ABSTRACT
Photocatalysis is a photon-induced reaction based on the absorption of light and active involvement of a photocatalyst. A photocatalytic reactor is commonly used to carry out such reactions, which minimize the concentration of harmful contaminants in the air and wastewater streams. These photocatalytic reactors are also used for research purposes and different commercial applications. The present chapter highlights the concerted information of photocatalytic reactors along with a brief prologue, characteristics, modeling formulation, and the effect of various parameters, i.e., pH, catalyst loading, temperature, light intensity and wavelength. Modeling plays an important role in designing a reactor in an effective manner followed by fundamental laws of momentum, mass, and energy. Therefore, the main focus in the present chapter is drawn upon a step-by-step approach for modeling formulation of a photocatalytic reactor to meet the requirement of different applications in the numerous fields of science and technology, i.e., chemical fluid dynamics. Photocatalysis is a sustainable and environmental friendly technology in which a photocatalytic reactor is used for a variety of applications, such as purification of air and water.
