| 水热法合成CdWO_4纳米棒及其光致发光性能 |
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| 引用本文： | 易小红,俞建长,李金土,于佳.水热法合成CdWO_4纳米棒及其光致发光性能[J].硅酸盐学报,2010,38(2). |
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| 作者姓名： | 易小红 俞建长 李金土 于佳 |
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| 作者单位： | 福州大学材料科学与工程学院,福州,350108 |
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| 基金项目： | 福建省自然科学基金(2008J0146)资助项目 |
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| 摘 要： | 以硝酸镉、钨酸钠为原料,十二烷基苯磺酸钠(sodium dodecyl benzenesulfonate,SDBS)为表面活性剂,采用水热法制备了钨酸镉(CdWO4)纳米棒。利用X射线衍射、场发射透射电镜和荧光光谱测试对样品进行表征。初步分析了SDBS浓度对CdWO4纳米粉末的微观形貌及其性能的影响,并探讨了其可能的形成机理。结果表明:当SDBS的浓度为0.002mol/L时,得到短柱状CdWO4纳米粉末,随着SDBS浓度增大,制得的CdWO4纳米棒长径比增大;当SDBS浓度为0.2mol/L时,得到长柱状CdWO4纳米棒,其长径比为20～25。在300nm波长激发下,短柱状和长柱状CdWO4纳米棒均有490nm的宽发射峰,且随着长径比的增大CdWO4纳米棒的光致发光性能增强。
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| 关 键 词： | 钨酸镉 表面活性剂 水热法 纳米棒 |
HYDROTHERMAL PREPARATION AND LUMINESCENCE OF CdWO_4 NANORODS |
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| YI Xiaohong,YU Jianchang,LI Jintu,YU Jia.HYDROTHERMAL PREPARATION AND LUMINESCENCE OF CdWO_4 NANORODS[J].Journal of The Chinese Ceramic Society,2010,38(2). |
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| Authors: | YI Xiaohong YU Jianchang LI Jintu YU Jia |
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| Affiliation: | College of Materials Science and Engineering;Fuzhou University;Fuzhou 350108;China |
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| Abstract: | Cadmium tungstate (CdWO4) nanorods were synthesized from cadmium nitrate and sodium tungstate,via a hydrothermal method with the presence of sodium dodecyl benzenesulfonate (SDBS),The morphology and properties of the synthesized products were characterized by X-ray diffraction,field transmission electron microscopy and fluorescence light spectrum examination.Possible mechanism of fabricating CdWO4 nanorods was investigated.When the concentration of SDBS is 0.002 mol/L,the synthesized product is short column... |
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| Keywords: | cadmium tungstate surfactant hydrothermal method nanorods |
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