Silane-functionalized delaminated hydrotalcite, and preparation method and application of hydrotalcite

The invention provides silane-functionalized delaminated hydrotalcite, and a preparation method and an application of the hydrotalcite. The silane-functionalized delaminated hydrotalcite is prepared by conducting functionalized modification on delaminated hydrotalcite with N-(beta-aminoethyl)-gamma-...

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Bibliographische Detailangaben
Hauptverfasser:	ZHAO XIUQIAO, XU QINGHONG
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY CHEMISTRY METALLURGY PERFORMING OPERATIONS PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL THEIR RELEVANT APPARATUS TRANSPORTING TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
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Beschreibung
Zusammenfassung:	The invention provides silane-functionalized delaminated hydrotalcite, and a preparation method and an application of the hydrotalcite. The silane-functionalized delaminated hydrotalcite is prepared by conducting functionalized modification on delaminated hydrotalcite with N-(beta-aminoethyl)-gamma-aminopropyl triethoxy silane (short for KH-791), wherein KH-791 is linked with hydroxy on the surface of a single-layer sheet of the delaminated hydrotalcite by an Si-O-M (M represents metal ions on the hydrotalcite) bond. The silane-functionalized delaminated hydrotalcite has an adsorptive property on transition metal ions such as Cr, Mn, Fe, Co, Ni, Cu, Zn and Pb, and can be used for removing the transition metal ions in industrial waste water. The preparation method is easy and simple to operate, low in equipment requirement, and high in safety, and raw materials are easy to obtain.