Significance of the surface and bulk features of hierarchical TiO2 in their photocatalytic properties

Solvothermal crystallization is an adequate approach for preparing differently shaped TiO2 crystalline materials because it highly sensitive to the synthesis parameters change. This study presents two sample series, one prepared from tetraisopropyl orthotitanate TTIP and tetrabutyl TBU. The influence of applied temperature, different capping agents' amount, precursor volume ratio affected measured characteristics (crystal phase composition, primary crystallity size, morphology, surface chemistry optical properties). Although samples revealed strong differences in crystal size distribution, mostly spherical hierarchical morphology was achieved. as-prepared were photocatalytic processes assess their efficiency under UV light examine structural features on process. Not only chosen but subtle changes listed resulted catalytical performance differences. Besides composition Ti3+ Ti4+ species, found that organic particularities influenced semiconductors’ performance.