利用过氧化的方法低温制备锐钛矿相TiO2溶胶水溶液,其制备过程由4个步骤组成:利用新制备的正钛酸沉淀得到过氧化钛溶液;利用氨水溶液沉淀过氧化钛得到过氧化钛水合物;利用阳离子交换树脂除去杂质NH4+;得到的溶液于100℃下密闭加热5h得到最终产物.XRD和FTIR结果表明,可以通过此法在低温下合成稳定的锐钛矿型TiO2溶胶水溶液,而且在制备过程中不会引入任何杂质.TiO2溶胶水溶液的光催化活性通过光催化降解丙酮来表征,结果表明其光催化表观反应速率常数相对P25大0.9×10-3min-1.
参考文献
| [1] | Fujishima A;Honda K .Electrochemical photolysis of water a semiconductor electrode[J].Nature,1972,238:37. |
| [2] | 刘平;付贤智;林华香.掺杂TiO2光催化膜材料的制备及其灭菌机理研究[A].,1998:98. |
| [3] | 彭晓春,陈新庚,黄鹄,李明光.n-TiO2光催化机理及其在环境保护中的应用研究进展[J].环境污染治理技术与设备,2002(03):1-6. |
| [4] | Duntriu D;Bally A R;Ballif C .Photocatalytic degradation of phenol by TiO2 thin films prepared by sputtering[J].Applied Catalysis B:Environmental,2000,25:83. |
| [5] | Watanabe T .Super-hydrophilic TiO2 photocatalyst and its application[J].Bulletin of the Ceramic Society of Japan,1996,31(10):837. |
| [6] | Tanake K.The effect of crystal from of TiO2 on the photocatalytic degration of polluants. In:The first international conference on TiO2 photocatalytic purification and treatment of water and air[M].London, Ontario, Canada,1992:8. |
| [7] | 邹志刚.光催化制氢和环境净化材料的现状和发展趋势[A].,2004:27. |
| [8] | 武正簧,周丽.TiO2 薄膜光催化降解甲基橙和亚甲基蓝[J].化学工程师,2002(01):1-3. |
| [9] | Gao Y;Chambers S A .MEB growth and characterization of TiO2and Nb-doped TiO2 films[J].Materials Letters,1996,26:217. |
| [10] | Wang S Q;Yu W B;Li T K et al.Study on the structure of TiO2 thin film by means of diffuse reflectance infrared fouried transforms pectroscopy[J].Spectroscopy Letters,1993,26(05):863. |
| [11] | Vaija P;Lahouidak J;Durand J et al.Application of methods of fuzzy mathematics to the determination of the micronmorphology of TiO2 CVD thin films[J].Journal of the European Ceramic Society,1993,11:551. |
| [12] | Ghanashyam K M;Narasimha R K;Mohan S .Properties of ion assisted deposited titanium films[J].Journal of Applied Physics,1993,73:434. |
| [13] | Cheng H M;Ma J M;Zhao Z et al.[J].Chemistry of Materials,1995,7:663. |
| [14] | Fujishima A;Rao T N;Tryk D A .[J].Journal of Photochemistry and Photobiology C:Photochemistry Reviews,2000,1:1. |
| [15] | Fernandez A;Lassaletta G;Jimenez V M et al.[J].Applied Catalysis B:Environmental,1995,7:49. |
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