| 微波水热-固相法制备钙铁石型Ca2Fe2O5粉体及其表征 |
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| 引用本文： | 王静,王芬,朱建锋,赵春.微波水热-固相法制备钙铁石型Ca2Fe2O5粉体及其表征[J].西北轻工业学院学报,2012(5):30-33. |
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| 作者姓名： | 王静 王芬 朱建锋 赵春 |
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| 作者单位： | 陕西科技大学材料科学与工程学院 |
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| 基金项目： | 国家自然科学基金项目(51072109) |
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| 摘 要： | 以硝酸铁和硝酸钙为原料,草酸铵作为络合剂,用氨水调节pH,采用微波水热-固相法制备钙铁石型Ca2Fe2O5粉体.利用XRD和SEM对产物的物相和微观形貌进行表征,结果表明：微波水热预处理后得到的CaCO3-Fe2O3复合氧化物,颗粒度小,反应活性较高,在700℃下焙烧3h便可制备正交晶系的Ca2Fe2O5粉体.
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| 关 键 词： | Ca2Fe2O5 光催化剂 晶体相貌 微波水热-固相法 |
Microwave-hydrothermal-sintering synthesis and characterization of Ca2Fe2O5 |
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| WANG jing,WANG fen,ZHU Jian-feng,Zhao Chun.Microwave-hydrothermal-sintering synthesis and characterization of Ca2Fe2O5[J].Journal of Northwest University of Light Industry,2012(5):30-33. |
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| Authors: | WANG jing WANG fen ZHU Jian-feng Zhao Chun |
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| Affiliation: | (Colege of Materials Science and Engineering,Shaanxi University of Science & Technology,Xi′an 710021,China) |
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| Abstract: | Ca2Fe2O5 powder were prepared by microwave hydrothermal-sintering method with iron nitrate and calcium nitrate as raw materials,ammonium oxalate as a complexing agent,adjusting the pH with ammonia.The prepared powders were characterized by X-ray diffraction（XRD） and SEM,the results show that the microwave hydrothermal treatment made a fine CaCO3-Fe2O3 complex oxide,which possesses high ratio surface area and high surface energy.And hence,the Ca2Fe2O5 powder of orthorhombic can be prepared by calcining the as synthesized CaCO3-Fe2O3 complex oxide at 700 ℃ for 3 h. |
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| Keywords: | Ca2Fe2O5 photocatalysts crystal appearance microwave hydrothermal-sintering |
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