Cerium oxide (CeO2-x) nanoparticles are well-known for their role in catalytic removal of reactive oxygen species (including hydrogen peroxide, superoxide anions and hydroxyl radicals). In the paper the interaction between oxyhalide anions of different kinds with Ce3+ ions in CeCl3 water solutions and the same ions in cerium oxide nanoparticles was compared using Ce3+ luminescence. Addition of hypochlorite and periodate anions to water solutions leads to Ce3+ -> Ce4+ oxidation, and, so to concentration-dependent decrease of Ce3+ luminescence intensity, which is reversible for nanoceria, but not for CeCl3 water solutions. Dependence of Ce3+ luminescence on oxidant concentration and reversibility of Ce3+/Ce4+ ratio open the way to apply nanoceria for sensing and removal of oxyhalides in drinking water.
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Univ Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Della Mea, Guilherme B.
Matte, Livia P.
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Univ Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Matte, Livia P.
Thill, Alisson S.
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Univ Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Thill, Alisson S.
Lobato, Francielli O.
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Univ Fed Rio Grande do Sul, Inst Quim, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Lobato, Francielli O.
Benvenutti, Edilson V.
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Univ Fed Rio Grande do Sul, Inst Quim, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Benvenutti, Edilson V.
Arenas, Leliz T.
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Univ Fed Rio Grande do Sul, Inst Quim, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Arenas, Leliz T.
Juergensen, Astrid
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Leibniz Inst Analyt Wissensch ISAS eV, Dortmund, GermanyUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Juergensen, Astrid
Hergenroeder, Roland
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Leibniz Inst Analyt Wissensch ISAS eV, Dortmund, GermanyUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Hergenroeder, Roland
Poletto, Fernanda
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Univ Fed Rio Grande do Sul, Inst Quim, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil
Poletto, Fernanda
Bernardi, Fabiano
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Univ Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, BrazilUniv Fed Rio Grande do Sul, Inst Fis, Programa Posgrad Fis, Porto Alegre, RS, Brazil