Open AccessFABRICATION AND STRUCTURAL CHARACTERIZATION OF SrSiO3/TiO2 PHOTOCATALYST FOR THE DEGRADATION OF CONGO RED DYE UNDER SUNLIGHT
Author(s) -
Preeja P. Thattil,
A. Leema Rose
Publication year - 2022
Publication title -
rasayan journal of chemistry/rasayan journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.281
H-Index - 22
eISSN - 0976-0083
pISSN - 0974-1496
DOI - 10.31788/rjc.2022.1516821
Subject(s) - photocatalysis , titanium dioxide , congo red , materials science , catalysis , titanium , nuclear chemistry , strontium , chemical engineering , inorganic chemistry , chemistry , adsorption , metallurgy , organic chemistry , engineering
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.