碩士 / 國立高雄應用科技大學 / 化學工程與材料工程系碩士在職專班 / 106 / In this study, the precursor solution was prepared by mixing with Urea、Titanium n-butoxide (Ti(OBu)4), magnetic powder in sodium alginate to synthesis nitrogen-doped TiO2 micro/nano-microsphere via template method.
Use the syringe to inject the precursor solution into the zinc nitrate hexahydrate solution and then collected the micro/nano-microspheres. The micro/nano-microspheres were calcined at 550℃ to remove the polymer parts.
The nitrogen-doped TiO2 micro/nano-microspheres were characterized by thermogravimetric analysis instrument, field emission scanning electron microscopy instrument, Specific Surface Area and porosity Analyzer, X-ray diffraction instrument, X-ray photoelectron spectroscopy and Ultraviolet-visible spectroscopy instrument.
The photocatalytic activities experiment of nitrogen-doped TiO2 micro/nano-microsphere samples under the 664nm of visible light were estimated by measuring the Photodegradation rate of methylene blue in aqueous solution.
The experimental results show that the nitrogen-doped titanium dioxide are anatase phase crystals with an energy gap value of 1.98~2.09 eV. In the photodegradation experimental of methylene blue. The Nitrogen-doped titanium di-oxide can reach 97 % degradation in 180 minutes, and the best photodegradation efficiency is the samples with nitrogen-doped concentration of 10% in this study.
| Identifer | oai:union.ndltd.org:TW/106KUAS1063019 |
| Date | January 2018 |
| Creators | TSAI, KUN-TING, 蔡昆庭 |
| Contributors | KAO, LI-HENG, 高立衡 |
| Source Sets | National Digital Library of Theses and Dissertations in Taiwan |
| Language | zh-TW |
| Detected Language | English |
| Type | 學位論文 ; thesis |
| Format | 78 |
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