Cerium-Bismuth Oxides/Oxynitrates with Low Toxicity for the Removal and Degradation of Organophosphates and Bisphenols

0566400 - ÚACH 2023 RIV US eng J - Článek v odborném periodiku
Henych, Jiří - Šťastný, Martin - Němečková, Zuzana - Kormunda, M. - Šanderová, Z. - Žmudová, Z. - Ryšánek, P. - Stehlík, Štěpán - Ederer, J. - Liegertová, M. - Trögl, J. - Janoš, P.
Cerium-Bismuth Oxides/Oxynitrates with Low Toxicity for the Removal and Degradation of Organophosphates and Bisphenols.
ACS Applied Nano Materials. Roč. 5, č. 12 (2022), s. 17956-17968. ISSN 2574-0970
Grant CEP: GA MŠMT(CZ) LM2018124; GA TA ČR(CZ) TH76030002
Výzkumná infrastruktura: CzechNanoLab - 90110
Institucionální podpora: RVO:61388980 ; RVO:68378271
Klíčová slova: nanoceria * bismuth * photocatalysis * reactive adsorption * paraoxon methyl * bisphenol S * bisphenol A
Obor OECD: Inorganic and nuclear chemistry; Condensed matter physics (including formerly solid state physics, supercond.) (FZU-D)
Impakt faktor: 5.9, rok: 2022
Způsob publikování: Open access s časovým embargem
https://pubs.acs.org/doi/10.1021/acsanm.2c03926

Nanoscale cerium-bismuth oxides/oxynitrates were prepared by a scalable low-temperature method at ambient pressure using water as the sole solvent. Solid solutions were formed up to a 1:1 Ce/Bi molar ratio, while at higher doping levels, bismuth oxynitrate photocatalysts with a pronounced layered structure were formed. Bismuth caused significant changes in the structure and surface properties of nanoceria, such as the formation of defects, oxygen-containing surface groups, and Lewis and Bronsted acid sites. The prepared bifunctional adsorbents/photocatalysts were efficient in the removal of toxic organophosphate (methyl paraoxon) from water by reactive adsorption followed by photocatalytic decomposition of the parent compound and its degradation product (p-nitrophenol). Bi-doped ceria also effectively adsorbed and photodegraded the endocrine disruptors bisphenols A and S and outperformed pure ceria and the P25 photocatalyst in terms of efficiency, durability, and long-term stability. The very low toxicity of Bi-nanoceria to mammalian cells, aquatic organisms, and bacteria has been demonstrated by comprehensive in vivo/in vitro testing, which, in addition to its simple “green” synthesis, high activity, and durability, makes Bi-doped ceria promising for safe use in abatement of toxic chemicals.
Trvalý link: https://hdl.handle.net/11104/0337740