Meso-porous material containing nano silver granulates and preparing method

The present invention relates to a mesopore material containing nano silver granules. It is characterized by that more than 90% of nano silver granules are distributed in the pore channels, their grain size is 2-8n. Its preparation method includes the following steps: (a), nitration treatment of mes...

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Bibliographic Details
Main Author YINFENG,LIU ZHAO
Format Patent
LanguageEnglish
Published 13.06.2007
Subjects
CASTING
MAKING METALLIC POWDER
MANUFACTURE OF ARTICLES FROM METALLIC POWDER
PERFORMING OPERATIONS
POWDER METALLURGY
TRANSPORTING
WORKING METALLIC POWDER
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Summary:The present invention relates to a mesopore material containing nano silver granules. It is characterized by that more than 90% of nano silver granules are distributed in the pore channels, their grain size is 2-8n. Its preparation method includes the following steps: (a), nitration treatment of mesopore material: nitridizing mesopore material for 10-80 hr, at 70-1200 deg.C in the atmosphere containing ammonia to obtain nitrided mesopore material; the composition of atmosphere containing ammonia is: inert gas/ammonia=0-99%; (b) immersion: immersing the nitrided mesopore material prepared in step (a) in soluble silver salt aqueous solution whose concentration is 0.001-1 mal/l, under the ultrasonic or water bath condition stirring for 0.5-10 hr, then drying; and (c) calcinations: calcining the immersed sample prepared in step (b) for 3-24 hr at 300-550 deg.C so as to obtain the invented product.
Bibliography:Application Number: CN20051126230