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Citation: Yao Su-Wei, Liu Heng-Quan, Zhang Wei-Guo, Wang Hong-Zhi, Zheng Chang-Feng. In-Situ Preparation of Silver Nanoparticles and Single Crystal in Linear Chitosan Films[J]. Acta Physico-Chimica Sinica, ;2003, 19(05): 464-468. doi: 10.3866/PKU.WHXB20030518 shu

In-Situ Preparation of Silver Nanoparticles and Single Crystal in Linear Chitosan Films

1.
School of Chemical Engineering and Technology, Tianjin University, Tianjin　300072

Received Date: 10 September 2002
Available Online: 15 May 2003

In the present paper, in-situ preparation of spherical silver nanoparticles(10～30 nm),triangular and hexangular single silver crystal(200～2000 nm) have been conducted in linear chitosan films by photochemical reduction. The spherical silver nanoparticles(5～8 nm) have also been obtained electrochemically in the film. The chitosan/Ag complex has been characterized by means of TEM, SEM, IR spectra and XRD, the preliminary analysis and discussion about the causes of changing of silver crystal structure from multi crystal to single crystal in photochemical reduction process have been carried out.
- Chitosan;Photochemical reduction;Electrochemical reduction;Silver nanoparticles;Silver single crystal
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