The Preparation and Characterization of Fe3O4/Au Nanoparticles Modified by Chitosan
Chitosan is a natural polymer with reduction property,and has good biocompatibility.In the present work,chitosan was used as a reducing and protective agent to prepare Fe3O4/Au hybrid nanoparticles through chemical reduction method in the presence of Fe3O4 nanoparticles.This approach did not contain any toxic materials.And the process is a simple and green route to prepare multi-functional composite nanoparticles.UV-Vis spectrum of the composite nanoparticles had a absorption peak at 535nm which was similar to Au nanoparticles.TEM showed that the nanoparticles had a diameter of ca.20nm and dispersed uniformly.In XRD spectrum,the peaks of Au and Fe3O4 were both observed.XPS and FT-IR indicated the nanoparticles were modified by chitosan.And TGA showed that the amount of chitosan was about 18.7%.
Fe3O4/Au nanoparticles chitosan environment-friendly approach
Wu Yuanpeng Yang Shengping Ding Qiang Chen Hao Xia Rong Xie Qiaoyun Xie Juan Lin Yuanhua Zheng Zhaohui
State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Southwest Petroleum Universit School of Materials Science and Engineering, Southwest Petroleum University, Chengdu 610500 Chengdu Institute of Organic Chemistry, Chinese Academy of Sciences, Chengdu 610041
国际会议
上海
英文
151-151
2012-10-19（万方平台首次上网日期，不代表论文的发表时间）