| Al2O3-TiO2复合膜的制备及表征 |
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| 引用本文： | 同帜,陈方方,李大川,雷弢.Al2O3-TiO2复合膜的制备及表征[J].纺织高校基础科学学报,2011,24(1):146-149. |
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| 作者姓名： | 同帜 陈方方 李大川 雷弢 |
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| 作者单位： | 西安工程大学环境与化学工程学院;陕西省现代建筑设计研究院; |
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| 基金项目： | 陕西省科技厅工业攻关项目(2009K06-27); 西安工程大学研究生创新基金(chx100810) |
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| 摘 要： | 采用TG-DTG、FI-IR和AFM等测试手段研究复合膜的热稳定性、化学组成及其表面微观形貌,以异丙醇铝和钛酸丁酯为前躯体,选择溶胶凝胶法制备A l2O3-TiO2复合膜.结果表明,温度为60℃,相对湿度保持70%可得到完整性较好的凝胶膜;复合膜的热稳定性好,500℃以后没有明显的质量损失;复合凝胶中没有出现A l-O-Ti键,说明A l2O3组分与TiO2组分在复合过程中,没有发生化学反应,TiO2富集于A l2O3的表面.原子力显微镜分析表明薄膜表面均匀平整,所得平均孔径约为20 nm.
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| 关 键 词： | 异丙醇铝 钛酸丁酯 Al2O3-TiO2复合膜 溶胶凝胶 |
Preparation and haracterization of Al_2O_3-TiO_2 composite membranes |
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| TONG Zhi,CHEN Fang-fang,LI Da-chuan,LEI Tao.Preparation and haracterization of Al_2O_3-TiO_2 composite membranes[J].Basic Sciences Journal of Textile Universities,2011,24(1):146-149. |
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| Authors: | TONG Zhi CHEN Fang-fang LI Da-chuan LEI Tao |
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| Affiliation: | 1(1.School of Environmental and Chemical Engineering,Xi′an Polytechnic University,Xi′an 710048,China;2.Shaanxi Modern Architecture Design and Research Institute,Xi′an 710048,China) |
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| Abstract: | The thermal stability,the chemical compound,the surface morphology of composite membrane are characterized by means of TG-DTG、FI-IR and AFM etc.Al2O3-TiO2 composite membrane was prepared by sol-gel process taking aluminum isopropoxide and tetrabutyl titivate as raw materials.The results show that temperature for 60 ℃,relative humidity keeping 70% are the best conditions to get better integrity gel membrane.The composite membrane’s thermal stability is good,there is no significant quality loss after 500℃;Al-O-Ti bond does not appear in composite membrane,which means there is no chemical reaction during the compound process;TiO2 attaches to the surface of Al2O3;Atomic force microscopy analysis show that the membrane surface is integrity,the membrane pore size is about 20 nm. |
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| Keywords: | aluminum isopropoxide tetrabutyl titivate Al2O3-TiO2 composite membrane sol-gel |
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