Abstract
Photocatalytic properties of persistent luminescent rare earth doped SrAl2O4 phosphor under solar radiation
Highlights
Today, environmental pollution is major concern, especially resulting from volatile organic compounds like benzene or textile dyes, like Methylene blue, Congo red, etc.; these volatile organic compounds are known to be toxic and carcinogenic
This paper aims to study the photocatalytic properties of strontium aluminate phosphors
When photocatalysts are dispersed in water, they absorb UV or sun light to produce electron-hole pairs which in turn generate free radicals that take part in secondary reactions which removes organic pollutants from water [3]
Summary
Environmental pollution is major concern, especially resulting from volatile organic compounds like benzene or textile dyes, like Methylene blue, Congo red, etc.; these volatile organic compounds are known to be toxic and carcinogenic. Photocatalysis is a kind of advanced oxidation process to remove organic pollutants from water [1, 2]. Rare earth doped alkaline earth aluminates are a very important class of luminescent materials due to their higher quantum efficiency and persistent luminescence [10]. They are good host materials and have wide band gaps, they have been suggested for possibile application such as development of white LED’S, gamma ray dosimeter, pressure sensor, stress sensor, environmental radiation dosimetry, luminescent paint, emergency exit lamps, radiation detection [11, 12] etc. There are few papers which report persistent luminescent phosphors prepared by combustion method as photocatalytic materials
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