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Design and synthesis of α-Fe2O3/MIL-53(Fe) composite as a photo-Fenton catalyst for efficient degradation of tetracycline hydrochloride.
- Source :
-
Colloids & Surfaces A: Physicochemical & Engineering Aspects . Feb2023, Vol. 659, pN.PAG-N.PAG. 1p. - Publication Year :
- 2023
-
Abstract
- In this study, the α-Fe 2 O 3 /MIL-53(Fe) composite was successfully designed and developed through a solvothermal method as a photo-Fenton catalyst and for the degradation of tetracycline hydrochloride (TC-HCl). The results show that the prepared composite exhibits superb performance for the degradation of TC-HCl ascribing to the synergistic effect between MIL-53(Fe) and α-Fe 2 O 3. And the formation of heterojunction structure is beneficial to reducing the band gap, enhancing the absorption of visible light, and improving the separation and transportation of photo-induced carriers. Moreover, this heterojunction structure can be formed without annealing treatment. The effects of pH, H 2 O 2 consumption and catalyst dosage on the degradation of TC-HCl are also investigated. The optimum conditions for target pollutant degradation were investigated according to the response surface methodology (RSM) result based on a central composite design (CCD). A possible mechanism of degradation of TC-HCl is proposed according to the main active radical that existed in the reaction process. This work provides a novelty perspective and in-depth and independent insight for the photo-Fenton mechanism of heterojunction structure modified MOFs material. [Display omitted] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09277757
- Volume :
- 659
- Database :
- Academic Search Index
- Journal :
- Colloids & Surfaces A: Physicochemical & Engineering Aspects
- Publication Type :
- Academic Journal
- Accession number :
- 161058563
- Full Text :
- https://doi.org/10.1016/j.colsurfa.2022.130822