| 段长平,李微,孙彤,刘连利,代悦.沉淀法制备低维纳米AlO(OH)的工艺条件研究[J].材料导报,2016,30(10):83-86, 112 |
| 沉淀法制备低维纳米AlO(OH)的工艺条件研究 |
| Study on the Preparation Technological Condition of Low-dimensional Nanoscale AlO(OH) by Precipitation Method |
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| DOI：10.11896/j.issn.1005-023X.2016.10.019 |
| 中文关键词: 纳米 低维 AlO(OH) 沉淀法 工艺条件 |
| 英文关键词: nanoscale, low dimension, AlO(OH), precipitation method, technological condition |
| 基金项目:辽宁省教育厅科学技术研究项目(L2013429)；中华环境保护基金会格平绿色行动辽宁环境科研教育“123工程”资助项目(CEPF2012-123-2-5) |
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| 中文摘要: |
| 在不同工艺条件下采用沉淀法制备了低维纳米AlO(OH),并对样品进行了XRD、FT-IR及SEM表征分析。结果表明,pH值较低和较高时,样品的结晶度均较低。反应温度为75 ℃和95 ℃时,样品的结晶度均较好,无杂质。当pH值为9.0、反应温度为85 ℃时,样品中存在大量缔合-OH,AlO(OH)结晶度较好,且有少量Al(OH)3晶体存在。由于SDBS在Al(OH)3颗粒表面形成完整胶束,且有空间位阻效应,此时形成的样品为5 nm厚、长宽可达100～300 nm的边缘卷曲的蓬松片状物,形貌规则、尺寸均匀、分散性较好。 |
| 英文摘要: |
| A series of low-dimensional nanoscale AlO(OH) were prepared by precipitation method under diverse technological conditions, and were characterized by XRD, FT-IR and SEM. The results showed that the crystallinities of the samples were lower both at high and low pH values. While the reaction temperature was 75 ℃ or 95 ℃, the products exhibited higher crystallinities and contained no impurity. At pH value of 9.0, reaction temperature of 85 ℃, the sample had a lot of associate -OH, and high crystallinity AlO(OH) with a little Al(OH)3 crystal. Because of the complete micelles of SDBS formed on the surface of Al(OH)3 particles and their space location-obstruct effect, the sample showed curly fluffy flake with thickness of 5 nm and width of 100-300 nm, regular shape, uniform size and good dispersion. |
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