Large Scale Synthesis of Superparamagnetic Self-driven Janus Nanomotor by a Simple Method
A novel self–driven Janus nanomotor was developed by preparing a large number of Pt nanoparticles loaded on Fe3O4@SiO2 Janus particles with mild conditions and easy fabrication. By asymmetric modification and a small amount of platinum loading, superparamagnetic Janus particles were fabricated, which were easy to recycle and reuse. Particle movement was observed due to the catalytic decomposition of hydrogen peroxide aqueous solution. It was found that in the short term, there was a linear motion, while in the long term, the motion direction and trajectory were random.