<i>CelluPhot</i>: Hybrid Cellulose−Bismuth Oxybromide Membrane for Pollutant Removal
Joy Onwumere, Jędrzej Piątek, Tetyana M. Budnyak, Jianhong Chen, Serhiy Budnyk, Zoheb Karim, Thomas Thersleff, Piotr Kuśtrowski, Aji P. Mathew, Adam Slabon
Abstract
/BiOBr showed higher affinity to Co(II) ions than to Ni(II) ions from diluted aqueous solutions. The bioinorganic composite demonstrates a synergistic effect in the photocatalytic degradation of rhodamine B (RhB) by exceeding the removal efficiency of single components. The fabrication of the biologic-inorganic interface was confirmed by various analytical techniques including scanning electron microscopy (SEM), scanning transmission electron microscopy with energy dispersive X-ray spectroscopy (STEM EDX) mapping, X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The presented approach for controlled formation of the bioinorganic interface between natural material (cellulose) and nanoscopic inorganic materials of tailored morphology (Bi-O-Br system) enables the significant enhancement of materials functionality.