In summary, the particle size analysis confirms the accuracy of the doping process for the five photocatalysts. The results not only validate the precision of the doping technique but also provide insights into the potential photocatalytic performance of these materials. The uniformity in particle size distribution is indicative of the photocatalysts' capability to function effectively, which is promising for their application in various fields. Future research could further refine the doping process to enhance efficiency and explore the scalability of the method for broader industrial applications. The continued development of these photocatalysts holds great promise for advancing sustainable technologies and addressing environmental challenges.