采用低温方法制备了金红石含量可调TiO2多孔薄膜,并用X射线衍射仪(XRD)、BET比表面积测量仪和透射电镜(TEM)对其进行了表征.以甲基橙(MO)为光催化反应的模型化合物,研究了TiO2多孔薄膜的光催化活性以及重复使用效果.结果表明:随金红石含量增加,TiO2薄膜的紫外光催化活性减小,而可见光催化活性增加；在金红石含量相近的条件下,水热合成TiO2薄膜的紫外和可见光催化活性均高于机械混合TiO2薄膜；TiO2薄膜的光催化重复使用性能良好.当其它实验条件相同时改变MO溶液的初始pH值,其最大降解效率发生在pH=3.00时.光电共同催化效果优于光催化.
参考文献
| [1] | Chen S F;Zhao W;Liu W et al.Preparation,characterization and activity evaluation of p-n junction photocatalyst p-ZnO/n-TiO2[J].Applied Surface Science,2008,255(05):2478. |
| [2] | 燕宁宁,张莹,吴晶,柳清菊.稀土离子掺杂改性TiO2光催化剂[J].材料导报,2011(17):72-74,78. |
| [3] | Li YZ;Kim SJ .Synthesis and characterization of nano titania particles embedded in mesoporous silica with both high photocatalytic activity and adsorption capability[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2005(25):12309-12315. |
| [4] | 周凝;薛建军;王玲 et al.Potoelectrocatalytic degradation of methyl orange in aqueous solution over TiO2 nanotubes array(TiO2纳米管阵列薄膜光电催化降解甲基橙染料废水)[J].材料导报:研究篇,2011,25(08):75. |
| [5] | Fan K;Liu M;Peng T Y et al.Effects of paste components on the properties of screen-printed porous TiO2 film for dye-sensitized solar cells[J].Renewable Energy,2010,35(02):555. |
| [6] | Paul G. Hoertz;Anna Goldstein;Carrie Donley .Using the Voids. Evidence for an Antenna Effect in Dye-Sensitized Mesoporous TiO2 Thin Films[J].The journal of physical chemistry, B. Condensed matter, materials, surfaces, interfaces & biophysical,2010(45):14772-14777. |
| [7] | QUUN ZHANG;CHENGHUA SUN;YONG ZHAO .Low Ag-Doped Titanium Dioxide Nanosheet Films with Outstanding Antimicrobial Property[J].Environmental Science & Technology: ES&T,2010(21):8270-8275. |
| [8] | Jiaguo Yu;Gaopeng Dai;Bei Cheng .Effect of Crystallization Methods on Morphology and Photocatalytic Activity of Anodized TiO2 Nanotube Array Films[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2010(45):19378-19385. |
| [9] | Zhuang, Jiandong;Dai, Wenxin;Tian, Qinfen;Li, Zhaohui;Xie, Liyan;Wang, Jixin;Liu, Ping;Shi, Xicheng;Wang, Donghui .Photocatalytic Degradation of RhB over TiO_2 Bilayer Films: Effect of Defects and Their Location[J].Langmuir: The ACS Journal of Surfaces and Colloids,2010(12):9686-9694. |
| [10] | F. Gamez;A. Plaza-Reyes;P. Hurtado .Nanoparticle TiO2 Films Prepared by Pulsed Laser Deposition: Laser Desorption and Cationization of Model Adsorbates[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2010(41):17409-17415. |
| [11] | Hyun Ju Lee;Min Hyuk Park;Yo-Sep Min .Unusual Growth Behavior of Atomic Layer Deposited PbTiO3 Thin Films Using Water and Ozone As Oxygen Sources and Their Combination[J].The journal of physical chemistry, C. Nanomaterials and interfaces,2010(29):12736-12741. |
| [12] | Wark, M;Tschirch, J;Bartels, O;Bahnemann, D;Rathousky, J .Photocatalytic activity of hydrophobized mesoporous thin films of TiO2[J].Microporous and Mesoporous Materials,2005(1/3):247-253. |
| [13] | Yanmin Chen;Feng Chen;Jinlong Zhang .Effect Of Surface Fluorination On The Photocatalytic And Photo-induced Hydrophilic Properties Of Porous Tio_2 Films[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2009(12):6290-6296. |
| [14] | Xiaoting Hong;Zhengpeng Wang;Weimin Cai;Feng Lu;Jun Zhang;Yanzhu Yang;Na Ma;Yingjun Liu .Visible-Light-Activated Nanoparticle Photocatalyst of Iodine-Doped Titanium Dioxide[J].Chemistry of Materials,2005(6):1548-1552. |
| [15] | 崔玉民;张文保;苗慧 et al.Study on the photocatalytic degradation of bromphenol blue with Y2O3/WO3 (Y2O3/WO3光催化降解溴酚蓝染料的研究)[J].材料导报:研究篇,2010,24(07):52. |
| [16] | Wei T Y;Wan C C .Heterogeneous photocatalytic oxidation of phenol with titanium dioxide powders[J].Industrial and Engineering Chemistry,1991,30(06):1293. |
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