通过简单的水解-沉淀法制备了纳米TiO2,考察了反应条件对其粒径和晶型的影响.结果表明制备小粒径锐钛矿TiO2的有利条件为:倒加法;Ti(OBu)4与C2H3OH、H2O与C2H5OH和Ti(Obu)4与H2O的体积比分别为1/3、1/4和1/1;pH=7和400℃焙烧.沉积-沉淀法制备的Au/TiO2催化剂催化CO氧化结果表明,催化剂的活性受焙烧温度影响很大,200℃焙烧的催化剂具有最好的催化活性.
参考文献
| [1] | Yu Y;Wu H H;Zhu B L et al.Preparation,characterization and photocatalytic activities of F doped TiO2 nanotubes[J].Catalysis Letters,2008,121(1-2):165. |
| [2] | Huiqin An;Baolin Zhu;Junxia Li .Synthesis and Characterization of Thermally Stable Nanotubular TiO2 and Its Photocatalytic Activity[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2008(48):18772-18775. |
| [3] | Baolin Zhu;Kairong Li;Jian Zhou .The preparation of palladium-modified TiO2 nanofibers and their photocatalytic performance[J].Catalysis Communications,2008(14):2323-2326. |
| [4] | Baolin Zhu;Qi Guo;Shurong Wang .SYNTHESIS OF METAL-DOPED TiO_2 NANOTUBES AND THEIR CATALYTIC PERFORMANCE FOR LOW-TEMPERATURE CO OXIDATION[J].Reaction Kinetics & Catalysis Letters,2006(2):301-308. |
| [5] | Seyfi B;Baghalha M;Kazemian H et al.Modified LaCoO3nano-perovskite catalysts for the environmental application of automotive CO oxidation[J].Chemical Engineering Journal,2009,148(2-3):306. |
| [6] | Khedr M H;Abdel Halim K S;Nasr M I et al.Effect of temperature on the catalytic oxidation of CO over nano-sized iron oxide[J].Materials Science and Engineering A:Structural Materials Properties Microstructure and Processing,2006,430(1-2):40. |
| [7] | Su Y et al.Comparative study on catalytic performances for low-temperature CO oxidation of Cu-Ce-O and Cu-Co-Ce-O catalysts[J].Catalysis Letters,2008,124(3-4):405. |
| [8] | Jing Huang;Yanfei Kang;Liwei Wang .Mesoporous CuO/Ti_xZr_(1-x)O2 catalysts for low-temperature CO oxidation[J].Catalysis Communications,2011(1):41-45. |
| [9] | Margitfalvi J L;Fási A;Hegedüs M et al.Au/MgO catalysts modified with aseorbic acid for low temperature CO oxidation[J].Catalysis Today,2002,72(1-2):157. |
| [10] | Ma Z;Overbury SH;Dai S .Au/MxOy/TiO(2)catalysts for CO oxidation: Promotional effect of main-group, transition, and rare-earth metal oxide additives[J].Journal of molecular catalysis, A. Chemical,2007(1/2):186-197. |
| [11] | Camellone, MF;Fabris, S .Reaction Mechanisms for the CO Oxidation on Au/CeO2 Catalysts: Activity of Substitutional Au3+/Au+ Cations and Deactivation of Supported Au+ Adatoms[J].Journal of the American Chemical Society,2009(30):10473-10483. |
| [12] | Jinlong Zhang;Terukazu Ayusawa;Madoka Minagawa;Kensaku Kinugawa;Hiromi yamashita;Masaya Matsuoka;Masakazu Anpo .Investigations of TiO_2 Photocatalysts for the Decomposition of NO in the Flow System[J].Journal of Catalysis,2001(1):1-8. |
| [13] | Harald W et al.Electronic semiconductor-support interaction-A novel effect in semaconductor photocatalysis[J].Angewandte Chemie International Edition in English,2001,40(20):3825. |
| [14] | Wang S P;Zhang T Y et al.Synthesis,cha-racterization and catalytic activity of Au/Ceo.8 Zro.2 O2 catalysts for CO oxidation[J].Journal of Molecular Catalysis A:Chemical,2007,272(1-2):45. |
| [15] | Wang SR;Huang J;Zhao YQ;Wang SP;Wang XY;Zhang TY;Wu SH;Zhang SM;Huang WP .Preparation, characterization and catalytic behavior of SnO2 supported Au catalysts for low-temperature CO oxidation'[J].Journal of molecular catalysis, A. Chemical,2006(1/2):245-252. |
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