3D-printed heterogeneous Cu 2 O monoliths: Reusable supports for Antibiotic Treatmentantibiotic treatment of wastewater.

Autor: Xie Y; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China., Yu Y; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; Manufacturing, CSIRO, Clayton, Victoria 3169, Australia. Electronic address: yuyang19880421@yeah.net., Xie H; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China., Huang F; School of Environmental Science and Engineering, Nanjing Tech University, Nanjing 211816, China; School of Food Science and Pharmaceutical Engineering, Nanjing Normal University, Nanjing 210023, China., Hughes TC; Manufacturing, CSIRO, Clayton, Victoria 3169, Australia. Electronic address: Timothy.Hughes@csiro.au.
Jazyk: angličtina
Zdroj: Journal of hazardous materials [J Hazard Mater] 2022 Aug 15; Vol. 436, pp. 129170. Date of Electronic Publication: 2022 May 24.
DOI: 10.1016/j.jhazmat.2022.129170
Abstrakt: In this study, surfactant stabilized dispersions of the Cu 2 O microparticles in a commercially available photocurable resin were 3D printed into both porous and non-porous monoliths, and the heterogeneous Cu 2 O catalytic monolith with improved mass transfer characteristics was applied for antibiotic wastewater treatment. The physicochemical properties of catalytic monoliths were characterized by scanning electron microscopy, X-ray diffraction, X-ray photoelectron spectroscopy and thermogravimetric. Ten intermediates were analyzed and identified by GC-MS, and the corresponding degradation pathways were proposed. Both numerical simulation and degradation experiments were used to explore the mass transfer mechanism and catalytic performance of the monoliths. The results showed that the 3D-printed monolith with a well-defined porous network exhibited a high ofloxacin degradation efficiency (100%) based on the sulfate radical-based advanced oxidation processes. In addition, the catalytic monolith showed sustained high activity over 7 reusable cycles demonstrating its feasibility in removal of antibiotics from wastewater.
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Databáze: MEDLINE
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