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Nanomaterials 2018, 8(9), 716; https://doi.org/10.3390/nano8090716

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

1
Institut Européen des Membranes (IEM), UMR-5635, CNRS, ENCSM, University of Montpellier, Place Eugene Bataillon, 34095 Montpellier, France
2
Institut de Chimie Séparative de Marcoule (ICSM), CEA, CNRS, ENSCM, University of Montpellier, 30207 Marcoule, France
3
Institut Universitaire de France (IUF), 1 Rue Descartes, 75231 Paris CEDEX 5, France
*
Authors to whom correspondence should be addressed.
Received: 17 July 2018 / Revised: 28 August 2018 / Accepted: 5 September 2018 / Published: 12 September 2018
(This article belongs to the Special Issue Boron Nitride Nanostructures)
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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%. View Full-Text
Keywords: liquid exfoliation; boron nitride nanosheets; ion intercalation; gelatin liquid exfoliation; boron nitride nanosheets; ion intercalation; gelatin
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Gonzalez Ortiz, D.; Pochat-Bohatier, C.; Cambedouzou, J.; Bechelany, M.; Miele, P. Exfoliation of Hexagonal Boron Nitride (h-BN) in Liquide Phase by Ion Intercalation. Nanomaterials 2018, 8, 716.

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