二氧化鈦在太陽能電池、消毒殺菌、分解污染物、表面自潔等方面皆有廣泛應用，但其使用波長侷限在紫外光。在親水性實驗中，本實驗使用解離電壓40V之離子助鍍得到比沒有離子助鍍有效的二氧化鈦光觸媒，接觸角在照射紫外光五分鐘後達到十度以下。並在氮氣離子助鍍的實驗中，為了研究氮氣在二氧化鈦膜中之鍵結，我們以XPS量測N訊號，並且測到396eV之氮氣鍵結訊號;並以可見光照射光觸媒，照射一個小時後，接觸角降至20度，並在兩個小時後下降到10度以下。

TiO2 has diverse functional application in solar cell, sterilization, degradation of organic pollutants and self-cleaning, however, the photocatalytic activities of titanium dioxide can effectively work only under ultraviolet (UV) light irradiation. In the hydrophilicity experiment, we get better photocatalytic activities films in using ion assisted deposition under anode voltage 40V than without using ion assisted deposition, after the UV light treatment 5 minutes, the contact angle was less than 10 degree. Besides, in the N2 ion assisted deposition experiment, to investigate N state in TiO2-xNx, and found that, the XPS peak at 396eV of N binding signal is clear observed .After the visible light treatment for one hour, the contact angle was 20 degree, and after the visible light treatment for two hours, the contact angle was less than 10 degree.

[1]P. Amezaga-Madrid,R. Silveyra-Morales, L. Cordoba-Fierro, G. V. Nevarez-Moorillon, M. Miki-Yoshida, E. Orrantia-Borunda, F. J. Solis, Journal of Photochemistry and Photobiology B: Biology 70 45-50 (2003)
[2] A. M. Ruiz, G. Sakai, A. Cornet, K. Shimanoe, J. R. Morante, N.Yamazoe, Sensor and Actuator B 93 509-518 (2003)
[3] R. Asahi, T. Morikawa, T. Ohwaki, K. Aoki and Y .Taga, “Visible-Light Photocatalysis in Nitrogen-Doped Titanium Oxides,” Science.293, 269~271 (2001)
[4] T.S. Yang, M.C. Yang, C.B. Shu, W.K. Chang and M.S. Wong, “Effect of N2 ion flux on the photocatalysis of nitrogen doped titanium oxide films by electron beam evaporation ,”Applied Surface Science, 252 3729-3736 (2006)
[5] http://www.photocatalyst.co.jp
[6] S N Frank , A J Bard,” Heterogeneous photocatalytic oxidation of cyanide and sulfite in aqueous solutions at semiconductor powders”, J.Phys.Chem.,81,1484~1488 (1977)
[7] Y. Takata, S. Hidaka, M. Masuda and T. Ito, “Pool boiling on a superhydrophilic surface”, Int. J. Energy Res, 27,111~119 (2003)
[8] S. D. Mo, W. Y. Ching, Physical review B 51 23-32, (1995)
[9]A. Sclafani, J. H. Herrmann, “Comparison of the Photoelectronic and Photocatalytic Activities of Various Anatase and Rutile Forms of Titania in Pure Liquid Organic Phases and in Aqueous Solutions”, J. Phys. Chem., 100, 13655 (1996)
[10] A. Sclafani, L. Palmisano, M. Schiavello, ”Influence of the preparation methods of titanium dioxide on the photocatalytic degradation of phenol in aqueous dispersion”, J. Phys. Chem., 94, 829 (1990)
[11] T. Sumita, T. Yamaki, S. Yamamoto, A. Miyashita, Applied Surface Science 200 21-26 (2002)
[12]A. L. Linsebigler, G. Lu, and J. T. Yates, Jr., “Photocatalysis on TiO2 Surfaces: Principles, Mechanisms, and Selected Results”, Chem. Rev., 95, 735-758 (1995).
[13] A. Mills, S. L. Hunte, “An overview of semiconductor photocatalysis”, Journal of Photochemistry and Photobiology A: Chemistry, 108, 1-35 (1997).
[14] H.Fuji, M. Ohtaki, K. Eguchi , H. Arai . J.Master.Sci.Lett..1997,16,1086~1088
[15] M. A. Fox and M. T. Dulay, “Heterogeneous photocatalysis,” Chem. Rev.93, 341 (1993)
[16] T. Sasaki, N. Koshizaki and J. W. Yoon, “Preparation of Pt/TiO2 Nanocomposite thin films by pulsed laser deposition and their photoelectron chemical behaviors,” J. of Photochemistry and Photobiology A: Chemistry .145(1/2), 11-16 (2001)
[17]S. K. Zheng, T. M. Wang, W. C. Hao and R. Shen, “Improvement of photocatalytic activity of TiO2 thin film by Sn ion implantation,” Vacuum. 65(2), 155 (2002)
[18] S. Jin and F. Shiraishi, “Photocatalytic activities enhanced for decompositions of organic compounds over metal-photodepositing titanium dioxide,” J. Chem. Eng. 97 (2-3), 203-211 (2004)
[19] Y. R. Park and K. J. Kim, “Structural and optical properties of rutile and natase TiO2 thin films: Effects of Co doping,” Thin Solid Films 484, 34, (2005)
[20] A. R. Bally, E. N. Korobeinikova, P. E. Schmid, F. Levy and F. Bussy, “Structural and electrical properties of Fe-doped TiO2 thin films,” J. Phys. D: Appl. Phys. 31(10), 1149 (1998)
[21] T. Lindgren, J. M. Mwabora, E. Avendaño, J. Jonsson, A. Hoel, C. G. Granqvist, and S. E. Lindquist , “ Photoelectrochemical and Optical Properties of Nitrogen Doped Titanium Dioxide Films Prepared by Reactive DC Magnetron Sputtering,” J. Phys. Chem. B 107(24) ,5709-5716 (2003)
[22] I. Nakamura, N. Negishi, S. Kutsuna, T. Ihara, S. Sugihara and K. Takeuchi, “Role of oxygen vacancy in the plasma-treated TiO2 photocatalyst with visible light activity for NO removal,” J. Mol. Catal. A: Chem.161, 205 (2000)
[23] T. Ohno and M. Akiyoshi, “Preparation of S-doped TiO2 photocatalysts and their photocatalytic activities under visible light” Applied Catalysis A: General 265, 115–121 (2004)
[24] Q. Shi, D. Yang, Z. Jiang and J. Li, “Visible-light photocatalytic regeneration of NADH nano particles using P-doped TiO2,” Journal of Molecular Catalysis B: Enzymatic 43, 44-48 (2006)
[25] D. Luca, D. Mardare, C. M. Teodorescu and F. Iacomi, “Increasing surface hydrophilicity of titania thin films by doping,” Appl. Surf. Sci. 252, 6122–6126 (2006)
[26]R.A.Spurr, H.Myers , ”Quantitative Analysis of Anatase-Rutile Mixtures with an X-Ray Diffractometer ,”Anal.Chem.29,760–762(1957)
[27] 李正中 , “薄膜光學與鍍膜技術”, 第四版, 藝軒出版社 (2004)
[28] S. Z. Chen, P. Y. Zhang, D. M. Zhuang, W. P. Zhu, “ Investigation of nitrogen doped TiO2 photocatalytic films prepared by reactive magnetron sputtering,” Catalysis Communications 5, 677–680 (2004)