Citation: Jing Cao, Hai Li Lin, Pei Jie Xia, Zhan Jun He. Preparation and characterization of AgSt/AgCl composite grains[J]. Chinese Chemical Letters, ;2007, 18(12): 1521-1524. doi: 10.1016/j.cclet.2007.10.008 shu

Preparation and characterization of AgSt/AgCl composite grains

a Department of Chemistry, Huaibei Teachers College of Coal Industry, Huaibei 235000, China;
b Technical Institute of Physics and Chemistry, Chinese Academy of Sciences, Beijing 100080, China

Received Date: 26 July 2007

Fund Project: This research was jointly supported by the grants from National Natural Science Foundation of China (No.20303025) and Doctor Start Fund of Huaibei Teachers College of Coal Industry (No.6293).

AgSt/AgCl composite grains were prepared by adding chloride ions to a mixed solvent in which silver stearate (AgSt) grains were dispersed under the condition of controlled pH value and characterized by SEM, XRD, UV and DSC. The results showed that AgSt/AgCl composite grains were composed of plate-like AgSt grains with small face-centered cubic AgCl particles formed on the surface of AgSt. UV spectra displayed a red shift of absorption for AgSt/AgCl relative to pure AgSt or AgCl. DSC showed a new thermal phase transition of AgSt/AgCl grains.
- Composite grains,
- Silver stearate,
- Silver chloride,
- pH
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