...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Hazardous Materials >Interactions of NO_2 with activated carbons modified with cerium, lanthanum and sodium chlorides
【24h】

Interactions of NO_2 with activated carbons modified with cerium, lanthanum and sodium chlorides

机译：NO_2与铈，镧和氯化钠改性的活性炭的相互作用

获取原文
获取原文并翻译 | 示例
           
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Highly porous wood-based activated carbon was impregnated with cerium, lanthanum and sodium chlorides using incipient impregnation method. On the samples prepared adsorption of NO_2 was carried out from moist (70% humidity) air either with or without the prehumidification. The materials were characterized using adsorption of nitrogen, thermal analysis, FTIR, and potentiometric titration. The results indicated that for all materials a significant amount of NO_2 was reduced to NO and released from the system. In the case of virgin carbons, the NO_2 interacting with the surface along with nitric and nitrous acids formed there in the presence of water significantly increased the acidity of the carbons by the formation of oxygen-containing groups and organic nitrates. On the other hand, when chlorides were present the capacity to interact with nitrogen dioxide increased since the inorganic phase, depending on the nature of metal, bound NO_2 in the forms of nitrates (Ce, La, Na), got oxidized/oxidized carbon surface (for Ce) or contributed to the formation of nitrosyl chloride (for Na).
机译：使用初期浸渍法，用铈，镧和氯化钠浸渍高度多孔的木质基活性炭。在有或没有预加湿的情况下，在潮湿（70％湿度）的空气中对制备的样品进行NO_2的吸附。使用氮气吸附，热分析，FTIR和电位滴定法对材料进行表征。结果表明，对于所有材料，大量的NO_2被还原为NO并从系统中释放出来。在纯碳的情况下，NO_2与表面相互作用，并在水存在下在其中形成的硝酸和亚硝酸通过形成含氧基团和有机硝酸盐显着增加了碳的酸度。另一方面，当存在氯化物时，由于无机相（取决于金属的性质）以硝酸盐（Ce，La，Na）的形式结合的NO_2被氧化了，所以与二氧化氮相互作用的能力增强了（对于Ce）或有助于形成亚硝酰氯（对于Na）。

著录项

  • 来源
    《Journal of Hazardous Materials》 |2009年第3期|704-713|共10页
  • 作者

    Karifala Kante; Eleni Deliyanni; Teresa J. Bandosz;

  • 作者单位

    Department of Chemistry, The City College of New York The Graduate School of the City University of New York, 138 St, Convent Avenue, New York, NY 10031, USA;

    Department of Chemistry, The City College of New York The Graduate School of the City University of New York, 138 St, Convent Avenue, New York, NY 10031, USA Section of Chemical Technology & Industrial Chemistry, School of Chemistry, Aristotle University, Box 116, GR-54124 Thessaloniki, Greece;

    Department of Chemistry, The City College of New York The Graduate School of the City University of New York, 138 St, Convent Avenue, New York, NY 10031, USA;

  • 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);美国《化学文摘》(CA);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    activated carbons; adsorption; nitrogen dioxide; oxidation;

    机译：活性炭;吸附二氧化氮;氧化;

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