Enhancing Photon Transfer Efficiency in Photocatalysis Using Suspended LED Lights for Water Treatment

Photocatalysis application in water treatment has been the object of many researchers worldwide recent decades. However, there are limited commercial applications due to low photon transfer efficiency, which create barriers leading challenges making process efficient and economically feasible. Fixed UV/visible light sources, generally located outside reactor or encapsulated quartz tube inside source energy activate photocatalyst generating powerful oxidants such as electrons holes. Suspended waterproof LED visible lights were employed enhance efficiency. Consequently, required was lower resulting negligible temperature increase eliminated need for an external cooler, no (UV transparent) treated glass reactors, enhanced mixing continuous movement bulbs by convective currents, minimum/no attenuation. Direct Blue 15 (DB15) dye used model compound P25 TiO2 (Average particle: 30 nm, Surface area: 50 m2 g−1). The samples taken at different time intervals analyzed UV-Vis. spectrophotometer (UV-3600), TOC-V CPN total organic carbon analyzer (both from Shimadzu). It found that same level degradation, degradation rate increased about 50% compared conventional fixed photoreactor. Overall, cost operation can be reduced substantially, paving road feasible commercialization process.