|کد مقاله||کد نشریه||سال انتشار||مقاله انگلیسی||ترجمه فارسی||نسخه تمام متن|
|1640970||1517207||2016||4 صفحه PDF||سفارش دهید||دانلود رایگان|
• Few-layer BNNSs were prepared using the high pressure homogenizer.
• The suspension can be well dispersed in IPA without any surfactants.
• The exfoliated BNNSs were characterized by Raman and TEM.
• This convenient method provides a good direction for large-scale production.
We demonstrated a facile and efficient approach to fabricate well-dispersed boron nitride nanosheets (BNNSs) by liquid phase exfoliation of hexagonal boron nitride (h-BN) bulk using a high-pressure homogenizer. The h-BN bulk was mixed with isopropyl alcohol for several hours, and then homogenized under 100 MPa for 10 min, followed by centrifugation to obtain the BNNSs. The resulted few-layer BNNSs are confirmed by Raman spectra and transmission electron microscope. The concentration of BNNSs dispersion is accurately measured by Inductive Coupled Plasma, up to 0.083 mg mL−1 and the yield is 3.02%. These results provide a physical perspective applied to the other layered materials by liquid phase exfoliation. The above findings may pave the way for the scalable production of BNNSs.
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Journal: Materials Letters - Volume 181, 15 October 2016, Pages 144–147