Abstract
Titanium dioxide and strontium silicate-loaded titanium dioxide photocatalysts are prepared via a simple chemical precipitation technique using titanium tetrachloride as the precursor solution in an alkaline medium. Different characterization techniques such as x-ray diffraction analyses, field emission scanning electron microscopic analyses, transmission electron microscopic analyses, energy dispersive x-ray analyses and bet surface area studies are carried out for the synthesized photocatalysts. The enhancement in the photocatalytic activity of the strontium silicate loaded titanium dioxide against the bare titanium dioxide catalyst is investigated using congo red dye as a model pollutant. The parameters such as catalyst concentration, pH and initial dye concentration are optimized to achieve maximum degradation of congo red dye using the modified titanium dioxide photocatalyst. The kinetic studies using the Langmuir-Hinshelwood model are investigated to study the rate and order of the photocatalytic dye degradation process.
Published Version
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