Influence of Tetraalkylammonium Compounds on Photocatalytic and Physical Properties of TiO 2
作者： Natalya Sankova , Viktoriya Semeykina , Dmitry Selishchev , Tatyana Glazneva , Ekaterina Parkhomchuk
DOI: 10.1007/S10562-018-2455-8
关键词:
摘要: A wide range of experimental data are reported for the first time on TiO2 prepared by hydrolysis highly concentrated Ti(OiPr)4 in water solutions quaternary ammonium compounds (QACs). These materials have been shown to be photocatalytically active under visible light irradiation (LED, 450 nm) using acetone as a model substrate oxidized gas phase. Five-fold increase activity comparison with commercial photocatalyst KRONOClean 7000 is achieved. Colloidal hydrolyzed studied SAXS method suggesting way which QACs may influence final composition TiO2. Phase composition, morphology, texture and surface properties modified XRD, BET, SEM low-temperature FTIR CO probe. The elemental has investigated XPS method. Additional low-energy levels high concentration acid sites originated from N/C-doping, likely main reasons exceptional photocatalytic performance these samples.
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