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Synthesis of invasive plant biochar catalyst with carbon nitride structure for peroxymonosulfate activation toward efficient ciprofloxacin degradation
- Source :
- Biochar, Vol 6, Iss 1, Pp 1-17 (2024)
- Publication Year :
- 2024
- Publisher :
- Springer, 2024.
-
Abstract
- Abstract In this work, an invasive plant (Aster subulatus Michx) mesopore laminar biochar loaded with transition metal Co (CoS@MLBC) was synthesized by a one-step hydrothermal carbonization way for activating peroxymonosulfate (PMS) to remove antibiotics in water. We characterized the structure and morphology of CoS@MLBC and tested its performance. The results showed that the carbon nitride structure was formed on CoS@MLBC, which improved its adsorption capacity for antibiotics and PMS. In addition, Co-doping significantly enhanced the PMS activity and efficiently degraded ciprofloxacin (CIP) over a wide pH range. It was identified that radical and non-radical synergistic action had a critical effect on the CIP degradation process. Furthermore, CoS@MLBC could completely remove CIP within 10 min and had a high removal efficiency (98%) after four cycles. Three possible pathways of the CIP degradation process with 12 intermediates were proposed and their ecotoxicity was analyzed. This work provides a new perspective for preparing biochar from invasive plants for the degradation of antibiotics in water, realizing the concept of “treating the wastes with wastes”. Graphical Abstract
Details
- Language :
- English
- ISSN :
- 25247867
- Volume :
- 6
- Issue :
- 1
- Database :
- Directory of Open Access Journals
- Journal :
- Biochar
- Publication Type :
- Academic Journal
- Accession number :
- edsdoj.5534edbaf54048cabec06ace4d2d0fe8
- Document Type :
- article
- Full Text :
- https://doi.org/10.1007/s42773-024-00325-2