%P 3806-3813
%T Dual template route for the synthesis of hierarchical porous boron nitride
%V 41
%I Elsevier Ltd
%A M. Maleki
%A A. Beitollahi
%A J. Javadpour
%A N. Yahya
%D 2015
%R 10.1016/j.ceramint.2014.11.056
%N 3
%O cited By 29
%J Ceramics International
%L scholars5985
%K Ammonia; Aromatic compounds; Boron nitride; Microporosity; Nitrides; Polystyrenes; Powders; Transmission electron microscopy, Ammonia atmosphere; CTAB; Hierarchical porous; High adsorption capacity; High-resolution TEM; Inorganic templates; Polystyrene latexes; Synthesized materials, III-V semiconductors
%X Here, a facile dual templates method for the synthesis of hierarchical porous boron nitride (HPBN) powders is reported. For this purpose, ammonia borane (AB) and polystyrene latex/cetyltrimethyl ammonium bromide (CTAB) were used as BN precursor and inorganic templates, respectively. The as-synthesized material was pyrolyzed at 1150 °C in ammonia atmosphere resulting in the formation of white BN powder. The typical N2 sorption analysis demonstrated formation of porous BN with presence of macro/meso and micropores. Transmission electron microscope (TEM) observations revealed the existence of rather uniform macropores with 55-60 nm in diameter, as well as wormlike mesopores and micropores extended between macropores walls. X-ray diffraction (XRD) and high resolution TEM (HRTEM) analyses displayed the formation of turbostratic-BN with atomic layer distance of 0.37 nm. HPBN powders showed fast adsorption rate of methylene blue (MB) solution and high adsorption capacity of 263.1 mg g-1 for MB at room temperature. © 2014 Elsevier Ltd and Techna Group S.r.l.