Facile method for fabrication of surfactant-free concentrated CeO₂sols

Strong Antibacterial Properties of Cotton Fabrics Coated with Ceria Nanoparticles under High-Power Ultrasound

“…The position of this band is notably shifted with respect to the corresponding band of bare TEMPO-oxidized cellulose (1604 cm -1 ) containing deprotonated carboxylic groups, which are coordinated with Na + ions. Such a shift reflects the changes in coordination mode of -COOgroups, indicating their interaction with positively charged [18] CeO 2 nanoparticles. FTIR spectroscopy of nanocrystalline cellulose (Figure 3C) shows a broad absorption band in the range of 3500-3100 cm −1 that relates to the stretching vibrations of the -OH groups; absorption bands of stretching vibrations of -CH and -CH2 at 2900 cm −1 ; stretching vibrations of C=O at 1650 cm −1 ; bending vibrations of CH2 at 1430 cm −1 ; and a broad absorption band of stretching vibrations of C-O-C and CO at 1200-1000 cm −1 [24,25].…”

“…The procedure of CeO 2 sol hydrothermal synthesis from ammonium hexanitratocerate (NH 4 ) 2 Ce(NO 3 ) 6 has been described in detail by Shcherbakov et al [18]. First, 2.33 g of (NH 4 ) 2 Ce(NO 3 ) 6 was dissolved in 23 mL of distilled water and placed in a glass autoclave.…”

New facets of nanozyme activity of ceria: lipo- and phospholipoperoxidase-like behaviour of CeO2 nanoparticles

“…An unstabilised colloidal solution of CeO 2 nanoparticles (0.13 M) was prepared by thermohydrolysis of an aqueous solution of ammonium cerium( iv ) nitrate (#215473, Sigma-Aldrich). 42 Briefly, an aqueous solution of ammonium cerium( iv ) nitrate (100 g L −1 ) was heated at 95 °C for 24 h. The precipitate formed was washed three times with isopropanol and then redispersed in deionised water and boiled for 1 h, with constant stirring, to remove isopropanol. The concentration of CeO 2 sol was determined gravimetrically.…”

Prooxidant potential of CeO2 nanoparticles towards hydrogen peroxide

“…An unstabilized aqueous colloidal solution of cerium dioxide nanoparticles (0.13 M) was prepared by thermohydrolysis of ammonium cerium(IV) nitrate (#215473, Sigma-Aldrich) [21]. Briefly, an aqueous solution of ammonium cerium(IV) nitrate (100 g/l) was kept for 24 h in an oven at 95 • .…”