An easily Available Biocarrier Material Mycelium Pellet Assembled with OMS-2 for Dye Degradation

Dye pollution has become a major threat to the environment. Advanced oxidation processes (AOPs) are widely used in dye wastewater treatment, and the selection of catalyst is of great significance. In this study, a novel composite material OMS-2/hyphae was prepared through self-assembly technique. Mycelium pellets of carrier material were prepared using a waste biomass resource as the medium of Aspergillus niger . The composite material was characterized by polarized light microscopy (PLM), X-ray diffraction (XRD), Fourier-transform infrared spectrometer (FTIR), and scanning electron microscope (SEM). The results showed that the mycelium pellet was an applicable biocarrier material for successful loading of nano OMS-2 with nearly no changes of structure. To explore the catalytic properties of such material, reactive brilliant red X-3B was selected as pollutant. The degradation capacity brought by composite material was up to 80% within 35 min, which was much higher than that with the pure OMS-2 or mycelium pellet. After four cycles, the degradation efficiency of dye was maintained above 50%, and the material was remained stable. This study provided some useful information for the application of environmentally friendly biomass material in wastewater treatment.