Self-assemblies of the different morphology ultrafine barium sulfate in situ interface

被引：6
|
作者：
Song, XY [1 ]
Sun, SX [1 ]
Fan, WL [1 ]
Yin, ZL [1 ]
机构：
[1] Shandong Univ, Dept Chem, Jinan 250100, Peoples R China
来源：
MATERIALS LETTERS | 2003年 / 57卷 / 20期
关键词：
extractant primary amine N1923; BaSO4; crystal; organic/aqueous interface;
D O I：
10.1016/S0167-577X(02)01425-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Different morphologies of BaSO4 nanocrystals including nanoparticles and short rods and long fibers were prepared via the static organic/aqueous biphase boundary at the room temperature. The organic phase was a containing primary amine sulfate solution, while the aqueous phase was a solution of Ba2+. The effect of [SO42-]/[Ba2+] molar ratios on the BaSO4 growth process was studied principally by TEM. In addition, it was found that the diluent polarity can also affect self-assembly process of BaSO4 crystals at the interface. The possible mechanism of nanocrystalline BaSO4 self-assembly is discussed. (C) 2002 Elsevier Science B.V. All rights reserved.
引用
收藏
页码：3026 / 3030
页数：5
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