A Highly Efficient and Stable Visible-Light Plasmonic Photocatalyst Ag-AgCl/CeO<sub>2</sub>

Abstract

Noble metal Ag nanoparticles with unique surface plasmon resonance property have attracted much attention recently in the field of photocatalysis. Based on the advantages of Ag nanoparticles and semiconductor CeO 2 , a novel plasmonic photocatalyst Ag-AgCl/CeO 2 was prepared with a facile route. The as-prepared samples were characterized using scanning and transmission electron microscopy, X-ray photoelectron spectroscopy and UV-vis diffusion reflection spectroscopy. This metal-semiconductor nanocomposite plasmonic photocatalyst exhibited a high visible-light photocatalytic activity and good stability for photocatalytic degradation of methyl orange in water. Ag-AgCl/CeO 2 will be a potentially promising plasmonic photocatalysts for organic pollutant degradation and water purification.

Facet-Dependent Photodegradation of Methylene Blue Using Pristine CeO2 Nanostructures

“…23 The appreciable high surface area of Ce-3 is definitely a boosting parameter behind its superior catalytic activity. 24 The growth of preferential planes controls the formation of different shapes of nanocrystals. 25 The formation of exposed facets with higher surface energies may provide the active sites for catalytic reactions.…”

Characterization of CeO 2 crystals synthesized with different amino acids

“…Among the rare-earth metal oxides, cerium oxide (CeO 2 ) nanoparticles have been investigated intensively because they have a wide range of industrial applications. This material is used as three-way catalysts for exhaust gas from automobiles [5], as solid oxide fuel cells [6], polishing agents [7], semiconductor devices [8], and ultraviolet (UV)-shielding materials [9]. CeO 2 is often synthesized by calcination of cerium hydroxide carbonate (CeOHCO 3 ) precursors and usually retains the precursor's morphologies even at higher temperatures.…”

An overview of nanoscale materials on the removal of wastewater contaminants

“…To solve these defects, nanoscale materials are used for the removal of heavy metals from the wastewater. There is a wide range of nanoscale sorbents such as CNT, carbon-based materials composites, graphene, nanometals or metal oxides and polymeric sorbents with high adsorption capacities (Wang et al 2011). They are briefly discussed below:…”