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Activation of persulfate with magnetic Fe3O4-municipal solid waste incineration bottom ash-derived zeolite core–shell materials for tetracycline hydrochloride degradation.
- Source :
- Environmental Technology; Aug2024, Vol. 45 Issue 19, p3840-3852, 13p
- Publication Year :
- 2024
-
Abstract
- A novel and environmentally friendly magnetic iron zeolite (MIZ) core–shell were successfully fabricated using municipal solid waste incineration bottom ash-derived zeolite (MWZ) coated with Fe<subscript>3</subscript>O<subscript>4</subscript> and innovatively investigated as a heterogeneous persulfate (PS) catalyst. The morphology and structure composition of as-prepared catalysts were characterised, and it was proved that the core–shell structure of MIZ was successfully synthesised by coating Fe<subscript>3</subscript>O<subscript>4</subscript> uniformly on the MWZ surface. The tetracycline hydrochloride (TCH) degradation experiment indicate that the optimum equimolar amount of iron precursors was 3 mmol (MIZ-3). Compared with other systems, MIZ-3 possessed a superior catalytic performance, and the degradation efficiency of TCH (50 mg·L<superscript>−1</superscript>) in the MIZ-3/PS system reached 87.3%. The effects of reaction parameters on the catalytic activity of MIZ-3, including pH, initial concentration of TCH, temperature, the dosage of catalyst, and Na<subscript>2</subscript>S<subscript>2</subscript>O<subscript>8</subscript>, were assessed. The catalyst had high stability according to three recycling experiments and the leaching test of iron ions. Furthermore, the working mechanism of the MIZ-3/PS system to TCH was discussed. The electron spin resonance (ESR) results demonstrated that the reactive radicals generated in the MIZ-3/PS system were sulphate radical (${\rm S}{\rm O}_4^- \bullet$ S O 4 − ∙) and hydroxyl radical (•OH). This work provided a novel strategy for TCH degradation under PS with a broad perspective on the fabrication of non-toxic and low-cost catalysts in practical wastewater treatment. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09593330
- Volume :
- 45
- Issue :
- 19
- Database :
- Complementary Index
- Journal :
- Environmental Technology
- Publication Type :
- Academic Journal
- Accession number :
- 178458942
- Full Text :
- https://doi.org/10.1080/09593330.2023.2234673