Preparation of uniform rhodamine B-doped SiO2/TiO2 composite microspheres
作者： Fuyong Yang , Ying Chu , Lei Huo , Yang Yang , Yang Liu
DOI: 10.1016/J.JSSC.2005.11.006
关键词: Composite number 、 Photocatalysis 、 Particle-size distribution 、 Mineralogy 、 Rhodamine B 、 Materials science 、 X-ray crystallography 、 Crystallization 、 Scanning electron microscope 、 Powder diffraction 、 Chemical engineering
摘要: Abstract Uniform rhodamine B (RB)-doped SiO 2 /TiO composite microspheres with catalytic and fluorescent properties were prepared by an easy economical method in this paper. The built up well-dispersed silica particles as the cores, RB both doped agent stabilizer, TiO shells obtained through hydrolysis of TiCl 4 water bath. morphology structure characterized scanning electron microscopy (SEM) X-ray powder diffraction (XRD). characterization results indicate that are all spherical shape have a narrow size distribution. calcined above 500 °C reveal clear crystalline reflection peaks rutile which exhibits well property. photocatalytic experiment was carried out order to examine property microspheres. also investigated. Dye-leakage test indicates molecules entrapped stable inside particles.
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