Typical Synthesis and Environmental Application of Novel Ti Nanoparticles - Advanced Materials for Agriculture, Food and Environmental Safety - page 419

15
Typical Synthesis and Environmental
Application of Novel TiO 2 Nanoparticles
Tanmay Kumar Ghorai
Department of Chemistry, West Bengal State University, Kolkata,
West Bengal, India
Abstract
In the 21st century, water pollution has become a major worldwide problem due
in large part to the textile industry. h erefore the emphasis of this chapter will be
on novel TiO 2 -based nanoparticles that will continue to play an important role in
the implementation of ei cient, consistent and proi table techniques to remove
pollutants (organic/inorganic) from wastewater. h is chapter also focuses on the
preparation, characterization and application of noble metal nanoparticles, transi-
tion metal ions, and nonmetal-doped titania networks. A review is presented of
the ef ects of operating parameters on the photocatalytic degradation of textile
dyes using TiO 2 -based photocatalysts. h e i ndings reveal that various parameters,
such as the initial pH of the solution to be degraded, oxidizing agents, temperature
at which the catalysts must be calcined, dopant(s) content and catalyst loading,
exert their individual inl uence on the photocatalytic degradation of any dye in
wastewaters. It was also found that the sol-gel or chemical methods are widely
used in the production of TiO 2 -based photocatalysts because of the advantage
derived from their ability to synthesize nanosized crystallized powder of the pho-
tocatalysts with high purity at relatively low temperature.
Keywords: Synthesis, TiO 2 nanoparticles, photocatalysts, environmental application
15.1 Introduction
Environmental science is a multidisciplinary science involving chemistry,
physics, life science, agriculture, medical science, public health, sanitary
engineering, etc. In simple terms, it is the science of chemical phenomenon