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Efficient synthesis of iron oxide-biochar nanocomposites from iron-rich waste for enhanced tetracycline degradation via peroxymonosulfate activation.
- Source :
-
Journal of Cleaner Production . Aug2024, Vol. 467, pN.PAG-N.PAG. 1p. - Publication Year :
- 2024
-
Abstract
- Every year, billions of tons of iron-rich waste are generated globally, presenting a valuable resource for synthesizing iron-based catalysts. In this study, we synthesized iron oxide-biochar (Iron Oxide@Biochar) nanocomposites by ball milling a combination of tea leaves and iron-rich waste. These nanocomposites were found to be highly efficient activators of peroxymonosulfate (PMS) for degrading tetracycline (TC). Particularly, biochar-encapsulated disposable instant hot packs (DHP/BC) achieved a TC removal efficiency of 94.7% under optimal conditions, exhibiting excellent stability and strong anti-interference capabilities. Our analysis revealed that TC degradation predominantly occurred via a non-radical pathway involving singlet oxygen (1O 2) and electron transfer, with free radicals (·OH and SO 4 ·-) playing a secondary role. This research not only offers an economical and efficient solution for recycling solid waste and reusing natural biochar but also introduces a sustainable and environmentally friendly method for preparing catalysts for pollutant degradation, thus achieving the dual goals of "resource recycling" and "treating waste with waste." [Display omitted] [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 09596526
- Volume :
- 467
- Database :
- Academic Search Index
- Journal :
- Journal of Cleaner Production
- Publication Type :
- Academic Journal
- Accession number :
- 178234416
- Full Text :
- https://doi.org/10.1016/j.jclepro.2024.142976