| Fe_2O_3/TiO_2复合纳米管阵列的制备及其可见光催化性能研究 |
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| 作者姓名： | 雷锐 陈荣生 张博威 詹玮婷 李杨 倪红卫 |
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| 作者单位： | 武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081,武汉科技大学省部共建耐火材料与冶金国家重点实验室,湖北 武汉,430081 |
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| 基金项目： | 国家自然科学基金资助项目(51171133,51471122,51601136)；湖北省自然科学基金重点项目(2015CFA128). |
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| 摘 要： | 在氟化铵-乙二醇体系中,采用阳极氧化法在铁基体上制备Fe_2O_3纳米管阵列,然后以氟钛酸铵为钛源,利用水热法在Fe_2O_3纳米管阵列上负载TiO_2纳米片,制得Fe_2O_3/TiO_2复合纳米管阵列,利用SEM、EDS、XRD、TEM、UV-Vis等手段,对所制Fe_2O_3/TiO_2纳米管阵列的表面形貌、物相结构及光催化性能进行表征,并分析Fe_2O_3/TiO_2纳米结构对亚甲基蓝的可见光降解能力。结果表明,Fe_2O_3/TiO_2复合纳米管阵列具有良好的可见光响应;NH_4F浓度为0.4%、水热反应3h制备的Fe_2O_3/TiO_2复合结构具有最佳的光催化性能,对亚甲基蓝的降解率可达90%。
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| 关 键 词： | Fe2O3/TiO2 复合纳米管 阳极氧化法 水热法 光催化降解 亚甲基蓝 |
| 收稿时间： | 2017/2/13 0:00:00 |
Preparation and visible-light photocatalytic performance of Fe2O3/TiO2 composite nanotube arrays |
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| Authors: | Lei Rui Chen Rongsheng Zhang Bowei Zhan Weiting Li Yang and Ni Hongwei |
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| Affiliation: | State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China,State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China,State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China,State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China,State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China and State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, China |
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| Abstract: | Fe2O3 nanotube arrays (NTAs) were prepared on pure iron substrate via anodic oxidation method in NH4F-ethylene glycol electrolytes, and then hydrothermal method was adopted to carry TiO2 nanosheets with (NH4)2TiF6 as titanium source, the Fe2O3/TiO2 nanocomposites were therefore synthesized. The morphology, microstructure, phase composition, photocatalytic properties, especially the photocatalytic degradation performance for methylene blue solution of prepared Fe2O3/TiO2 nanocomposites were characterized by SEM, EDS, TEM, XRD and UV-Vis. The results show that the obtained Fe2O3/TiO2 nanocomposites exhibit good visible-light response. Moreover, the Fe2O3/TiO2 NTAs prepared under the condition that NH4F concentration is 0.4% and hydrothermal reaction time is 3 h has the best photocatalytic activity, and the degradation rate of methylene blue solution can reach 90%. |
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| Keywords: | Fe2O3/TiO2 composite nanotube anodic oxidation method hydrothermal method photocatalytic degradation methylene blue |
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