Fig. 7From: High-Yield Preparation and Electrochemical Properties of Few-Layer MoS2 Nanosheets by Exfoliating Natural Molybdenite Powders Directly via a Coupled Ultrasonication-Milling Process a The UV-vis-IR spectra of the FL-MoS2 suspensions (R pm = 1/2, C in = 45 g L−1, P u = 280 W, ω s = 2250 r.p.m) with various exfoliation times (t ex); b the concentrations, and c yield of the FL-MoS2 suspensions after different exfoliation timesBack to article page