Preparation and characterization of Ti and V modified analcime from local kaolin

被引：38

作者：

Hegazy, Eman Z. ^{[1
,2
]}

El Maksod, Islam Hamdy Abd ^{[1
,2
]}

El Enin, R. M. M. Abo ^{[1
]}

机构：

[1] Natl Res Ctr, Dept Phys Chem, Cairo 12622, Egypt

[2] King Abdulaziz Univ, Fac Sci, Dept Chem, Jeddah 21569, Saudi Arabia

来源：

APPLIED CLAY SCIENCE | 2010年 / 49卷 / 03期

关键词：

Analcime; Kaolin; Surface properties; ESR; EDX; SEM; Ion exchange; TITANOSILICATE ETS-4; REMOVAL; ZEOLITES; LEAD;

D O I：

10.1016/j.clay.2010.04.019

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070305 [高分子化学与物理];

摘要：

A synthetic analcime was modified by incorporation of Ti or V. Egyptian kaolin was selected as a starting material. The modified zeolite was tested for the removal of Cu2+, Ni2+ and Pb2+. XRD (X-ray diffraction), SEM (scanning electron microscope), EDX (energy dispersive X-ray), ESR(electron spin resonance), TGA (thermal gravimetric analysis) and DSC (differential scanning calorimetry) were used to characterize the modified analcime. The modified analcime showed a good removal of ions. The preference towards various heavy metal ions under investigation was dependent on the amount of incorporated Ti or V. The size of the analcime crystal decreased as the amount of Ti or V increased. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：149 / 155

页数：7

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