A Study on the Crucial Reaction Parameters Involved in Photocatalytic and Sonophotocatalytic Removal of Organic Pollutants
2022
Das, Abinash | Ningthoukhongjam, Pujita | Nair, Ranjith G.
In the past few decades, extensive research has been carried out to develop efficient photocatalysts at the expense of exclusive material engineering approaches. Besides materials engineering, photocatalytic reaction parameters such as catalyst loading, irradiation intensity, reaction temperature, ultrasound, pH, and initial concentration also play a vital role in improving the overall performance of the photocatalytic process. In sharp contrast, the current study aims to showcase the role of core reaction parameters in optimizing the performance of the photocatalyst for efficient photocatalysis and ultrasound-assisted photocatalysis (sonophotocatalaysis). This work has two-fold objectives. Primarily, this study is intended to identify the core parameters involve in photocatalytic/sonophotocatalytic process from the comprehensive literature review followed by the experimental validation to optimize the same. Consequently, it has been established that under optimal reaction conditions, the synergistic effect of photocatalysis along with sonication holds better performance compared to the standalone process. The current study validates that the optimization of the different reaction parameters can boost the performance of the photocatalytic process significantly without employing exceptionally sophisticated and expensive approaches. Thus, the assessment of various factors associated with photocatalysis could be the vital for large-scale applications.
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