以工业级偏钛酸、醋酸锌和尿素为原料,采用一步均匀沉淀法,在600℃、2h条件下,成功制备出ZnO-TiO2纳米复合材料.采用X射线衍射仪(XRD)、透射电镜(TEM)和X射线光电子能谱(XPS)测试手段对反应产物进行了分析.实验结果表明,400℃时,只有锐钛型TiO2的衍射峰;500℃时,开始出现ZnO的衍射峰;600℃以上,开始出现金红石型TiO2和ZnTiO3的衍射峰,并且随着煅烧温度的升高,衍射峰强度逐渐增强.600℃制备的复合粉体结晶完整,无明显团聚现象,颗粒呈球形或类球形,平均粒径在20nm左右.复合粉体表面主要由Zn、Ti、O和C 4种元素组成,Zn和Ti元素主要以ZnO、TiO2和ZnTiO3形式存在.在室内自然光条件下,ZnO-TiO2纳米复合材料可以在一定程度上降解甲基橙.
参考文献
| [1] | Ludovic L;Stephan B;Dominique W et al.[J].Applied Catalysis B:Environmental,2005,61(3-4):227-235. |
| [2] | Aungpradit T;Sutthivaiyakit P;Martens D et al.[J].Journal of Hazardous Materials,2007,146(1-2):204-213. |
| [3] | 任典君,王荣昌,夏四清.微波辅助液相沉积法制备TiO2薄膜光催化性能[J].稀有金属材料与工程,2008(06):989-994. |
| [4] | Michael R. Hoffmann;Scot T. Martin;Wonyong Choi;Detlef W. Bahnemann .Environmental Applications of Semiconductor Photocatalysis[J].Chemical Reviews,1995(1):69-96. |
| [5] | Xiaobo Chen;Samuel S. Mao .Titanium Dioxide Nanomaterials: Synthesis, Properties, Modifications, and Applications[J].Chemical Reviews,2007(7):2891-2959. |
| [6] | Ollis D F .[J].Science Technology,1985,19(06):480-484. |
| [7] | Gratzel M .[J].Nature,2001,414:338-344. |
| [8] | An-Wu Xu;Yuan Gao;Han-Qin Liu .The preparation, characterization, and their photocatalytic activities of rare-earth-doped TiO_2 nanoparticles[J].Journal of Catalysis,2002(2):151-157. |
| [9] | Zhang L D;Mo C M .[J].Nanostructured Materials,1995,6(5-8):831-834. |
| [10] | 侯廷红,毛健,杨玲,张小丽,涂铭旌.稀土离子掺杂纳米TiO2的谱学特性研究[J].四川大学学报(工程科学版),2006(05):117-121. |
| [11] | Ohshima K;Tsuto K;Okuyama K et al.[J].Aerospace Science and Technology,1993,19(04):468-477. |
| [12] | Marcì G;Augugliaro V;López-Munoz M J et al.[J].Journal of Physical Chemistry B,2001,105(05):1026-1032. |
| [13] | 林元华;袁方利;黄淑兰 等.[J].功能材料,1999,30(05):507-508. |
| [14] | 廖莉玲,刘吉平.纳米级ZnO-TiO2复合粉体的制备及其性能研究[J].黔南民族师范学院学报,2002(03):1-3,40. |
| [15] | 金名惠,张家新.纳米ZnO/TiO2复合颗粒制备及紫外屏蔽性能研究[J].华中科技大学学报（自然科学版）,2005(02):119-121. |
| [16] | 赵旭,杨少凤,赵敬哲,刘艳华,徐慧芳,王子忱.氧化锌包覆超细二氧化钛的制备及其紫外屏蔽性能[J].高等学校化学学报,2000(11):1617-1620. |
| [17] | Liu Zhongchi;Zhou Dongxiang;Gong Shuping et al.[J].Journal of Alloys and Compounds,2009,475(1-2):840-845. |
| [18] | Klug H;Alexander L E.X-ray Diffraction Procedures[M].New York:John Wiley and Sons,Inc,1974:618-708. |
| [19] | Pineda M;Fierro J L G;Palacios J M et al.[J].Applied Surface Science,1997,119(1-2):1-10. |
| [20] | Chien-Tsung Wang;Jen-Chieh Lin .Surface Nature Of Nanoparticle Zinc-titanium Oxide Aerogel Catalysts[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2008(15):4500-4507. |
| [21] | 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. |
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