In order to test the viability of using a single material for both, capture and degradation of microplastics, we will evaluate the capability of the Pac-Man particles to decompose the polymer, which has been observed for a range of plastics in combination with photocatalysts. Looking at articles that pioneered the degradation of microplastics using advanced oxidative processes (AOPs), we clearly noticed a lack of suitable analytics to measure the activity. Therefore, we evaluate the photocatalytic degradation of an organic dye (Rhodamine B), which is, as opposed to the degradation of microplastics, easily trace-able by measuring the light absorption. RhB has a characteristic absorption peak at 553 nm and thus the degradation is observed within the absorbance range of 450 nm to 650 nm. The photodegradation of the dye is performed in presence of Pac-Man TiO 2 particles (1 g L -1 ) and UV light (950 µW cm -2 intensity and 365 nm wavelength). Before the degradation study, the catalyst is stirred with the dye solution for 30 minutes in order to reach an adsorption equilibrium within the pores of the catalyst, also noted by a slight decrease in absorbance of the dye (Figure ). When irradiated with light, the concentration of the dye (C/C 0 )