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Improved Electrode Performance In Microbial Fuel Cells And The Enhanced Visible Light-Induced Photoelectrochemical Behaviour Of Ptox@M-Tio2 Nanocomposites, Mohammad Mansoob Khan Dr
Improved Electrode Performance In Microbial Fuel Cells And The Enhanced Visible Light-Induced Photoelectrochemical Behaviour Of Ptox@M-Tio2 Nanocomposites, Mohammad Mansoob Khan Dr
Dr. Mohammad Mansoob Khan
Visible light active PtOx@M-TiO2 and PtOx@P-TiO2 (x = 0, 1 and 2) nanocomposites were fabricated via a simple, green and environmentally benign process using an electrochemically active biofilm. The formation of the PtOx@M-TiO2 and PtOx@P-TiO2 nanocomposites was confirmed by X-ray diffraction, ultraviolet–visible–near infrared spectrophotometry, photoluminescence spectroscopy, and X-ray photoelectron spectroscopy (XPS). XPS revealed the presence of Pt0, Pt2+ (PtO) and Pt4+ (PtO2) species on the surface of M-TiO2 and P-TiO2. The presence of mixed valence states of PtOx on the surface of the PtOx@M-TiO2 nanocomposite and defect states in M-TiO2 helps absorb visible light more efficiently compared to the PtOx@P-TiO2 …