Abstract
Abstract We report on the synthesis of novel boron nitride nanoarchitectures through in-situ conversion of porous boron nitride via a metal ion-assisted annealing method. Numerous highly crystallized nanoplates with thickness of ∼20 nm aggregate as building blocks to form the boron nitride nanoarchitecture. The adsorption of low concentration of metal ions, i.e. terbium ions, plays an important role for the in-situ conversion of porous boron nitride microfibers to nanoarchitectures. Owing to their unique microstructure with rough surfaces, the as-prepared boron nitride nanoarchitectures show superhydrophobicity with a high contact angle of 167.9°. Photoluminescence studies indicate that the nanoarchitectures exhibit intense ultraviolet emission from boron nitride nanostructures and green emission from terbium ions. The combination of unique microstructures and properties enables boron nitride nanoarchitectures to be attractive for applications in catalytic support and self-cleaning coatings.
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