Book

Photocatalytic Treatment of Exhaust Gas explores the scientific principles and engineering challenges involved in using titanium dioxide (TiO₂) photocatalysis for the treatment of gaseous exhaust pollutants. Bringing together photochemistry, surface reactions, reactor engineering, and marine exhaust considerations, the book examines the potential of light-activated TiO₂ surfaces to transform pollutants such as nitrogen oxides (NO_x), sulphur oxides (SO_x), carbon monoxide (CO), and volatile organic compounds (VOCs). The book progresses from the fundamentals of semiconductor photocatalysis and reactive oxygen species to pollutant transformation mechanisms, catalyst configuration, UV illumination, gas-flow management, residence time, pressure drop, condensate handling, and catalyst regeneration. It also presents a compact TiO₂-based reactor concept and discusses preliminary observations from a practical prototype. Particular emphasis is placed on the distinction between proof of concept and quantitative validation. The book identifies the measurements, controls, calibration procedures, and experimental methods required to establish reliable pollutant-conversion data. Designed for students, researchers, and marine engineering professionals, this monograph provides an engineering-oriented foundation for further research into photocatalytic exhaust treatment.