期刊
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH
卷 57, 期 8, 页码 2838-2846出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.iecr.7b04087
关键词
-
资金
- National Natural Science Foundation of China [21676023]
In this paper, we selected a less studied highspeed dispersive homogenizer as a shear-exfoliating device and selected NMP which matches the surface energy of MoS2 as a solvent to prepare few-layer MoS2 nanosheets. The effects of operating parameters on the concentration of few-layer MoS2 nanosheets were systematically studied. The results showed that the change of operating conditions has a direct influence on the exfoliation effects. The concentration of MoS2 nanosheets was 0.96 mg/mL in pure NMP under the optimized conditions. The concentration reached 1.44 mg/mL, and the highest yield was 4.8% after adding sodium citrate. Particularly, their lateral size is about 50-200 nm, in which almost 65% of MoS2 nanosheets are less than four layers and 9% are monolayer. It was verified that the as-used exfoliation method is simple and highly efficient.
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