采用溶胶-凝胶法制备了La掺杂的TiO2.通过X射线衍射分析、扫描电镜、紫外-可见光漫反射测试等手段对TiO2进行了结构和光吸收性能研究.结果表明La3+阻碍了锐钛矿向金红石转变,提高了晶形转变温度,La3+掺杂之后的TiO2粒径变小,La3+掺杂TiO2光吸收与煅烧温度有关.
参考文献
| [1] | Fujishima A;Honda K .Electrochemical phototysis of water at a semiconductor electrode[J].Nature,1972,37(01):238-245. |
| [2] | Maya Nair;Zhenghao Luo;Adam Heller .Rates of photocatalytic oxidation of crude oil on salt water on buoyant,cenosphere-attached titanium dioxide[J].Industrial and Engineering Chemistry Research,1993,32(10):2318-2323. |
| [3] | Kayano Sunada;Yoshihilo Kikuchi;Kazuhito Hashimoto;Akira Fujishima .Bactericidal and detoxification effects of TiO2 thin film photocatalysts[J].Environmental Science & Technology: ES&T,1998(5):726-728. |
| [4] | Tetsuro Noguchi;Akira Fujishima;Phillip Sawunyama;Kazuhito Hashimoto .Photocatalytic degradation of gaseous formaldehyde using TiO{sub}2 film[J].Environmental Science & Technology: ES&T,1998(23):3831-3833. |
| [5] | Jincai Zhao;Taixing Wu;Kaiqun Wu;Kyoko Oikawa;Hisao Hidaka;Nick Serpone .Photoassisted degradation of dye pollutants. 3. degradation of the cationic dye rhodamine B in aqueous anionic surfactant/TiO{sub}2 dispersions under visible light irradiation: evidence for the need of substrate adsorption on TiO{sub}2 particles[J].Environmental Science & Technology: ES&T,1998(16):2394-2400. |
| [6] | 卢维奇,王德清,王欢,周伟灶,李雪辉.钇掺杂TiO2介孔材料可见光催化降解甲基橙的研究[J].稀土,2008(05):36-39. |
| [7] | 刘鹏,李蓉萍,董海成,李忠贤.掺杂Y和Ce对纳米TiO2光学特性的影响[J].稀土,2008(05):50-52,84. |
| [8] | Wagner C D;Riggs W M.Handbook of XPS[M].Perkin-Elmer:Minneapolis,1979 |
| [9] | Jing LQ.;Sun XJ.;Shang J.;Cai WM.;Xu ZL. .The surface properties and photocatalytic activities of ZnO ultrafine particles[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(3/4):308-314. |
| [10] | Jun Lin;Jimmy C Yu .An investigation on photocatalytic activities of mixed TiO2-rare earth oxides for the oxidation of acetone in air[J].Journal of Photochemistry-and Photobiology A:Chemistry,1998,116(01):63-67. |
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