| 小粒子尺寸纳米LaFeO3的制备、表征及光催化性能 |
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| 引用本文： | 姚常浩,屈宜春,井立强.小粒子尺寸纳米LaFeO3的制备、表征及光催化性能[J].黑龙江水专学报,2011,2(4):53-56. |
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| 作者姓名： | 姚常浩 屈宜春 井立强 |
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| 作者单位： | 黑龙江大学 功能无机材料化学教育部重点实验室,哈尔滨150080;黑龙江大学 化学化工与材料学院,哈尔滨150080 |
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| 基金项目： | 国家自然科学基金项目（21071408） |
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| 摘 要： | 利用KH331调制的柠檬酸溶胶一水热法合成了LaFeO3纳米粒子,并通过XRD、TEM、BET等进行了表征.重点研究了KH331对LaFeO3粒子尺寸的调控以及对光催化活性的影响.实验结果表明:KH331的引入显著地减小了LaFeO3的粒子尺寸,KH331的用量越大,LaFeO3粒子尺寸越小,并对KH331的作用机制进行了分析.而且适量KH331的引入可以使LaFeO3的可见光催化活性得到较大提高.
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| 关 键 词： | 纳米LaFeO3 KH331 小粒子尺寸 可见光催化活性 |
Synthesis of small particle size LaFeO3 nanoparticles as high active visible photocatalysts |
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| YAO Chang-ha
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QU Yi-Chun
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JING Li-qiang.Synthesis of small particle size LaFeO3 nanoparticles as high active visible photocatalysts[J].Journal of Heilongjiang Hydraulic Engineering College,2011,2(4):53-56. |
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| Authors: | YAO Chang-ha QU Yi-Chun JING Li-qiang |
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| Affiliation: | (Heilongjiang University a. Key Laboratory of Functional Inorganic Materials ChemistryMinistry of Education; b. School of Chemistry and Materials Science, Harbin 150080, China) |
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| Abstract: | Nanosized LaFeO3 has been synthesized by a KH331 modified sol-hydrothermal method, and also characterized by X-ray diffraction （XRD）, transmission electron microscopy （TEM）, Brunauer Emmett Teller （BET）, X-ray photoelectron spectroscopy （XPS）. The effects of KH331 modification on the particle size and photocatalytic activity of resulting LaFeO3 were investigated. The results showed that the KH331 introduced could significantly control the particle size of LaFeO3 during the thermal treatment, and the nano-sized LaFeO3 synthesized by introducing the suitable content of silane coupling agent exhibits good photocatalytic activity, which is attributed to the large surface area. |
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| Keywords: | nana-sized LaFeO3 KH331 small particle size visible photocatalytic activity |
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