本研究利用微波輔助水熱法在短時間內製備二氧化鈦奈米柱及添加奈米碳管與二氧化鈦奈米柱之複合光觸媒，並以Multi-Function Scanning Electron Microscope（SEM）、Transmission Electron Microsopy（TEM）、X-ray Powder Diffractometer（XRD）、BET surface area、Diffuse Reflectance UV-visible Spectrophotometer（UV-Vis spectrophotometer）、X-ray Photoelectron Spectroscopy（XPS）、X-ray Absorption Spectroscope（XAS）等方法分析TiO2及複合光觸媒之物化特性，並選用亞甲基藍溶液作為污染物，進行觸媒光催化降解試驗。 由SEM及TEM可觀察到，奈米柱柱長可達300 nm，為實心之結構，柱徑約為30 nm，且TiO2分散均勻披覆在碳管上，藉由XPS證實Ti與C存在化學鍵結；XRD及XAS證實二氧化鈦奈米柱同時存在銳鈦礦晶相（Anatase）與金紅石晶相（Rutile），而複合光觸媒為金紅石晶相（Rutile）；BET量測比表面積約為53?197 m2/g；二氧化鈦奈米柱在UV-Vis圖譜上的吸收位置會偏向較長波長區域（紅移現象），且隨著碳管添加的量越多，在可見光區域的吸收值越高；在經過3小時的紫外光照光時間下，添加C/Ti=1/1 mole ratio的碳管，具有最佳的亞甲基藍分解效率（100 ％），比未添加碳管之TiO2分解效率佳。 In the present study, a microwave-assisted hydrothermal method was used to prepare titanium nonorods (TNRs) and TNR/multi-wall carbon nanotube （TNR/MWCNT） photocatalysts in relatively short time. The composites were characterized by Multi-Function Scanning Electron Microscope （SEM）、Transmission Electron Microsopy（TEM）、X-ray Powder Diffractometer（XRD）、BET surface area、Diffuse Reflectance UV-visible Spectrophotometer（UV-Vis spectrophotometer）、X-ray Photoelectron Spectroscopy（XPS）、X-ray Absorption Spectroscope（XAS）and their photocatalytic activities were tested by photo degradation of methyl blue in water. SEM and TEM micrographs indicated that TNRs had a length of approximately 300 nm with a diameter of about 30 nm and were non-hollowed. XPS spectra strongly indicated the existence of Ti－C bond; TNRs exited in anatase and rutile forms as shown by the results from both XRD and XAS. The BET surface area of the TNRs were 53~ 197 m2/g. TNRs showed a red-shift in UV-Vis absorption that increased with greater MWCNT addition.Under UV light illumination for 3 hours, the greatest photocatalytic activity was observed for the composite catalyst with C/Ti mole ratio of 1：1.
