Hydrothermal Synthesis of TiO2 Nanoparticles with Enhanced Photocatalytic Activity under Sunlight
Using urea and PEG-4000 together to control the morphology and dispersibility, TiO2 nanoparticles with a good dispersion, narrow particle size distribution and large BET were prepared by a hydrothermal method. TEM, HRTEM, N2 adsorption, X-ray diffraction (XRD) and UV-vis spectroscopy were used to characterize the TiO2 particles. The obtained TiO2 particles were a mixture of anatase and rutile in size of around 5 nm. The function of urea and PEG-4000 in the synthesis process of TiO2 nanoparticles was discussed. The photocatalytic activity of the prepared TiO2 particles was tested by the degradation of the Reactive Brilliant Blue KN-R dye in water under sunlight. It exhibited excellent photocatalytic activity under sunlight, degrading 80％ of the dye in 100 min.
Preparation Nanosized TiO2 urea PEG-4000 photocatalysis sunlight
胡绍争 王安杰 李翔 Holger Lowe
精细化工国家重点实验室,大连理工大学,辽宁 大连 116012 精细化工国家重点实验室,大连理工大学,辽宁 大连 116012;辽宁省石油化工技术与装备重点实验室,大连理工大学,116012 茵茨大学有机化学系,美茵茨,德国
国际会议
成都
英文
2007-11-19（万方平台首次上网日期，不代表论文的发表时间）