Synthesis and photocatalytic activity of hydroxyapatite modified nitrogen-doped TiO2
作者： Y. Liu , Q. Yang , J.H. Wei , R. Xiong , C.X. Pan
DOI: 10.1016/J.MATCHEMPHYS.2011.05.021
关键词:
摘要: Abstract TiO2 is a promising material as photocatalyst for photodecomposition of hazardous organic pollutants under illumination, however, the low adsorption abilities, quantum yields and lack visible-light utilization hinder its practical application. In an attempt to extend light absorption TiO2-based towards visible range improve photocatalytic activity, new photocatalyst, HAP-modified N-TiO2 (HAP-N-TiO2) was synthesized by facile wet chemical method. The properties HAP-N-TiO2 were investigated X-ray diffraction, transmission electron microscopy, photoelectron spectroscopy, nitrogen adsorption–desorption isotherm measurement, UV–visible photocurrent measurement. activity samples evaluated decomposition gaseous acetone irradiation. research results demonstrated that 10%-HAP-N-TiO2 sample shows best which much superior other remarkable may arise from synergism between on hydroxyapatite photoactivity titania. N-doping makes composite also active
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