Estimating the degradation of methylethionium chloride dye on nanotubular TiO2 structure
By K.M. Deen and A. Farooq and M.A. Raza and R. Ahmad and W. Haider
Published in Journal of Industrial and Engineering Chemistry
NULL
2015
Abstract
In this study the photocatalytic behavior of as-anodized and heat treated surfaces of Ti6Al4V was investigated electrochemically in methylethionium chloride solution in dark and under illumination at 60 W and 100 W. X-ray diffraction pattern of as-anodized surface revealed oxygen deficient Ti6O phase, which was converted to rutile/anatase phases by heat treatment in air. Potentiodynamic scans showed variation in current density during anodic polarization due to the electronic traps within sub-band energy states by the amorphous nature of as formed structure hence lower catalytic activity than heat-treated specimen. Impedance spectroscopy of heat-treated surface in dye solution under dark and light depicted lower charge transfer resistance, recombination admittance and higher charge transfer coefficient than as-anodized. The UV
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