Studies on the Surface Interaction and Dispersity of Silver Nanoparticles in Organic Solvents
ZENG Rong, RONG Min-Zhi, ZHANG Ming-Qiu, ZENG Han-Min
Institute of Materials Science, Key Laboratory of Polymeric Composite & Functional Materials of the Ministry of Education of China, Zhongshan University, Guangzhou 510275
Studies on the Surface Interaction and Dispersity of Silver Nanoparticles in Organic Solvents
Institute of Materials Science, Key Laboratory of Polymeric Composite & Functional Materials of the Ministry of Education of China, Zhongshan University, Guangzhou 510275
Abstract： Silver nanoparticles with different sizes have been prepared by microemulsion and have been surface-modified with C12H25SH. Electron spin resonance results indicate that there exist some kinds of surface local paramagnetic sites in capped Ag nanoparticles, which leads to the relation between electron spin resonance parameters and particle size deviating from Kawabata's description. There is a strong interaction between nanosilver and chloroform. The smaller the particles, the stronger the interaction. Transmission electron microscopy and ultravilolet-visible absorption spectra confirmed that Ag nanoparticles are well dispersed in chloroform, implying that a good dispersity of Ag nanoparticles in polymers could be obtained by means of solution mixing by using chloroform as the solvent.
ZENG Rong;RONG Min-Zhi;ZHANG Ming-Qiu;ZENG Han-Min. Studies on the Surface Interaction and Dispersity of Silver Nanoparticles in Organic Solvents[J]. 中国物理快报, 2000, 17(9): 697-699.
ZENG Rong, RONG Min-Zhi, ZHANG Ming-Qiu, ZENG Han-Min. Studies on the Surface Interaction and Dispersity of Silver Nanoparticles in Organic Solvents. Chin. Phys. Lett., 2000, 17(9): 697-699.
2000, Vol. 17 
