| 含钛废液回收制备纳米级TiO2的组织结构 |
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| 引用本文： | 戴朝晖,唐电,邵艳群. 含钛废液回收制备纳米级TiO2的组织结构[J]. 热处理, 2008, 23(3): 43-45 |
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| 作者姓名： | 戴朝晖 唐电 邵艳群 |
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| 作者单位： | 福州大学材料研究所,福建福州,350002;福州大学材料研究所,福建福州,350002;福州大学材料研究所,福建福州,350002 |
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| 基金项目： | 国家自然科学基金 , 国家高技术研究发展计划(863计划) |
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| 摘 要： | 以含硫酸钛的工业废液为原料，NaOH为沉淀剂，利用直接沉淀法制备出纳米TiO2粉体，利用XRD、FE-TEM等分析测试手段，对粉体粒子的物相组成、晶粒尺度、微观形态进行了表征，结果表明，所制备的二氧化钛经过400℃到700℃二热处理可以获得单相锐钛矿相，颗粒尺度为7～25nm左右，在800℃处理可获得锐钛矿相和金红石相双相组织。
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| 关 键 词： | 废液 纳米TiO2 沉淀法 |
The Structure of Nanoscale Titanium Dioxide Prepared from Titaniferous Waste Liquor |
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| DAI Zhao-hui,TANG Dian,SHAO Yan-qun. The Structure of Nanoscale Titanium Dioxide Prepared from Titaniferous Waste Liquor[J]. Heat Treatment, 2008, 23(3): 43-45 |
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| Authors: | DAI Zhao-hui TANG Dian SHAO Yan-qun |
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| Affiliation: | ( Institute for Materials Research, Fuzhou University, Fuzhou 350002, Fujian) |
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| Abstract: | Taking titanium-sulphate-containing waste liquor as raw material and sodium hydroxide as precipitating agent, the nanosized TiO2 powder could be prepared by a direct precipitation process. Phase composition, grain size and microstructure of the TiO2 powder were characterized by XRD and FE-TEM . The results show that the mono- phase anatase will be obtained after being heat-treated in the range of 400℃ to 700℃, with the grain size being 7 -25 nm, and that the dual-phase structure of anatase and rutile will be obtained after being heat-treated at 800 ℃, for the prepared TiO2. |
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| Keywords: | wast liquor nanoscale TiO2 precipitation method |
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