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以聚合物凝胶为模板,硫酸氧钛为钛源,合成了多孔硫、氮共掺杂TiO2可见光光催化剂.利用XRD、FE-SEM、TEM、UV-vis和XPS等方法对样品的结构、形貌、可见光吸收及掺杂元素的化学形态进行了表征.结果表明掺杂TiO2为锐钛矿相结构,其网状骨架是由介孔和大孔组成,组成大孔的壁厚在100~300 nm之间,大孔的孔径约为300 nm,有少量的Ti-S、Ti-O-S、O-Ti-N键存在于样品中.连续降解废水中亚甲基蓝溶液结果表明:该方法合成的多孔、自支持的硫、氮共掺杂TiO2可见光光催化剂,具有高效耐久的特性.

参考文献

[1] 殷春浩,朱姗姗,张永伟,李富强,赵强,刘海顺.掺杂铁系元素对TiO2电子结构和光催化性能的影响[J].人工晶体学报,2011(03):662-667.
[2] 陈俊,严非男,梁丽萍,刘廷禹,耿滔.Cr掺杂锐钛矿相TiO2光学性质的第一性原理研究[J].人工晶体学报,2011(03):758-762.
[3] 陈桂华,梁华定,葛昌华,韩德满,王芳,杨辉.钒掺杂纳米二氧化钛的制备及光催化活性研究[J].人工晶体学报,2010(05):1243-1248,1260.
[4] 曹广秀,李耀刚,张青红,王宏志.氟、硼共掺杂对纳米TiO_2能带结构与可见光光催化性能的影响[J].硅酸盐通报,2010(01):198-203.
[5] 王丹军,郭莉,李东升,付峰,张理平,高利峰.铁铈共掺TiO_2/复合白土光催化剂的合成及工业废水处理活性[J].硅酸盐通报,2010(01):58-65.
[6] 陈淑敏,曹广连,曹广秀.自燃烧法合成氮、铁共掺杂TiO2及其可见光光催化活性[J].硅酸盐通报,2011(03):694-698.
[7] Li, D;Haneda, H;Hishita, S;Ohashi, N .Visible-light-driven N-F-codoped TiO2 photocatalysts. 1. Synthesis by spray pyrolysis and surface characterization[J].Chemistry of Materials,2005(10):2588-2595.
[8] Xie Y;Zhao X J .The effects of synthesis temperature on the structure and visible-light-induced catalytic activity of F-N-codoped and S-N-eodoped titania[J].Journal of Molecular Catalysis A:Chemical,2008,285:142-149.
[9] Suil In;Alexander Orlov;Regina Berg .Effective Visible Light-Activated B-Doped and B,N-Codoped TiO2 Photocatalysts[J].Journal of the American Chemical Society,2007(45):13790-13791.
[10] T. Umebayashi;T. Yamaki;H. Itoh;K. Asai .Band gap narrowing of titanium dioxide by sulfur doping[J].Applied physics letters,2002(3):454-456.
[11] Teruhisa Ohno;Miyako Akiyoshi;Tsutomu Umebayashi;Keisuke Asai;Takahiro Mitsui;Michio Matsumura .Preparation of S-doped TiO_2 photocatalysts and their photocatalytic activities under visible light[J].Applied Catalysis, A. General: An International Journal Devoted to Catalytic Science and Its Applications,2004(1):115-121.
[12] Li HX;Zhang XY;Huo YN;Zhu J .Supercritical preparation of a highly active S-doped TiO2 photocatalyst for methylene blue mineralization[J].Environmental Science & Technology: ES&T,2007(12):4410-4414.
[13] Ioannis M. Arabatzis;Polycarpos Falaras .Synthesis of Porous Nanocrystalline TiO_2 Foam[J].Nano letters,2003(2):249-251.
[14] Lizhi Zhang;Jimmy C. Yu .A sonochemical approach to hierarchical porous titania spheres with enhanced photocatalytic activity[J].Chemical communications,2003(16):2078-2079.
