Redox reactions of arabinogalactan with silver ions and formation of nanocomposites

被引：35
作者：
Grishchenko, L. A.
Medvedeva, S. A.
Aleksandrova, G. P.
Feoktistova, L. P.
Sapozhnikov, A. N.
Sukhov, B. G.
Trofimov, B. A.
机构：
[1] Russian Acad Sci, Siberian Div, Favorskii Irkutsk Inst Chem, Irkutsk 664033, Russia
[2] Russian Acad Sci, Siberian Div, Vinogradov Irkutsk Inst Geochem, Irkutsk 664033, Russia
来源：
RUSSIAN JOURNAL OF GENERAL CHEMISTRY | 2006年 / 76卷 / 07期
关键词：
Silver Nanoparticles; General Chemistry; Aldehyde Group; Carboxy Group; Silver Content;
D O I：
10.1134/S1070363206070189
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
Formation of silver nanoparticles in the course of chemical reduction of AgNO3 with arabinogalactan in aqueous alkaline solution was studied by electronic absorption spectroscopy and X-ray diffraction analysis. The pH of the solution was found to be the major factor affecting the degree of reduction of Ag+ ions. The probable reaction mechanism was discussed. Composites containing up to 58% Ag, with the metal particle size of 7-16 nm, were prepared. The nanoparticle size can be controlled by varying the reactant ratio AgNO3 : arabinogalactan. Chemical modification of arabinogalactan was confirmed by IR and C-13 NMR spectroscopy and by TLC.
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收藏
页码：1111 / 1116
页数：6
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