Abstract
Institute of Solid State Physics, University of Latvia as the Center of Excellence has received funding from the European Union’s Horizon 2020 Framework Programme H2020-WIDESPREAD-01-2016-2017-TeamingPhase2 under grant agreement No. 739508, project CAMART²
Highlights
In the world of an accelerated energy consumption [1] and generation [2] great amount of work is put in into investigation of reduction of the pollution from industry [1,3,4] as well as individual homes [5], to find most efficient way of energy usage and lower the levels of pollution, according to Paris Agreement [6]
Investigation of TiO2 surface morphology and polymorph phase is done by SEM and Raman spectroscopy
Stage I, anodization process begins with applied voltage, TiO2 layer grows on Ti substrate following drop of current density due to higher resistance
Summary
In the world of an accelerated energy consumption [1] and generation [2] great amount of work is put in into investigation of reduction of the pollution from industry [1,3,4] as well as individual homes [5], to find most efficient way of energy usage and lower the levels of pollution, according to Paris Agreement [6]. In materials with potential use for photocatalytic pollution degradation the most promising seems to be titanium dioxide (TiO2, titania) It can be used for transformation of solar energy into chemical energy for splitting of water into hydrogen and oxygen [8], CO2 reduction [9,10] and organic pollution degradation [7] as well as. A. Knoks et al.: Raman investigation of anodic titania phase distribution calcination temperatures [16]. It is necessary to find right calcination temperature for the synthesis method to ensure the desired polymorph phase composition as it influences the overall photocatalytic activity. Due to various possible outcomes of structural composition it is necessary to investigate the TiO2 surface for polymorph phase distribution. Correlation between optical absorption edge, charge carrier density and uniformity of phase distribution is reported
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