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One-step template-free synthesis of 3D functionalized flower-like boron nitride nanosheets for NH3 and CO2 adsorption

journal contribution
posted on 14.06.2018, 00:00 authored by Chen Yang, Jinfeng Wang, Ying (Ian) ChenYing (Ian) Chen, Dan LiuDan Liu, Shaoming Huang, Weiwei LeiWeiwei Lei
3D functionalized flower-like boron nitride nanosheets (FBNNSs) were synthesized by a novel template-free method involving "cylinder compressing". Due to the high surface area (1114 m2 g-1), pore volume (0.7 cm3 g-1), hierarchical pore distributions, and abundant edge groups (-OH and -NH2), the 3D functionalized FBNNSs displayed excellent NH3 and CO2 adsorption up to 91 mg g-1 and 37.9 cc g-1 (74.4 mg g-1) at 1 bar, respectively. Moreover, the reusable performance of the material for gas adsorption was maintained for 10 cycles, indicating the stable structure of the FBNNSs. In addition, the adsorption mechanism was mainly explained by Lewis acid/base interactions, weak van der Waals interactions, and H-bonds. The combination of the enhanced adsorption capacity, excellent regenerability, and extraordinary chemical and thermal stability means that 3D FBNNSs possess huge potential for implementation in practical NH3 and CO2 capture.

History

Journal

Nanoscale

Volume

10

Issue

23

Pagination

10979 - 10985

Publisher

Royal Society of Chemistry

Location

London, Eng.

eISSN

2040-3372

Language

eng

Publication classification

C1 Refereed article in a scholarly journal

Copyright notice

2018, The Royal Society of Chemistry