Sonochemical synthesis and characterization of Ag2S/PVA and CuS/PVA nanocomposite

被引：101
|
作者：
Kumar, RV [1 ]
Palchik, O [1 ]
Koltypin, Y [1 ]
Diamant, Y [1 ]
Gedanken, A [1 ]
机构：
[1] Bar Ilan Univ, Dept Chem, IL-52900 Ramat Gan, Israel
来源：
ULTRASONICS SONOCHEMISTRY | 2002年 / 9卷 / 02期
关键词：
sonochemistry; metal sulfide-polymer nanocomposite; nanocrystalline;
D O I：
10.1016/S1350-4177(01)00100-6
中图分类号：
O42 [声学];
学科分类号：
070206 ; 082403 ;
摘要：
Nanospherical Ag2S/PVA and nanoneedles of CuS/PVA composite have been prepared by sonochemical irradiation of a 10% ethylenediamine-water solution of elemental sulfur, silver nitrate, or copper acetate in the presence of polyvinyl alcohol. The particle sizes are 25 and 225 nm for Ag2S/PVA and CuS/PVA nanocomposites, respectively. These nanocomposite materials are characterized using analytical techniques such as X-ray diffraction, transmission electron microscopy, thermo-gravimetric analysis, and diffuse reflection spectroscopy. A band gap of 1.05 and 2.08 eV are estimated for Ag2S/PVA and CuS/PVA nanocomposites, respectively. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：65 / 70
页数：6
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