Title : Shining a light on dye removal: A scoping review on the commercial viability of photocatalytic degradation of methylene blue dye
Abstract:
Methylene blue dye, a pollutant hazardous to living organisms, has been researched deeply on how it can be broken down into non-harmful substances. Photocatalytic degradation has been seen to have high efficiency compared to other methods, and existing studies are focused on increasing effectiveness and photocatalytic degradation rates by increasing the surface area, changing the synthesis process, and forming nanocomposites. However, this does not equate to the photocatalysts being used for real-world applications, as reaction conditions may not be environmentally feasible and/or the process may not be commercially viable. Several photocatalysts have been researched to identify a low cost, non-toxic, chemical stable and highly efficient solution. The aim of this paper is to find more commercially viable and environmentally feasible photocatalysts. The literature review is extended from Din et. al (2021). A scoping review of efficient photocatalysts was carried out, selecting photocatalysts with degradation percentages above 90% and irradiation times shorter than 180 minutes, was conducted, and after finding limitations and advantages to each, they were compared against each other. This research expects to find a catalyst with a simple preparation process, low costs, feasibility, sustainability, and no adverse effects on the water. This paper contributes to the research on methylene blue dye degradation and looks at how commercially viable catalysts are, leading to more knowledge on real-world applications of photocatalysts.
