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dc.contributor.authorChu, Y.
dc.contributor.authorTan, X.
dc.contributor.authorShen, Zhangfeng
dc.contributor.authorLiu, Pengyun
dc.contributor.authorHan, Ning
dc.contributor.authorKang, Jian
dc.contributor.authorDuan, Xiaoguang
dc.contributor.authorWang, Shaobin
dc.contributor.authorLiu, Lihong
dc.contributor.authorLiu, Shaomin
dc.identifier.citationChu, 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.

© 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.publisherElsevier BV
dc.titleEfficient removal of organic and bacterial pollutants by Ag-La0.8Ca0.2Fe0.94O3-δ perovskite via catalytic peroxymonosulfate activation
dc.typeJournal Article
dcterms.source.titleJournal of Hazardous Materials
curtin.departmentWASM: Minerals, Energy and Chemical Engineering (WASM-MECE)
curtin.accessStatusFulltext not available

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