Naslov
Synthesis of nanocrystalline eskolaite via grimaldiite

Autori
Robić, Marko ; Ristić, Mira ; Krehula, Stjepko ; Jurić, Marijana ; Musić, Svetozar

Izvornik
Chemical papers (2585-7290) 75 (2021), 2; 735-741

Vrsta, podvrsta i kategorija rada
Radovi u časopisima, članak, znanstveni

Ključne riječi
Grimaldiite ; Eskolaite ; HMTA ; Nanocrystallinity ; Rhodamine B

Sažetak
Grimaldiite (α-CrOOH) was precipitated hydrothermally from the CrCl3 aqueous solution in the presence of hexamethylenetetramine (HMTA). The crystallite size of grimaldiite samples was estimated to be ~ 2 nm. Eskolaite (α-Cr2O3) was produced by the calcination of grimaldiite at 500 and 700 °C. FE-SEM images showed amorphous-like aggregates of grimaldiite due to very fine particles (crystallites), whereas eskolaite was in the form of sphere-like nanoparticles. Synthesized grimaldiite and eskolaite were used in the investigation of rhodamine B (RhB) degradation. The significant degradation percentage of RhB obtained by grimaldiite was explained as catalytic effect (in dark) and photocatalytic contribution (with illumination).

Izvorni jezik
Engleski

Znanstvena područja
Kemija

POVEZANOST RADA