还原法制备二氧化硅/银复合粒子

Abstract

Abstract: SiO₂/Ag composite particles were prepared by chemical reduction method using spherical nano-sized silica and AgNO₃ as raw materials.Influencing law of reducing agent,AgNO₃ adding amount,reacting temperature,and reacting time on Ag carrying content of SiO₂ particles were studied.XRD and AAS were used to characterize Ag carrying content,morphology,and average particle size of products.Results showed that under the conditions of the concentration of AgNO₃3×10^-2 mol/L,the volume of AgNO₃ and ethanol solution 20 mL,reaction temperature 30 ℃,reaction time 2 h,and acetaldehyde as reductant,Ag carrying content of SiO₂ particles was 10.6% (mass fraction).

Key words: silica, silver, composite particles, reduction method

CLC Number:

ZHENG Dian-Mo, YE Huan-Ying, ZHUANG Ye-Kai, XIONG Xun-Man. Preparation of SiO₂/Ag composite particles by reduction method[J]. INORGANICCHEMICALSINDUSTRY, 2011, 43(6): 37-.

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Inorganic Acid-Base-Salt Committee of CIESC

Preparation of SiO₂/Ag composite particles by reduction method

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Preparation of SiO₂/Ag composite particles by reduction method