A Novel Au@Cu₂O-Ag Ternary Nanocomposite with Highly Efficient Catalytic Performance: Towards Rapid Reduction of Methyl Orange Under Dark Condition.

ABSTRACT: Au@Cu₂O core-shell nanocomposites (NCs) were synthesized by reducing copper nitrate on Au colloids with hydrazine. The thickness of the Cu₂O shells could be varied by adjusting the molar ratios of Au: Cu. The results showed that the thickness of Cu₂O shells played a crucial role in the catalytic activity of Au@Cu₂O NCs under dark condition. The Au@Cu₂O-Ag ternary NCs were further prepared by a simple galvanic replacement reaction method. Moreover, the surface features were revealed by TEM, XRD, XPS, and UV-Vis techniques. Compared with Au@Cu₂O NCs, the ternary Au@Cu₂O-Ag NCs had an excellent catalytic performance. The degradation of methyl orange (MO) catalyzed by Au@Cu₂O-Ag NCs was achieved within 4 mi

SUBMITTER: Wu T 

PROVIDER: S-EPMC7023264 | biostudies-literature | 2019 Dec

REPOSITORIES: biostudies-literature