运用磁控溅射技术在浸渍-提拉法制得的TiO2薄膜上溅射三氧化钨层得到光催化薄膜.采用SEM、XRD、AES、UV-vis漫反射光谱等方法表征催化剂薄膜的厚度、晶相结构、化学元素组成及光吸收性能.以甲基橙的光催化降解为反应模型,高压汞灯为光源,溅射有三氧化钨薄膜的哪光催化活性低于纯TiO2薄膜;滤过紫外光后,溅射有三氧化钨的薄膜光催化活性明显高于纯TiO2薄膜.本实验提供了一种制备高可见光活性的TiO2薄膜的方法.
参考文献
| [1] | Sawunyama P.;Okada K.;Yasumori A. .The nature of multilayered TiO2-based photocatalytic films prepared by a sol-gel process[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,1998(5):795-801. |
| [2] | Kozhukharov V;Trapalis Ch;Samuneva B .Sol-gel Processing of Titanium-Containing thin coatings[J].Journal of Materials Science,1993,28:1283-1288. |
| [3] | Vinodgopal K;Kamat PV .Enhanced Rates of Photocatalytic Degredation of an Azo Dye Using SnO2/TiO2 Coupled Semiconductor Thin Film[J].Environmental Science and Technology,1995,29:841. |
| [4] | 朱永法,张利,姚文清,曹立礼.溶胶-凝胶法制备薄膜型TiO2光催化剂[J].催化学报,1999(03):362-364. |
| [5] | 森川健志;志贺孝 .光触媒物质ぉよび光触媒体[P].Japan:JP2001-205104 |
| [6] | Sabate J;Anderson M A;Kikkawa H et al.Properties of Nb-doped TiO2 thin film by Sol-gel method[J].Journal of Catalysis,1992,134:36. |
| [7] | Zheng S K;Wang T M;XIANG G .Photocatalytic Activity of Nanostructured TiO2 Thin Film Prepared by dc Magnetron Sputtering Method[J].真空,2001,62:361. |
| [8] | Jiaguo Yu;Xiujian Zhao .Effect of surface treatment on the photocatalytic activity and hydrophilic property of the sol-gel derived TiO_2[J].Materials Research Bulletin: An International Journal Reporting Research on Crystal Growth and Materials Preparation and Characterization,2001(1/2):97-107. |
| [9] | Yu Jiaguo;Zhao Xiujian;Zhao Qingnan .Effect of Surface Structure on the Photocatalytic Activity of TiO2 Thin Film Prepared by Sol-gel Method[J].Thin Solid Films,2000,379:7. |
| [10] | 孙奉玉;吴鸣;李文钊 .二氧化钛的尺寸与光催化活性的关系[J].催化学报,1998,19(03):229-233. |
| [11] | Toyoda T.;Shen Q.;Hayakawa T. .Photoacoustic, photoelectrochemical current, and photoluminescence spectra of highly porous, polycrystalline TiO2 electrodes fabricated by chemical synthesis[J].Materials Science & Engineering, B. Solid-State Materials for Advanced Technology,2000(2/3):84-89. |
| [12] | Oyoshi K.;Umezu I.;Souda R.;Yamazaki A.;Haneda H.;Mitsuhashi T.;Sumi N. .Structure, optical absorption and electronic states of Zn+ ion implanted and subsequently annealed sol-gel anatase TiO2 films[J].Nuclear Instruments and Methods in Physics Research, Section B. Beam Interactions with Materials and Atoms,2000(2):221-228. |
| [13] | Li X Z;Li F B;Yang C L et al.J Photocatalytic Activity of WOx-TiO2 under visible light irradiation[J].Photochemistry and Photobiology,2001,A141:209. |
| [14] | 李芳柏,李湘中,李新军,万洪富.金离子掺杂对二氧化钛光催化性能的影响[J].化学学报,2001(07):1072-1077. |
| [15] | Li F B;Li X.Z .Photocatalyst toward visible Photooxidation for water and wastewater treatment[J].Applied Catalysis A:General,2002,228:151. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%