首页> 外文期刊>The Open Nanoscience Journal >Preparation and Characterization of Different Shapes of Silver Nanostructures in Aqueous Solution
【24h】

Preparation and Characterization of Different Shapes of Silver Nanostructures in Aqueous Solution

机译:水溶液中不同形状的银纳米结构的制备与表征

获取原文
           

摘要

We have developed a new and simple one-pot synthetic approach for the preparation of single-crystalline rose-, spike-, and snowflake-shaped silver nanostructures (NSs) in aqueous solution. We obtained these variously shaped Ag NSs by carefully controlling the nature and concentration of the stabilizers, which included sodium acetate, sodium citrate, and poly(ethylene glycol). To the best of our knowledge, this paper is the first to describe the preparation of roseshaped Ag NSs, also called Ag nanoflowers (NFs), through such a simple synthetic route. The thus-prepared Ag NFs exhibited a specific surface area of 15.6 m2 g-1, a contact angle of97.6 ± 2.2°, high conductivity (1.97 × 106 S/cm), and efficient optothermal conversion efficiency (the temperature rose 23.03 ± 0.21 °Cafter laser irradiation at 808 nm for 3 min). The snowflake-shaped Ag NSs allowed the enhancement of Raman scattering (SERS) signals ofrhodamine 6G by a factor of 2.4 × 106, leading to a detection limit of 10 nM.
机译:我们已经开发出一种新的简单的一锅法合成方法,用于制备水溶液中的单晶玫瑰形,尖峰形和雪花形银纳米结构(NSs)。我们通过仔细控制稳定剂的性质和浓度来获得这些形状各异的Ag NSs,其中包括乙酸钠,柠檬酸钠和聚乙二醇。据我们所知,本文是第一个描述通过这种简单的合成方法制备玫瑰形Ag NSs(也称为Ag纳米花(NF nanos))的方法。如此制备的Ag NFs的比表面积为15.6 m2 g-1,接触角为97.6±2.2°,具有高电导率(1.97×106 S / cm)和有效的光热转换效率(温度升高23.03±在808 nm激光照射3分钟后为0.21°C)。雪花状的Ag NSs使罗丹明6G的拉曼散射(SERS)信号增强了2.4×106,导致检测极限为10 nM。

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