The ultrasonic treatment as a promising method of nanosized oxide CeO-MoO composites preparation
Springer Proceedings in Physics, ISSN: 1867-4941, Vol: 214, Page: 297-309
2018
- 10Citations
- 3Captures
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Conference Paper Description
The influence of ultrasonic treatment (UST) of oxide CeO-MoO system with atomic ratio Ce/Mo = 15:85, 25:75, 50:50, and 75:25 on their properties was investigated. The prepared samples were characterized by means of XRD, ESR, N adsorption, FT-IR-spectroscopy, SEM, and TEM methods. The catalytic properties of the samples in selective ethanol oxidation to acetaldehyde and their adsorption capacity relation to dye removal from water solutions were studied. The decrease of oxides particles size with nanoparticles formation as result of CeO chaotic destruction and MoO anisotropic deformation was established. It was shown that UST leads to an increase of the composition-specific surface area, formation of structural defects, and strong interaction between oxides nanoparticles. The change of physicochemical properties of the compositions as result of their sonochemical treatment leads to increase their catalytic and adsorption properties. The samples obtained after UST demonstrate very promising results in oxidative dehydrogenation of ethanol to acetaldehyde, and the treated composition with ratio Ce/Mo = 50:50 permits to obtain the acetaldehyde yield equal to 96% at reaction temperature 200 °C. On the other hand, sample with Ce/Mo = 75:25 has high adsorption capacity in process of dye removal from water solution.
Bibliographic Details
http://www.scopus.com/inward/record.url?partnerID=HzOxMe3b&scp=85049620585&origin=inward; http://dx.doi.org/10.1007/978-3-319-92567-7_18; http://link.springer.com/10.1007/978-3-319-92567-7_18; http://link.springer.com/content/pdf/10.1007/978-3-319-92567-7_18; https://dx.doi.org/10.1007/978-3-319-92567-7_18; https://link.springer.com/chapter/10.1007/978-3-319-92567-7_18
Springer Nature
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