Fast synthesis of dopamine-coated Fe_3O_4 nanoparticles through ligand-exchange method  

作　　者：Peng An Fang Zuo Yuan Peng Wu Jun Hua Zhang Zhao Hui Zheng Xiao Bin Ding Yu Xing Peng 

机构地区：[1]Chengdu Institute of Organic Chemistry,Chinese Academy of Sciences,China Chengdu 610041 [2]Graduate School of the Chinese Academy of Sciences,China Beijing 100049 [3]State Key Laboratory of Polymer Materials and Engineering of China,Polymer Research Institute,Sichuan University,China Chengdu 610065 [4]College of Chemistry&Environment Protection Engineering,Southwest University for Nationalities,China Chengdu 610041 [5]State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation,So0uthwest Petroleum University(SWPU),China Chengdu 610500

出　　处：《Chinese Chemical Letters》2012年第9期1099-1102,共4页中国化学快报（英文版）

基　　金：supported by the National Natural Science Foundation of China(No.50903011);the Fundamental Research Funds for the Central Universities(No.11NZYQN23);the Talents Introduction Foundation of Southwest University for Nationalities(No.2010RC06);the Open Fund(No.PLN1112)of State Key Laboratory of Oil and Gas Reservoir Geology and Exploitation(Southwest Petroleum University,SWPU)

摘　　要：A fast approach was described for the synthesis of water-dispersible monodisperse dopamine-coated Fe304 nanoparticles （DA- Fe304） with uniform size and shape via ligand-exchange of oleic acid on Fe304 using only 2 min. The prepared DA-Fe304 nanoparticles were characterized by transmission electron microscopy, Fourier transform infrared spectrometry, and vibrating sample magnetometer. The results indicated that the resulting DA-Fe304 nanoparticles had an average diameter of about 19.2 nm. The magnetic saturation value of the prepared DA-Fe304 nanoparticles was determined to be 72.87 emu/g, which indicating a well- established superparamagnetic property.A fast approach was described for the synthesis of water-dispersible monodisperse dopamine-coated Fe304 nanoparticles （DA- Fe304） with uniform size and shape via ligand-exchange of oleic acid on Fe304 using only 2 min. The prepared DA-Fe304 nanoparticles were characterized by transmission electron microscopy, Fourier transform infrared spectrometry, and vibrating sample magnetometer. The results indicated that the resulting DA-Fe304 nanoparticles had an average diameter of about 19.2 nm. The magnetic saturation value of the prepared DA-Fe304 nanoparticles was determined to be 72.87 emu/g, which indicating a well- established superparamagnetic property.

关 键 词：Magnetic nanoparticles Fe304 DOPAMINE LIGAND-EXCHANGE 

分 类 号：TB383[一般工业技术—材料科学与工程] TM27[电气工程—电工理论与新技术]