...
首页> 外文期刊>Inorganic materials >Synthesis and thermoanalytical study of SiO2-TiO2 composites modified with macrocyclic endoreceptors
【24h】

Synthesis and thermoanalytical study of SiO2-TiO2 composites modified with macrocyclic endoreceptors

机译:大环内受体修饰的SiO2-TiO2复合材料的合成及热分析研究

获取原文
获取原文并翻译 | 示例
           

摘要

We have developed processes for the fabrication of SiO2-TiO2 composites containing crown ethers (CEs) with composite: CE weight ratios from 1: 0.06 to 1: 1. As oxide sources, we used titania and silica sols. The composites were characterized by differential thermal analysis, X-ray diffraction, and adsorption gravimetry. The results demonstrate that most of the water and the solvent are bound into a complex with the CE, which decomposes at temperatures from 170 to 230A degrees C. The temperature range of CE removal depends on the SiO2: TiO2 and oxide: CE ratios in the composite. Our results demonstrate effectiveness of strontium cation imprint formation in an adsorbent in the sol-gel processing step, which ensures an increase in the amount of strontium cation adsorption by 20%. We have identified conditions for quantitative lanthanum, strontium, and barium adsorption on the synthesized composites.
机译:我们已经开发出了制造含有冠醚(CE)的SiO2-TiO2复合材料的方法,复合材料与CE的重量比为1:0.06至1:1。作为氧化源,我们使用了二氧化钛和硅溶胶。通过差热分析,X射线衍射和吸附重量分析法对复合材料进行了表征。结果表明,大多数水和溶剂都与CE结合成复合物,CE在170至230A的温度下分解。CE去除的温度范围取决于SiO2:TiO2和氧化物:CE的比例。综合。我们的结果证明了溶胶-凝胶工艺步骤中吸附剂中锶阳离子压印形成的有效性,这确保了锶阳离子吸附量增加了20%。我们已经确定了在合成的复合材料上镧,锶和钡的定量吸附条件。

著录项

  • 来源
    《Inorganic materials》 |2016年第3期|294-300|共7页
  • 作者单位

    Belarussian State Technol Univ, Ul Sverdlova 13a, Minsk 220006, Byelarus;

    Belarussian State Technol Univ, Ul Sverdlova 13a, Minsk 220006, Byelarus;

    Russian Acad Sci, Postovsky Inst Organ Synth, Ural Branch, Ul S Kovalevskoi Akad Skaya 22-20, Ekaterinburg 620990, Russia|Yeltsin Fed Univ, Ul Mira 19, Ekaterinburg 620002, Russia;

    Russian Acad Sci, Postovsky Inst Organ Synth, Ural Branch, Ul S Kovalevskoi Akad Skaya 22-20, Ekaterinburg 620990, Russia;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    composite; silicon titanium mixed oxide; crown ether; selective adsorption;

    机译:复合材料;硅钛复合氧化物;冠醚;选择性吸附;

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱:kefu@zhangqiaokeyan.com

京公网安备:11010802029741号 ICP备案号:京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有
  • 客服微信

  • 服务号