Fig. 3From: Hydrolytic Unzipping of Boron Nitride Nanotubes in Nitric AcidFT-IR spectra of a methylene blue, boron nitride nanoribbons, and boron nitride nanoribbons-methylene blue, where the boron nitride nanotubes were produced by refluxing boron nitride nanotubes in nitric acid for 24 h. b Their enlarged FT-IR spectra in the range from 1700 to 700 nmBack to article page