Taisiya O. Kozlova, Ekaterina D. Sheichenko, Darya N. Vasilyeva, Daniil A. Kozlov, Irina V. Kolesnik, Ilya V. Tronev, Maria A. Teplonogova, Alexander Y. Baranchikov, Vladimir K. Ivanov, “Ultrasonic-assisted hydrothermal synthesis of nanoscale double ceric phosphates”, Nanosystems: Physics, Chemistry, Mathematics, 2024, Volume 15, Issue 2,Pages <nobr>215

CHEMISTRY AND MATERIAL SCIENCE

Ultrasonic-assisted hydrothermal synthesis of nanoscale double ceric phosphates

Taisiya O. Kozlova^a, Ekaterina D. Sheichenko^ab, Darya N. Vasilyeva^ab, Daniil A. Kozlov^a, Irina V. Kolesnik^ac, Ilya V. Tronev^ab, Maria A. Teplonogova^a, Alexander Y. Baranchikov^a, Vladimir K. Ivanov^a

^a Kurnakov Institute of General and Inorganic Chemistry of the Russian Academy of Sciences, Moscow, Russia
^b National Research University Higher School of Economics, Moscow, Russia
^c Lomonosov Moscow State University, Moscow, Russia

Abstract: The combination of ultrasonic exposure on ceric phosphate gels with subsequent hydrothermalmicrowave treatment resulted in the formation of nanoscale NH$_4$Ce$_2$(PO$_4$)$_3$ or KCe$_2$(PO$_4$)$_3$ phases. The sun protection factor (SPF) and protection factor against UV-A radiation (UVAPF) values for double ceric phosphates with the smallest crystallite sizes exceeded 4 and 3.5, respectively, which is much higher than the values for samples consisting of larger particles. These results are superior to previously published values for similar ceric compounds, and thus show promise for their application in sunscreens.

Keywords: cerium, ultrasonic exposure, microwave, particle size, UV shielding.

Received: 30.01.2024
Revised: 10.02.2024
Accepted: 31.03.2024

Language: English

DOI: 10.17586/2220-8054-2024-15-2-215-223