Synthesis of a Rationally Designed Multi-Component Photocatalyst Pt:SiO:TiO(P25) with Improved Activity for Dye Degradation by Atomic Layer Deposition.

Photocatalysts for water purification typically lack efficiency for practical applications. Here we present a multi-component (Pt:SiO:TiO(P25)) material that was designed using knowledge of reaction mechanisms of mono-modified catalysts (SiO:TiO, and Pt:TiO) combined with the potential of atomic layer deposition (ALD). The deposition of ultrathin SiO layers on TiO nanoparticles, applying ALD in a fluidized bed reactor, demonstrated in earlier studies their beneficial effects for the photocatalytic degradation of organic pollutants due to more acidic surface Si-OH groups which benefit the generation of hydroxyl radicals.

Origin of thermal degradation of Sr(2-x)Si5N8:Eu(x) phosphors in air for light-emitting diodes.

The orange-red emitting phosphors based on M(2)Si(5)N(8):Eu (M = Sr, Ba) are widely utilized in white light-emitting diodes (WLEDs) because of their improvement of the color rendering index (CRI), which is brilliant for warm white light emission. Nitride-based phosphors are adopted in high-performance applications because of their excellent thermal and chemical stabilities. A series of nitridosilicate phosphor compounds, M(2-x)Si(5)N(8):Eu(x) (M = Sr, Ba), were prepared by solid-state reaction.