Structural analysis of zeolite NaA synthesized by a cost-effective hydrothermal method using kaolin and its use as water softener

被引：161

作者：

Loiola, A. R. ^{[1
]}

Andrade, J. C. R. A. ^{[1
]}

Sasaki, J. M. ^{[2
]}

da Silva, L. R. D. ^{[1
]}

机构：

[1] Univ Fed Ceara, Dept Quim Organ & Inorgan, Lab Fisicoquim Minerais & Catalise, BR-60451970 Fortaleza, CE, Brazil

[2] Univ Fed Ceara, Dept Fis, Lab Difracao Raios X, BR-60455760 Fortaleza, CE, Brazil

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2012年 / 367卷

关键词：

Zeolite NaA; Metakaolin; Rietveld refinement; Water softener; ION-EXCHANGE; CRYSTALLIZATION; TRANSFORMATION; PRECURSORS; MICROWAVE; NITROGEN; MIXTURE;

D O I：

10.1016/j.jcis.2010.11.026

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Zeolite 4A (LTA) has been successfully synthesized by a hydrothermal method, where kaolin was used as silica and alumina source. The synthesized zeolite was characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), laser granulometry, and FTIR spectroscopy. XRD data from the Rietveld refinement method confirmed only one crystallographic phase. Zeolite A morphology was observed by SEM analysis, and it showed well-defined crystals with slightly different sizes but with the same cubic shape. Particle size distribution of the crystals was confirmed by laser granulometry, whereas FTIR spectroscopy revealed significant structural differences between the starting material and the final zeolite product used as water softener. (C) 2010 Elsevier Inc. All rights reserved.

引用

页码：34 / 39

页数：6

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