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Exfoliation of Hexagonal Boron Nitride (h-BN) in Liquide Phase by Ion Intercalation.

ABSTRACT: A green approach to prepare exfoliated hexagonal boron nitride nanosheets (h-BNNS) from commercially pristine h-BN involving a two-step procedure was investigated. The first step involves the dispersion of pristine h-BN within an aqueous solution containing gelatin and potassium or zinc chloride using a sonication method. The second involves the removal of larger exfoliated h-BNNS through a centrifugation procedure. The exfoliation was caused not only by the sonication effect but also by intercalation of K? and Zn²⁺ ions. Transmission electronic microscopy, X-ray diffraction and Raman spectroscopy techniques show that the obtained h-BNNS generally display a thickness of about a few (2?3) layers with an exfoliation efficiency as high as 16.3 ± 0.4%.

SUBMITTER: Gonzalez Ortiz D

PROVIDER: S-EPMC6165242 | biostudies-literature | 2018 Sep

REPOSITORIES: biostudies-literature

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Exfoliation of Hexagonal Boron Nitride (h-BN) in Liquide Phase by Ion Intercalation.

Gonzalez Ortiz Danae D Pochat-Bohatier Celine C Cambedouzou Julien J Bechelany Mikhael M Miele Philippe P

Nanomaterials (Basel, Switzerland) 20180912 9

A green approach to prepare exfoliated hexagonal boron nitride nanosheets (h-BNNS) from commercially pristine h-BN involving a two-step procedure was investigated. The first step involves the dispersion of pristine h-BN within an aqueous solution containing gelatin and potassium or zinc chloride using a sonication method. The second involves the removal of larger exfoliated h-BNNS through a centrifugation procedure. The exfoliation was caused not only by the sonication effect but also by interca ...[more]

PMID: 30213048

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