...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Advanced Materials >The Interaction Of Bromide Ions With Graphitic Materials
【24h】

The Interaction Of Bromide Ions With Graphitic Materials

机译：溴离子与石墨材料的相互作用

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

Two major challenges facing the world in the coming decades concern the availability of clean, cheap energy and clean drinking water. Fresh water supplies are increasingly being threatened, due to population rise, migration to drier regions such as the American southwest, and increasing loss of glacier runoff. Consequently, there is a fast growing demand for energy efficient water purification and desalination technologies. Carbon-based materials have long been used for a variety of water purification operations. It is empirically known that the affinity of activated carbon for various hydrated ions depends critically on how the material is processed. The processing influences the types of chemical groups present on the surface, which in turn influence the strength of interaction between the aqueous ions and the carbon surface. Along similar lines, carbon nanorube-based membranes have been proposed for desalination, and the functional groups present on the carbon-nanotube pore mouth may largely dictate the ion transport or rejection characteristics. While the topic of carbon materials as adsorbents has been studied for decades and numerous applications have emerged, only limited information on the precise details of ion interactions with carbon surfaces has been available. The amphoteric characteristics of carbon are believed to be at the heart of the adsorption of most inorganic species from solution, but an accurate description of the interaction(s) giving rise to this adsorption has been lacking.
机译：未来几十年世界面临的两个主要挑战涉及清洁，廉价能源和清洁饮用水的可用性。由于人口增加，向美国西南部等较干旱地区的迁移以及冰川径流损失的增加，淡水供应正日益受到威胁。因此，对能量有效的水净化和脱盐技术的需求快速增长。碳基材料长期以来一直用于各种水净化操作。根据经验已知活性炭对各种水合离子的亲和力主要取决于材料的加工方式。该处理影响表面上存在的化学基团的类型，而化学基团又影响水性离子与碳表面之间的相互作用强度。沿着相似的路线，已经提出了基于碳纳米管的膜用于脱盐，并且存在于碳纳米管孔口上的官能团可能在很大程度上决定了离子的传输或排斥特性。尽管碳材料作为吸附剂的主题已经研究了数十年，并且出现了许多应用，但有关离子与碳表面相互作用的精确细节的有限信息仍然可用。碳的两性特性被认为是大多数无机物从溶液中吸附的核心，但缺乏对引起这种吸附的相互作用的准确描述。

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