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2009•Journal of Sichuan University of Science & EngineeringRequires access

Preparation and Structrural Characterization of Citric Acid-pillared Hydrotalcites

Xianji Guo

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Abstract

The Zn-Al and Mg-Al layered double hydroxides(denoted as Zn2Al-CO3-LDHs and Mg2Al-CO3-LDHs) were prepared by coprecipitation method.The structures of the products were characterized by XRD,IR methods.Zn2Al-CO3-LDHs and Mg2Al-CO3-LDHs as precursors,for the medium of ethylene glycol,prepared by ion exchange Zn2Al-C6H7O7-LDHs and Mg2Al-C6H7O7-LDHs.The structures of the products were characterized by XRD,IR methods.The results show that: C6H7O7-can replace hydrotalcite layer of CO32-,pillared hydrotalcite has good layered structure.

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What this paper is about

The Zn-Al and Mg-Al layered double hydroxides(denoted as Zn2Al-CO3-LDHs and Mg2Al-CO3-LDHs) were prepared by coprecipitation method.The structures of the products were characterized by XRD,IR methods.Zn2Al-CO3-LDHs and Mg2Al-CO3-LDHs as precursors,for the medium of ethylene glycol,prepared by ion exchange Zn2Al-C6H7O7-LDHs and Mg2Al-C6H7O7-LDHs.The structures of the products were characterized by XRD,IR methods.The results show that: C6H7O7-can replace hydrotalcite layer of CO32-,pillared hydrotalcite has good layered structure.

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Available abstract

The Zn-Al and Mg-Al layered double hydroxides(denoted as Zn2Al-CO3-LDHs and Mg2Al-CO3-LDHs) were prepared by coprecipitation method.The structures of the products were characterized by XRD,IR methods.Zn2Al-CO3-LDHs and Mg2Al-CO3-LDHs as precursors,for the medium of ethylene glycol,prepared by ion exchange Zn2Al-C6H7O7-LDHs and Mg2Al-C6H7O7-LDHs.The structures of the products were characterized by XRD,IR methods.The results show that: C6H7O7-can replace hydrotalcite layer of CO32-,pillared hydrotalcite has good layered structure.

Key concepts: Coprecipitation, Layered double hydroxides, Hydrotalcite, Ion exchange, Materials science, Citric acid, Chemical engineering, Nuclear chemistry

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Preparation and Structrural Characterization of Citric Acid-pillared Hydrotalcites — Research Paper | ScholarLens