5 years ago

Hexagonal Boron Nitride for Adsorption of Saccharides

Hexagonal Boron Nitride for Adsorption of Saccharides
Atsushi Fukuoka, Hirokazu Kobayashi
Recognition of saccharides is crucial in their separation, purification, and catalytic conversion. In this work, we demonstrated that hexagonal boron nitride (h-BN) adsorbs saccharides in water. Controlled experiments and density functional theory calculations have indicated that the adsorption is mainly driven by dispersion force occurring between CH groups of saccharides and π electrons on basal plane of h-BN. Accordingly, h-BN can distinguish between different saccharides by the number of CH groups that can contact with the basal plane. The salt effect on the adsorption correlated with the Hofmeister series, which shows the presence of hydrophobic interactions in the adsorption of sugars. Moreover, conversion of glucose to fructose is accelerated by h-BN, possibly due to its acid/base catalysis.

Publisher URL: http://dx.doi.org/10.1021/acs.jpcc.7b05077

DOI: 10.1021/acs.jpcc.7b05077

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