...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Fluorometric sensing of ultralow As(III) concentrations using Ag doped hollow CdS/ZnS bi-layer nanoparticles
【24h】

Fluorometric sensing of ultralow As(III) concentrations using Ag doped hollow CdS/ZnS bi-layer nanoparticles

机译：使用Ag掺杂的空心CdS / ZnS双层纳米颗粒对超低As（III）浓度进行荧光检测

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

Arsenic poisoning from drinking water has been an important global issue in recent years. Because of the high level toxicity of arsenic to human health, an easy, inexpensive, low level and highly selective detection technique is of great importance to take any early precautions. This study reports the synthesis of Ag doped hollow CdS/ZnS bi-layer (Ag-h-CdS/ZnS) nanoparticles for the easy fluorometric determination of As(III) ions in the aqueous phase. The hollow bi-layer structures were synthesized by a sacrificial core method using AgBr as the sacrificial core and the core was removed by dissolution in an ammonium hydroxide solution. The synthesized nanoparticles were characterized using different instrumental techniques. A good linear relationship was obtained between fluorescence quenching intensity and As(III) concentration in the range of 0.75-22.5 mu g L-1 at neutral pH with a limit of detection as low as 0.226 mu g L-1.
机译：近年来，饮用水中砷中毒已成为全球重要的问题。由于砷对人体健康的高毒性，一种简便，廉价，低含量，高选择性的检测技术对于采取任何早期预防措施至关重要。这项研究报告了Ag掺杂空心CdS / ZnS双层（Ag-h-CdS / ZnS）纳米颗粒的合成，用于荧光法轻松测定水相中的As（III）离子。通过使用AgBr作为牺牲芯的牺牲芯法合成空心双层结构，并通过溶解在氢氧化铵溶液中除去芯。使用不同的仪器技术表征了合成的纳米颗粒。在中性pH下，荧光猝灭强度与As（III）浓度在0.75-22.5μg L-1范围内获得了良好的线性关系，检出限低至0.226μg L-1。

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