| Summary: | 碩士 === 國立高雄海洋科技大學 === 微電子工程研究所 === 103 === In this study, titanium dioxide (TiO2) photocatalyst powder was prepared by sol-gel method .Titaniumisopropoxide mixed with deionized water DI was used to precursor for titaniumisopropoxidesynthesization. After synthesization Tio2was centrifugallyseparated and DI water washing. The route of separation and washing was repeatedseveral time. The as synthesized powder was dried at 80℃ in an oven. The as dried TiO2powder was treated with post sinteredat 300~900℃ in air.
From XRD analysis , the crystallineof TiO2powder were better with sintering temperature .The structure of TiO2samples sintered at 500~600℃change from anatase into rutile phase. The crystalline of TiO2was more obvious by sol-gel method at 80℃as compared to that synthesized at room temperature .
The as prepared TiO2 powder was added to polyvinyl alcohol (PVA) and deionized water for Electrostatic spinning nanowire. The as electrostatic spinning TiO2nanowire were applied for degradation measurement. From the study, it helpus explore and understand the key functions of different phases ofTiO2applied for photocatalystic degradation and the preparing process of nanowire films.
Keywords:Sol-gel ,TiO2, photocatalyst, electrospinning
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