A Critical Review of the Evaluation of Sio2-Incorporated Tio2 Nanocomposite for Photocatalytic Activity

The main aim of the present study was to determine the impact of the Silica (SiO2) on the photocatalytic activity of Titanium dioxide (TiO2) nano composite at various circumstance of preparation. Over the past few decades, there has been an increasing trend toward researching novel photocatalysts for water purification and protecting the environment from pollution. These organic pollutants have been degraded using various methods, including sophisticated heterogeneous photocatalysis (PHCs) using titanium dioxide (TiO2). One of the most promising technologies seems to be using a TiO2 photocatalyst. An appropriate architecture that reduces electron loss during the excitation state and promotes the absorption of photons is necessary to maintain the high efficiency of the TiO2 photocatalyst in heterogeneous PHCs reactions. The heterogeneous PHCs under UV–visible solar light must be significantly improved to further enhance the flow of photo-induced charge carriers during the excitation state. Recently, the intriguing and distinctive characteristics of binary oxide photocatalyst systems or silica (SiO2) doping have attracted much attention and have become a favorite subject of study for many scientific organizations. Compared to pure TiO2, the features of this SiO2 doping were found to improve the photocatalytic (PHC) behavior by increasing the surface area of the TiO2 photocatalyst system. Therefore, this work critically reviews the modification of TiO2/SiO2 photocatalysts for pollutant degradation.