| 乙酰丙酮对PMMA负载锐钛矿型TiO2薄膜及其光催化性能影响 |
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| 引用本文： | 张志清,黄剑锋,曹丽云,吴建鹏. 乙酰丙酮对PMMA负载锐钛矿型TiO2薄膜及其光催化性能影响[J]. 人工晶体学报, 2011, 40(6): 1510-1516 |
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| 作者姓名： | 张志清 黄剑锋 曹丽云 吴建鹏 |
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| 作者单位： | 陕西科技大学教育部轻化工助剂与技术重点实验室,西安,710021 |
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| 基金项目： | 国家自然科学基金(50942047); 陕西省自然科学基金(2010JM6001); 陕西科技大学研究生创新基金资助项目 |
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| 摘 要： | 以钛酸丁酯作为钛源,水为溶剂,乙酰丙酮(AcAcH)为表面修饰剂,采用微波水热辅助溶胶-凝胶法制备了纳米晶二氧化钛水溶液,利用提拉镀膜法在聚合物聚甲基丙烯酸甲酯(PMMA)基板上沉积得到了透明TiO2纳米晶薄膜.通过X射线衍射(XRD)、红外光谱(FTIR)、透射电子显微镜(TEM)、原子力显微镜(AFM)和紫外-可见光吸收光谱(UV-Vis)等对TiO2纳米颗粒和薄膜的晶相组成、表面形貌及光学性能进行表征.同时通过紫外光光催化降解罗丹明B研究了TiO2薄膜的光催化性能.结果表明:通过引入乙酰丙酮,可以得到高度分散、晶相为锐钛矿型的TiO2水溶胶,在PMMA基板上沉积得到的薄膜表面平整、致密,具有良好的透光率,经过180 min紫外光照射,对罗丹明B的降解率达到90;以上.
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| 关 键 词： | TiO2薄膜 光催化 乙酰丙酮 聚甲基丙烯酸甲酯, |
Influence of Acetylacetone on Photocatalytic Properties of TiO_2 Thin Films Deposited on PMMA Substrates |
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| ZHANG Zhi-qing , HUANG Jian-feng , CAO Li-yun , WU Jian-peng. Influence of Acetylacetone on Photocatalytic Properties of TiO_2 Thin Films Deposited on PMMA Substrates[J]. Journal of Synthetic Crystals, 2011, 40(6): 1510-1516 |
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| Authors: | ZHANG Zhi-qing HUANG Jian-feng CAO Li-yun WU Jian-peng |
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| Affiliation: | ZHANG Zhi-qing,HUANG Jian-feng,CAO Li-yun,WU Jian-peng (Key Laboratory of Auxiliary Chemistry & Technology for Chemical Industry,Ministry of Education,Shaanxi University of Science & Technology,Xi'an 710021,China) |
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| Abstract: | The nanocrystalline TiO2 solution was prepared using a microwave hydrothermal process to treat precursor liquid which was obtained by control the hydrolysis of titanium-n-butoxide in the presence of excessive water and acetylacetone(AcAcH).Then nanocrystalline TiO2 thin films were deposited on polymethylmethacrylate(PMMA) substrates by dip-coating process from TiO2 colloidal solution.The phase composition of TiO2 nanoparticles,morphologies and optical properties of TiO2 thin films deposited on PMMA substrat... |
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| Keywords: | TiO2 thin films photocatalysis acetylacetone polymethylmethacrylate |
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