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田口方法TiO2中空球合成研究 预览 被引量:1

Synthesis of Hollow TiO2 Spheres by Taguchi Method
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摘要 利用田口方法中的L9表规划实验,探讨操作条件对TiO2中空球壳层厚度的影响.将阳离子型起始剂AIBA所合成的聚苯乙烯球[PS,粒径为(142.4±23.8)nm]作为模板搭配二氧化钛的前驱物异丙基醇钛(TTIP),以Sol-Gel法制备PS(core)/TiO2(shell)的核壳粒子.再以高温锻烧的方式,将核心PS球去除,可得到TiO2中空球.根据田口方法分析结果显示,TTIP的浓度是影响TiO2中空球壳层厚度的最重要因子,通过适当调整TTIP的浓度可以控制中空球的壳层厚度,至于中空球的粒径大小则可利用模板PS球的尺寸来调控. In the present study,Taguchi experimental design and the template method were adopted to synthesize hollow TiO2 spheres.Polystyrene(PS) with the size of(142.4±23.8) nm,prepared by emulsion-free polymerization with AIBA initiator,was used as the template.With PS nanoparticles and titanium tetraisopropoxide(TTIP) precursor,PS/TiO2 core-shell composite spheres were prepared by sol-gel method.After removing PS by calcination,hollow TiO2 spheres were obtained.With analysis by Taguchi method,it is found that the shell thickness of the hollow TiO2 spheres depended significantly on the concentration of TTIP precursor.A linear relationship was also confirmed.The size of hollow TiO2 spheres can be controlled by the size of PS template.
作者 詹志洁 张忠杰 许文嘉 朱慧娟 Chih-Chieh Chan  Chung-Chieh Chang  Wen-Jia Shiu  Hui-Jiuan Ju 
出处 《过程工程学报》 CAS CSCD 北大核心 2006年第z2期 302-305,共4页 Chinese Journal of Process Engineering
关键词 二氧化钛 中空球 核壳粒子 田口方法 TiO2 hollow sphere core-shell composite sphere Taguchi method
作者简介 詹志洁(1953-),男,台湾省新竹市人,博士,教授,主要从事光触媒、纳米材料方面的研究,E-mail:ccchan@fcu.edu.tw.
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