二硼化鈦在硫酸水溶液中經水熱反應可合成出硫摻雜的二氧化鈦，經由X光粉末繞射，漫反射吸收光譜，穿透式電子顯微鏡，掃描式電子顯微鏡，表面積與孔洞吸附分析，化學分析電子譜和螢光光譜的鑑定，我們所合成的硫摻雜的二氧化鈦為銳鈦礦相二氧化鈦，在穿透式顯微鏡觀察下，硫摻雜的二氧化鈦暴露出{001}面與{101}面或是暴露出{001}面、{101}面與{010}面兩種類型，相較於Deggusa P25有較寬的吸收範圍，且在可見光區有較高的吸收強度，因此在可見光催化降解亞甲藍有很好的表現。將硫摻雜的二氧化鈦經過高溫鍛燒後，化學分析電子顯示硫負二價的成分會消失，降解亞甲藍的效果也跟著下降。

S-doped TiO2 has been prepared by hydrothermal reaction of titanium boride in sulfuric acid which acts as an oxidant and as a source of sulfur. The S-doped TiO2 was characterized by X-ray diffraction (XRD), diffuse reflection spectrum, transmission electron microscope (TEM), scanning electron microscope (SEM), N2 adsorption-desorption analysis, X-ray photoelectron spectroscopy (XPS), and fluorescence spectrometry. The photocatalytic activity was measured by degradation of methylene blue (MB) under visible light irradiation at 500 nm. To realize the recombination of electrons/holes in the photocatalysts, the photoluminescence (PL) emission spectra were measured. The results show that the S-doped TiO2 partucles are anatase form, exposing both {001}, {101} facets or {001}, {101}, {100} facets. This S-doped TiO2 increases absorption in the visible light region, with a higher photocatalytic activity than that of Degussa P25.

1. Fujishima, A., Electrochemical photolysis of water at a semiconductor electrode. Nature 1972, 238, 37-38.
2. Lin, J. L., Adsorption and Reactions of Dimethylsulfoxide on Powdered TiO2. Jornal of Chinese Chemistry Society 2002, 60, 457.
3. 高濂, 鄭珊, 張清紅, 奈米光觸媒. 五南圖書: 台北市, 2004; p 60-157.
4. Kittel, C., 固態物理學導論. 高立圖書: 新北市, 2009.
5. Burdett, J. K.; Hughbanks, T.; Miller, G. J.; Richardson Jr, J. W.; Smith, J. V., Structural-electronic relationships in inorganic solids: powder neutron diffraction studies of the rutile and anatase polymorphs of titanium dioxide at 15 and 295 K. J. Am. Chem. Soc. 1987, 109 (12), 3639-3646.
6. Augustynski, J., The role of the surface intermediates in the photoelectrochemical behaviour of anatase and rutile TiO2. Electrochim. Acta 1993, 38 (1), 43-46.
7. http://ruby.colorado.edu/~smyth/min/tio2.html.
8. http://www.geocities.jp/ohba_lab_ob_page/structure6.html.
9. 江元生, 結構化學. 五南圖書: 台北市, 1999.
10. 李積琛, 固態化學課程講義. 國立交通大學: 台灣, 2006.
11. Cao, L.; Spiess, F.-J.; Huang, A.; Suib, S. L.; Obee, T. N.; Hay, S. O.; Freihaut, J. D., Heterogeneous photocatalytic oxidation of 1-butene on SnO2 and TiO2 films. The Journal of Physical Chemistry B 1999, 103 (15), 2912-2917.
12. Atkins, P. W., In Physical Chemistry, Oxford University: 1994.
13. Gu, Y.; Qian, Y.; Chen, L.; Zhou, F., A mild solvothermal route to nanocrystalline titanium diboride. J. Alloys Compd. 2003, 352 (1), 325-327.
14. http://en.wikipedia.org/wiki/Titanium_diboride.
15. Loyalka, S.; Riggs, C., Inverse problem in diffuse reflectance spectroscopy: Accuracy of the Kubelka-Munk equations. Appl. Spectrosc. 1995, 49 (8), 1107-1110.
16. Diebold, U., The surface science of titanium dioxide. Surf. Sci. Rep. 2003, 48 (5), 53-229.
17. Zhao, X.; Jin, W.; Cai, J.; Ye, J.; Li, Z.; Ma, Y.; Xie, J.; Qi, L., Shape- and Size-Controlled Synthesis of Uniform Anatase TiO2 Nanocuboids Enclosed by Active {100} and {001} Facets. Adv. Funct. Mater. 2011, 21 (18), 3554-3563.
18. Yang, H. G.; Sun, C. H.; Qiao, S. Z.; Zou, J.; Liu, G.; Smith, S. C.; Cheng, H. M.; Lu, G. Q., Anatase TiO2 single crystals with a large percentage of reactive facets. Nature 2008, 453 (7195), 638-41.
19. Li, J.; Xu, D., Tetragonal faceted-nanorods of anatase TiO2 single crystals with a large percentage of active {100} facets. Chem Commun (Camb) 2010, 46 (13), 2301-3.
20. John F. Moulder, W. F. S., Peter E. Sobol, Kenneth D. Bomben, Handbook of X-ray Photoelectron Spectroscopy. Physical Electronics, inc.: U.S.A., 1992.
21. SCOFIELD, J. H., HARTREE-SLATER SUBSHELL PHOTOIONIZATION CROSS-SECTIONS AT 1254 AND 1487 eV. J. Electron. Spectrosc. Relat. Phenom. 1976, 8, 129.
22. Hoffmann, A. A.; Dias, S. L.; Rodrigues, J. R.; Pavan, F. A.; Benvenutti, E. V.; Lima, E. C., Methylene blue immobilized on cellulose acetate with titanium dioxide: an application as sensor for ascorbic acid. Journal of the Brazilian Chemical Society 2008, 19 (5), 943-949.
23. Yan, J.; Wu, G.; Guan, N.; Li, L.; Li, Z.; Cao, X., Understanding the effect of surface/bulk defects on the photocatalytic activity of TiO2: anatase versus rutile. Phys. Chem. Chem. Phys. 2013, 15 (26), 10978-88.