Author:
Kim Jae-Hun,Kulish Vadym. V.,Wu Shunnian,Wu Ping,Shi Yue,Osada Minoru,Kim Hyoun Woo,Kim Sang Sub
Abstract
AbstractWe report on the layer-dependent stability of muscovite-type two-dimensional (2D) mica nanosheets (KAl3Si3O10(OH)2). First-principles calculations on mica nanosheets with different layer thicknesses (n = 1, 2, and 3) reveal their layer-dependent stability; odd-numbered 2D mica nanosheets are more stable than even-numbered ones, and the preferable stability of odd-numbered layers originates from electronic effects. A core-shielding model is proposed with a reasonable assumption, successfully proving the instability of the even-numbered mica nanosheets. Raman imaging supports that the population of odd-numbered mica nanosheets is predominant in exfoliated mica products. The alternating charge states with odd/even layers were evidenced by Kelvin probe force microscopy. We also demonstrate a unique photocatalytic degradation, opening new doors for environmental applications of mica nanosheets.
Funder
National Research Foundation of Korea
Japan Society for the Promotion of Science
Publisher
Springer Science and Business Media LLC
Cited by
1 articles.
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