Journal
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
Volume 8, Issue 5, Pages -Publisher
ELSEVIER SCI LTD
DOI: 10.1016/j.jece.2020.104139
Keywords
Fe-Cu bimetallic; Nanoparticles; H2O2 activation; Methylene blue (MB)
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Funding
- Ministry of Science and Technology (MOST), Taiwan [1062221-E-002-002-MY3, 108-2113-M-110-004]
- US NSF IOA [1632899]
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Fe-Cu bimetallic oxide, a Fenton-like catalyst, was synthesized by a facile co-precipitation method. The physicochemical characteristics of as-synthesized Fe-Cu bimetallic composites with different Cu mass loadings were characterized. The Fe-Cu-080 composite, having suitable amount of Cu, could effectively control the size of bimetallic particles, with uniform distribution in nano range, exhibited a higher activity and stability in methylene blue (MB) mineralization. Fe-Cu-080/H2O2 system could work in a wide range pH with high efficiency in MB removal and low metal leaching concentration. Electron paramagnetic resonance (EPR) and fluorescence (FL) results proved that the OH' radicals generated in Fe-Cu composite/H2O2 system were involved in the degradation of methylene blue (MB). The Fe-Cu-080 catalyst could be easily separation from the aqueous solution by simple external magnetic field. Fe-Cu-080 was not cytotoxic and could greatly reduce the copper toxicity. The combination of Cu-Fe in bimetallic structure was proved to be an attractive alternative method to improve the efficiency of heterogeneous Fenton-like system exemplified by the removal of organic pollutants from wastewater.
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