Aqueous Solution-Based Fe3O4 Seed-Mediated Route to Hydrophilic Fe3O4-Au Janus Nanoparticles.
Hydrophilic Fe3O4-Au Janus nanoparticles have been synthesized through a facile aqueous solution-based Fe3O4 seed-mediated chemical reduction route, where Au nanoparticles can be in situ formed on surfaces of PVP-modified Fe3O4 nanoparticles by adopting the well-known citrate reduction route. The diameter of Au nanoparticles can be controllably tuned in the range of 3-12 nm by simply changing the initial molar ratio between sodium citrate and auric acid. The as-fabricated hydrophilic Fe3O4-Au Janus nanoparticles have shown excellent catalytic performance with high catalytic activity and recyclability due to the synergetic effect between Au and Fe3O4 nanoparticles.
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, Jiangsu, P. R. China.
Chenjing
C
Jin
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, Jiangsu, P. R. China.
Yun
Y
Qu
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, Jiangsu, P. R. China.
Minggui
M
Wang
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, Jiangsu, P. R. China.
Jie
J
Han
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, Jiangsu, P. R. China.
Yimin
Y
Hu
School of Chemistry and Chemical Engineering, Yangzhou University , Yangzhou 225002, Jiangsu, P. R. China.
Rong
R
Guo