Hydrothermal Synthesis of TiO2 Nanoparticles with Enhanced Photocatalytic Activity under Sunlight

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外文摘要：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。

外文关键词：

PreparationNanosized TiO2ureaPEG-4000photocatalysissunlight

作者：

Z.B.Ye L、Du Z.H、Fan R.S.Chen

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作者单位：

Department of Communication Engineering Nanjing University of Science and Technology Nanjing,China,210094

会议名称：

China international conference on nanoscience and technology

会议地点：

Chengdu(CN)

会议母体文献：

The 6th China international conference on nanoscience and technology

页码：

1-14

出版时间：

2007