An Overview on Characterization of Silver/Cuprous Oxide Nanometallic(Ag/Cu2O) As Visible Light Photocatalytic

Abstract

Noble metals (Pt, Ag, Pd and Au) and metal oxide (Cu₂O ,ZnO ,TiO₂ and SnO₂) have been widely attracteddue totheir valuable properties and wide range using such as solar cells, photocatalysis, drug delivery and enhanced Raman spectroscopy. Silver-cuprous oxide Nanometallic, metal semiconductors hybrid structure is extensively explored as it has shown remarkable properties. Ag is a cheap noble metal and able to be fabricated at a nanoscale dimension that later found having unique properties for application such as a sensor, catalyst, optical and thermal devices. Cu₂O is also cheap, earth-abundant material, non-toxic with the narrow a direct-band gap (2.0-2.2) eV, that become a sought out photocatalyst material for solar energy conversion application. Several methods of preparation of Ag-Cu₂O Nanometallic are briefly discussed such as electron beam irradiation, high-pressure sputtering, electrochemical deposition method, one-pot solution phase process and micro-fluidic based method.Further manipulation of (Ag-Cu₂O)Nanometallic enables enhancement of the hybrid material by varying the structure, grain size, morphology and the concentration of both materials. This paper focuses on recent advances of the hybrid metal oxide of Ag-Cu₂O and its photocatalytic behavior. The idea of Cu₂O in contact with Ag has an improved photocatalytic effect due to the effectivedetachment of the photo-generated charges within Cu₂O caused by Ag. Also,it’sobserved that the photocatalytic behavior of the Ag-Cu₂O is more stable than the pristine Cu₂O.