通过声化学方法形成的金-磁铁矿纳米复合材料。

Gold-magnetite nanocomposite materials formed via sonochemical methods.

作者信息

Pradhan Anindya, Jones Robin C, Caruntu Daniela, O'Connor Charles J, Tarr Matthew A

机构信息

Department of Chemistry and Advanced Materials Research Institute, University of New Orleans, 2000 Lakeshore Drive, New Orleans, LA 70148, USA.

出版信息

Ultrason Sonochem. 2008 Jul;15(5):891-7. doi: 10.1016/j.ultsonch.2008.01.004. Epub 2008 Jan 26.

DOI:10.1016/j.ultsonch.2008.01.004

PMID:18313969

Abstract

Treatment of preformed magnetite nanoparticles with ultrasound in aqueous media with dissolved tetrachloroauric acid resulted in the formation of gold-magnetite nanocomposite materials. These materials maintained the morphology of the original magnetite particles. The loading of gold particles could be controlled by adjusting experimental parameters, including the addition of small amounts of solvent modifiers such as methanol, diethylene glycol, and oleic acid. The nanocomposite materials were magnetic and exhibited optical properties similar to pure gold nanoparticles.

摘要

在含有溶解的四氯金酸的水性介质中，用超声处理预先形成的磁铁矿纳米颗粒，导致形成金 - 磁铁矿纳米复合材料。这些材料保持了原始磁铁矿颗粒的形态。金颗粒的负载量可以通过调整实验参数来控制，包括添加少量的溶剂改性剂，如甲醇、二甘醇和油酸。该纳米复合材料具有磁性，并且表现出与纯金纳米颗粒相似的光学性质。