Ultrafine porous boron nitride nanofibers synthesized via a freeze-drying and pyrolysis process and their adsorption properties

Lin, Jing, Xu, Lulu, Huang, Yang, Li, Jie, Wang, Weijia, Feng, Congcong, Liu, Zhenya, Xu, Xuewen, Zou, Jin and Tang,Chengchun (2016) Ultrafine porous boron nitride nanofibers synthesized via a freeze-drying and pyrolysis process and their adsorption properties. RSC Advances, 6 2: 1253-1259. doi:10.1039/c5ra23426c

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Author Lin, Jing
Xu, Lulu
Huang, Yang
Li, Jie
Wang, Weijia
Feng, Congcong
Liu, Zhenya
Xu, Xuewen
Zou, Jin
Tang,Chengchun
Title Ultrafine porous boron nitride nanofibers synthesized via a freeze-drying and pyrolysis process and their adsorption properties
Formatted title
Ultrafine porous boron nitride nanofibers synthesized via a freeze-drying and pyrolysis process and their adsorption properties
Journal name RSC Advances   Check publisher's open access policy
ISSN 2046-2069
Publication date 2016-01-01
Year available 2015
Sub-type Article (original research)
DOI 10.1039/c5ra23426c
Open Access Status File (Publisher version)
Volume 6
Issue 2
Start page 1253
End page 1259
Total pages 7
Place of publication Cambridge, United Kingdom
Publisher Royal Society of Chemistry
Language eng
Subject 1600 Chemistry
1500 Chemical Engineering
Abstract One-dimensional (1D) boron nitride (BN) nanostructures with a high aspect ratio are of prime interest due to their importance in fundamental research and wide-range potential applications. Herein we developed a facile method for the first synthesis of ultrafine porous BN nanofibers in high purity and a high yield. The method included two-steps, freeze-drying of a hot melamine/boric acid solution and post pyrolysis of the as-obtained products. The extremely rapid cooling of the hot melamine/boric acid solution during the freeze-drying process resulted in the formation of ultrafine precursors, which was the key for the final synthesis of porous BN nanofibers with downsized diameters (20–60 nm) and high aspect ratios. The as-synthesized ultrafine BN nanofibers possessed a high specific surface area and a large pore volume, which could be tuned by the pyrolysis parameters. All of these characteristics make the porous BN nanofibers promising in the applications of water treatment, hydrogen storage, catalyst support, etc. Especially, ultrafast adsorption of methylene blue (MB) in water has been demonstrated using the present porous BN nanofibers as an adsorbent.
Keyword Chemistry, Multidisciplinary
Chemistry
Q-Index Code C1
Q-Index Status Provisional Code
Grant ID 51332005
PCSIRT: IRT13060
E2014100011
14JCYBJC42200
Institutional Status UQ
Additional Notes Published online 18 December 2015

 
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