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

被引：102

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.

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页码：65 / 70

页数：6

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