| 王亚淼,徐萌川,杨毅,焦岩,刘颖,颜学武.可见光响应Pr3+:Y2SiO5/ TiO2薄膜的制备[J].装备环境工程,2016,13(6):1-4. 王亚淼,徐萌川,杨毅,焦岩,刘颖,颜学武.The Preparation of the Visible Light Response Pr3 :Y2SiO5 / TiO2 Composite Film[J].Equipment Environmental Engineering,2016,13(6):1-4. |
| 可见光响应Pr3+:Y2SiO5/ TiO2薄膜的制备 |
| The Preparation of the Visible Light Response Pr3 :Y2SiO5 / TiO2 Composite Film |
| 投稿时间：2016-09-14 修订日期：2016-11-04 |
| DOI：10.7643/ issn.1672-9242.2016.06.001 |
| 中文关键词: Pr3+:Y2SiO5/ TiO2 复合薄膜 溶胶-凝胶 可见光催化 亚甲基蓝降解 |
| 英文关键词:Pr3 :Y2SiO5/TiO2 composite film sol-gel visible light catalytic degradation of methylene blue |
| 基金项目:国家自然科学基金（11205089）；中央高校基本科研业务费专项资金（30915011309）；江苏省产学研联合创新资金（BY2016004-02） |
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| 中文摘要: |
| 目的：研究层涂法制备Pr3+:Y2SiO5/ TiO2复合薄膜的结构与可见光催化性能。方法分别以钛酸丁酯(TBOT)和正硅酸乙酯(TEOS)为前驱体,通过溶胶-凝胶法制得TiO2凝胶和Pr掺杂的Y2SiO5凝胶,以碳纤维为薄膜载体并通过浸渍提拉法制备了Pr3+:Y2SiO5/ TiO2层涂薄膜,研究了层涂法制备复合薄膜对复合薄膜结构、形貌以及光催化效果的影响。结果表明通过SEM可知复合薄膜具有明显的分层界限,形貌较平整,有较少龟裂；复合薄膜性能受涂覆次序的影响较大。结论依次将Pr3+:Y2SiO5和TiO2涂覆在碳纤维上的复合薄膜具有较好的光催化性能,可见光光照两小时,对亚甲基蓝的脱色率达到94%,其可见光催化效率高于TiO2薄膜的59%。 |
| 英文摘要: |
| Objective To study the coating layer of Pr3 :Y2SiO5 / TiO2 composite membrane structure and visible light catalytic properties. Methods The Pr3 :Y2SiO5 / TiO2 layer of coating film was prepared by dip-coating method with carbon fiber as the film carrier respectively by butyl titanate (TBOT) and ethyl orthosilicate (TEOS) as precursor to made the Pr doping Y2SiO5 gel and TiO2 gel by sol-gel method. The influences of the composite membrane prepared by layer coating on the composite membrane structure, morphology and photocatalytic properties were studied. Results show that through SEM, composite film has obvious stratification, topography is smooth, and there is less reunion; the performance of Composite film is strongly influenced by coating the order. Conclusion The composite membrane of in turn coating Pr3 :Y2SiO5 and TiO2 have good photocatalytic properties. With visible light lighting two hours, the rate of methylene blue decolorization can reach 94%; its visible light catalytic efficiency is higher than 59% of TiO2 thin film. |
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