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| Fe2O3/ZnO纳米复合结构的制备及其光催化性能研究 |
| Synthesis and photocatalytic activity of Fe2O3/ZnO nanocomposite structures |
| 投稿时间：2017-02-06 |
| DOI： |
| 中文关键词: Fe2O3/ZnO 纳米管阵列 Fe2O3 ZnO纳米棒 光催化降解 亚甲基蓝 |
| 英文关键词: Fe2O3/ZnO nanotube array Fe2O3 ZnO nanorod photocatalytic degradation methylene blue |
| 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). |
| 作者 | 单位 | E-mail | | 雷锐 | 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 | leirui0@163.com | | 陈荣生 | 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 | | | 张博威 | 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 | | | 詹玮婷 | 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 | | | 李杨 | 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 | | | 倪红卫 | 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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| 中文摘要: |
| 通过阳极氧化法在纯铁片基底上生长Fe2O3纳米管阵列薄膜,然后采用水热法在Fe2O3纳米管阵列薄膜上负载ZnO纳米棒,制得Fe2O3/ZnO复合纳米结构。借助FE-SEM、XRD、TEM、UV-Vis等手段,对不同反应时间下制得的Fe2O3/ZnO复合材料的形貌、结构、物相组成及光催化性能进行表征,重点考察了复合结构的亚甲基蓝可见光降解能力。结果表明,在外加电压为55 V的条件下阳极氧化450 s,所制备的Fe2O3纳米管阵列具有高度有序、分布均匀及垂直取向的结构特点,管径约为80 nm；在90 ℃的碱性锌酸盐溶液中,水热反应1.5 h后,制得的Fe2O3/ZnO复合材料具有最佳的光催化性能,该样品对亚甲基蓝的降解率可达85%。 |
| 英文摘要: |
| Fe2O3 nanotube arrays (NTAs) films were prepared on pure iron substrates by anodic oxidation approach, then ZnO nanorods were synthesized on the surface of Fe2O3 NTAs via hydrothermal method, and the Fe2O3/ZnO nanocomposites were therefore obtained. With the aid of FE-SEM, EDS, XRD, TEM and UV-Vis, the morphology, microstructure, phase composition and photocatalytic properties of the Fe2O3/ZnO nanocomposites prepared with different reaction times were characterized, and the performance for degradation of methylene blue solution under visible-light irradiation was studied. The results show that Fe2O3 NTAs prepared at the anode oxidation voltage of 55 V for 450 s exhibits highly ordered, uniformly distributed and vertically oriented structure, with the average tube diameter of 80 nm. After hydrothermal reaction in alkaline zincate solution at 90 ℃ for 1.5 h, the synthesized Fe2O3/ZnO nanocomposites exhibits the optimum photocatalytic property, and the degradation rate of methylene blue solution can reach 85%. |
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