Synthesis of aluminophosphate by the ionothermal method using factorial design

被引：5

作者：

Carvalho, Marcella Montorio ^{[2
]}

Ruotolo, Luis Augusto M. ^{[2
]}

Fernandez-Felisbino, Romilda ^{[1
]}

机构：

[1] Univ Fed Sao Paulo, Dept Exact & Earth Sci, Sao Paulo, Brazil

[2] Univ Fed Sao Carlos, Dept Chem Engn, BR-13560 Sao Carlos, SP, Brazil

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2013年 / 165卷

关键词：

Ionothermal synthesis; Magnesium; Aluminophosphates; Factorial design; Ion exchange; MOLECULAR-SIEVES; SOLVENT; WATER;

D O I：

10.1016/j.micromeso.2012.08.020

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

This work addresses the ionothermal synthesis of aluminophosphates with magnesium incorporation in order to generate ion exchange sites. The deep eutectic mixture of urea and choline chloride acts as the solvent and template. A central composite design was used to systematically study the effects of some synthesis parameters on types of aluminophosphates and their ion exchange capacity. XRD analysis revealed that condensed AIPO-CJ2, AEL, AEN, and GIS topologies were formed. Mg incorporation was confirmed by thermogravimetric analysis and ion exchange experiments. The statistical analysis showed that the percentage of eutectic mixture in the gel was the main variable affecting the ion exchange capacity, followed by the crystallization time and the percentage of Mg in the gel. The percentage of choline chloride in the eutectic mixture did not have an influence on the ion exchange properties. (C) 2012 Elsevier Inc. All rights reserved.

引用

页码：163 / 167

页数：5

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