[15] Yong Zhao;Xintong Zhang;Jin Zhai .Enhanced photocatalytic activity of hierarchically micro-/nano-porous TiO2 films[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2008(1/2):24-29.
[16] Gu DE;Lu Y;Yang BC;Hu YD .Facile preparation of micro-mesoporous carbon-doped TiO2 photocatalysts with anatase crystalline walls under template-free condition[J].Chemical communications,2008(21):2453-2455.
[17] Choi H;Sofranko A C;Dionysiou D D .Nsnocrystalline TiO2 photocatalytic membranes with a hierarchical mesoporous multilayer structure:sythesis,characterization,and multifunction[J].Advanced Functional Materials,2006,16:1067-1074.
[18] Yamamoto A;Imai H .Preparation of titania foams having an open cellular structure and their application to photocatalysis[J].Journal of Catalysis,2004(2):462-465.
[19] Ren TZ.;Yuan ZY.;Su BL. .Surfactant-assisted preparation of hollow microspheres of mesoporous TiO2[J].Chemical Physics Letters,2003(1/2):170-175.
[20] Sing K S W;Everett D H;Haul R A W et al.Reporting physisorption data for gas/solid systems with special reference to the determination of surface area and porosity[J].Pure and Applied Chemistry,1985,57:603-619.
[21] Ho WK;Yu JC;Lee SC .Low-temperature hydrothermal synthesis of S-doped TiO2 with visible light photocatalytic activity[J].International Journal of Quantum Chemistry,2006(4):1171-1176.
[22] Xu JH;Li JX;Dai WL;Cao Y;Li HX;Fan KN .Simple fabrication of twist-like helix N,S-codoped titania photocatalyst with visible-light response[J].Applied Catalysis, B. Environmental: An International Journal Devoted to Catalytic Science and Its Applications,2008(1):72-80.
[23] Dong F;Zhao W R;Wu Z B .Characterization and photocatalytic activities of C,N and S co-doped TiO2 with ID nanostructure prepared by the nano-confinement effect[J].Nanotechnology,2008,19:365607-365616.
[24] Yu JC;Ho WK;Yu JG;Yip H;Wong PK;Zhao JC .Efficient visible-light-induced photocatalytic disinfection on sulfur-doped nanocrystalline titania[J].Environmental Science & Technology: ES&T,2005(4):1175-1179.
[25] Matsushima S;Takehara K;Yamane H;Yamada K;Nakamura H;Arai M;Kobayashi K .First-principles energy band calculation for undoped and S-doped TiO2 with anatase structure[J].The journal of physics and chemistry of solids,2007(2):206-210.
[26] Saha N C;Tompkins H G .Titanium nitride oxidatiou chemistry:an X-ray photoelectron spectroscopy study[J].Applied Physics,1992,72:3072-3079.
[27] Chen X B;Burda C .Photoelectron spectroscopic investigation of nitrogen-doped titania nanopartieles[J].Journal of Physical Chemistry B,2004,108:15446-15449.
[28] M.Sathish;B.Viswanathan;R.P.Viswanath;Chinnakonda S.Gopinath .Synthesis,Characterization,Electronic Structure,and Photocatalytic Activity of Nitrogen-Doped TiO_2 Nanocatalyst[J].Chemistry of Materials,2005(25):6349-6353.
[29] Irie H;Watanabe Y;Hashmoto K .Nitrogeu-concentration dependence on photocatalytic activity of TiO2-x Nx powders[J].Journal of Physical Chemistry B,2003,107:5483-5486.
[30] Xuefeng Song;Lian Gao .Synthesis, Characterization, and Optical Properties of Well-Defined N-Doped, Hollow Silica/Titania Hybrid Microspheres[J].Langmuir: The ACS Journal of Surfaces and Colloids,2007(23):11850-11856.
[31] Serpone N .Is the band gap of pristine TiO2 narrowed by anion-and cation-doping of titanium dioxide in second-generation photocatalysts[J].Journal of Physical Chemistry B,2006,110:24287-24293.
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