• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>ACS Symposium Series 890; Symposium on Nanotechnology and the Environment: Applications and Implications; ; >Porous Membranes Containing Zero-Valent Iron Nanorods for Water Treatment
【24h】

Porous Membranes Containing Zero-Valent Iron Nanorods for Water Treatment

机译：含零价铁纳米棒的多孔膜用于水处理

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

Zero-valent iron has long been known to be very active for the dechlorination of chlorinated organics. Early studies showed the efficacy of granular iron for degradation of trichloroethylene. These studies showed that although the reduction was effective, the reaction was slow, and could result in significant formation of degradation by-products. Reducing the size of the iron particles to the nano-range has been very effective for increasing the rate of reaction, and subsequently reducing the formation of by-products. However, with increased activity came decreased material stability. Zero-valent iron nanoparticles are subject to oxidation in air and hydrolysis in water. In both cases, these reactions significantly reduce the efficiency of these materials for large-scale application. That is, how do you store the materials and keep them active until they are needed? In this work, composite, polymeric materials are formed containing zero-valent nanoparticles. The nanoparticles have been formed in-situ and ex-situ, although the final reduction reaction occurs in the membrane-phase. In this paper, the formation of porous membranes containing zero-valent iron nanorods is discussed, and preliminary results are given to demonstrate the promise of these materials for degradation of chlorinated organics.
机译：长期以来，零价铁对于氯化有机物的脱氯非常活跃。早期研究表明，粒状铁可降解三氯乙烯。这些研究表明，尽管还原有效，但反应缓慢，并可能导致降解副产物的大量形成。将铁颗粒的尺寸减小至纳米范围对于提高反应速率并随后减少副产物的形成非常有效。但是，随着活性的增加，材料的稳定性下降。零价铁纳米粒子在空气中易氧化，在水中易水解。在这两种情况下，这些反应都会大大降低这些材料在大规模应用中的效率。也就是说，如何存储材料并保持其活动状态直到需要它们？在这项工作中，形成了包含零价纳米粒子的复合聚合物材料。尽管最终的还原反应发生在膜相中，但是纳米颗粒已经在原位和非原位形成。在本文中，讨论了包含零价铁纳米棒的多孔膜的形成，并给出了初步结果以证明这些材料可降解氯化有机物。

著录项

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