Controlled assembly of MnFe2O4 nanoparticles on MoS2 nanosheets by a facile sonochemical method

This study established a facile one-step strategy to anchor MnFe 2 O 4 nanoparticles on the surface of MoS 2 nanosheets in a controlled manner. The as-prepared MnFe 2 O 4 /MoS 2 nanocomposites were investigated by TEM, XRD, XPS, Raman, BET and VSM in detail. The MnFe 2 O 4 nanoparticles with an average particle size of 26 nm were densely and uniformly decorated on MoS 2 nanosheets, and consequently, both the aggregation of MnFe 2 O 4 nanoparticles and restacking of MoS 2 nanosheets were effectively prevented. More importantly, the MnFe 2 O 4 /MoS 2 nanocomposites exhibited high specific surface area, typical superparamagnetic behavior and excellent solution dispersion, showing a great potential for biomedical applications in the fields of magnetic resonance imaging, targeted drug delivery and tumor hyperthermia.