Efficient removal of organic and bacterial pollutants by Ag-La0.8Ca0.2Fe0.94O3-δ perovskite via catalytic peroxymonosulfate activation
dc.contributor.author | Chu, Y. | |
dc.contributor.author | Tan, X. | |
dc.contributor.author | Shen, Zhangfeng | |
dc.contributor.author | Liu, Pengyun | |
dc.contributor.author | Han, Ning | |
dc.contributor.author | Kang, Jian | |
dc.contributor.author | Duan, Xiaoguang | |
dc.contributor.author | Wang, Shaobin | |
dc.contributor.author | Liu, Lihong | |
dc.contributor.author | Liu, Shaomin | |
dc.date.accessioned | 2018-06-29T12:27:35Z | |
dc.date.available | 2018-06-29T12:27:35Z | |
dc.date.created | 2018-06-29T12:08:56Z | |
dc.date.issued | 2018 | |
dc.identifier.citation | Chu, Y. and Tan, X. and Shen, Z. and Liu, P. and Han, N. and Kang, J. and Duan, X. et al. 2018. Efficient removal of organic and bacterial pollutants by Ag-La0.8Ca0.2Fe0.94O3-δ perovskite via catalytic peroxymonosulfate activation. Journal of Hazardous Materials. 356: pp. 53-60. | |
dc.identifier.uri | http://hdl.handle.net/20.500.11937/68899 | |
dc.identifier.doi | 10.1016/j.jhazmat.2018.05.044 | |
dc.description.abstract |
© 2018 Elsevier B.V. Removal of toxic organics and bacterial disinfection are important tasks in wastewater treatment. Most heavy metal-based catalysts for degradation of aqueous organic pollutants in heterogeneous Fenton-like processes suffer from the toxicity of leached metals. The present work reports environmentally benign systems for both degradation of organics and bacterial disinfection. Calcium substituted LaFeO 3- d perovskite was demonstrated as an efficient catalyst to activate peroxymonosulfate (PMS) for degradation of phenol, methylene blue and rhodamine 6 G. Compared to LaFeO 3- d and nanocrystal Fe 3 O 4 , the lattice oxygen vacancies in B-site cation-deficient perovskite of La 0.8 Ca 0.2 Fe 0.94 O 3 - d (LaCaFeO 3- d ) particles renders this material a greatly improved catalytic performance. Electron paramagnetic resonance (EPR) suggested that both sulfate (SO 4 [rad]–) and hydroxyl radicals ([rad] OH) played critical roles in the advanced oxidation processes. Moreover, silver doped perovskite (Ag-LaCaFeO 3- d )/PMS successfully inhibited the growth of waterborne pathogen Escherichia coli and Methicillin-resistant Staphylococcus aureus (MRSA) at a lower dose than silver ions, proving a synergetic effect between free radicals and Ag + in killing the bacteria. Therefore, Ag-LaCaFeO 3- d /PMS would be promising for practical wastewater treatment. | |
dc.publisher | Elsevier BV | |
dc.relation.sponsoredby | http://purl.org/au-research/grants/arc/DP150103026 | |
dc.title | Efficient removal of organic and bacterial pollutants by Ag-La0.8Ca0.2Fe0.94O3-δ perovskite via catalytic peroxymonosulfate activation | |
dc.type | Journal Article | |
dcterms.source.volume | 356 | |
dcterms.source.startPage | 53 | |
dcterms.source.endPage | 60 | |
dcterms.source.issn | 0304-3894 | |
dcterms.source.title | Journal of Hazardous Materials | |
curtin.department | WASM: Minerals, Energy and Chemical Engineering (WASM-MECE) | |
curtin.accessStatus | Fulltext not available |
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