were applied as structure-directing agent for mesostructuring Fe2O3 nanoparticles into nanotubes. After temperature-controlled template removal, the obtained non-woven catalysts were tested for the photodegradation of ciprofloxacin under terrestrial solar radiation. At a slightly basic pH value, as typically encountered in clinical wastewaters, the mesostructured Fe2O3 shows a 4.5 times faster degradation of ciprofloxacin than commercial Aeroxide® TiO2 P25. Even wide-bandgap ZnO, mesostructured in the same way, is 1.6 times slower. Moreover, the non-woven-like structure of the catalyst allows for easy recovery of the catalyst and operation in a continuous flow reactor.