Preparation of Au/TiO2 nanocomposites and their catalytic activity for DPPH radical scavenging reaction

Ag-loaded TiO2/reduced graphene oxide nanocomposites for enhanced visible-light photocatalytic activity

“…As source for silver nanoparticles, AgNO 3 was used at different loading weights and deposition was achieved by chemical reduction of metal ions into metallic nanoparticles [26].…”

“…7a). Metal (Ag) -support (TiO 2 P25) interactions with regard to the photocatalytic activity are closely related to the size and morphology of the metal nanoparticles as well as electronic interactions between the nanoparticles and support [26]. In general, chemical reduction proceeds rapidly and in order to reduce all Ag ions involved, a few seconds were required.…”

“…Consequently, small and close to spherical nanoparticles were obtained (see Figs. 5a and b), as fast reduction methods produce a larger number of metal atoms limiting their nucleation, thus leading to smaller particles [26,37].…”

Scavenging DPPH radicals catalyzed by binary noble metal–dendrimer nanocomposites

“…The reciprocal half-life was employed to compare the catalytic activities of various nanocomposites. It was estimated by fitting the data to a simple exponential decay function, A t = A 0 e −kt [4,5,8]. Absorption by the catalyst (metal-dendrimer nanocomposites) was subtracted from that of the reaction mixture.…”

“…Recently, it was found that the nanoparticles are also efficient scavengers of lipid radicals. Gold nanoparticles deposited on rutile titania particles and rods showed high catalytic activity for reduction of DPPH radicals [8].…”