BN/ZIF-8 derived carbon hybrid materials for adsorptive desulfurization: Insights into adsorptive property and reaction kinetics

Adsorptive desulfurization of DBT on BN/ZIF-8 derived carbon hybrid materials. [Display omitted] •BN/ZIF-8 derived carbon hybrid materials were prepared by a facile pyrolysis method.•High DBT adsorptive capacity (35.6 mg S g−1) was obtained.•Synergistic effects of Lewis acid-base and π-π interaction...

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Bibliographic Details
Published in:Fuel (Guildford) 2021-03, Vol.288, p.119685, Article 119685
Main Authors: Mu, Liping, Luo, Jing, Wang, Chao, Liu, Jixing, Zou, Yiru, Li, Xiaowei, Huang, Yan, Wu, Peiwen, Ji, Haiyan, Zhu, Wenshuai
Format: Article
Language:English
Subjects:
Adsorbents
Adsorptive desulfurization
Adsorptive property
Adsorptivity
Boron
Boron nitride
Carbon
Carbon doped
Clean fuels
Desulfurization
Desulfurizing
Dibenzothiophene
Fuels
Lewis acid
Nanocomposites
Pyrolysis
Reaction kinetics
Structural hierarchy
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Summary:Adsorptive desulfurization of DBT on BN/ZIF-8 derived carbon hybrid materials. [Display omitted] •BN/ZIF-8 derived carbon hybrid materials were prepared by a facile pyrolysis method.•High DBT adsorptive capacity (35.6 mg S g−1) was obtained.•Synergistic effects of Lewis acid-base and π-π interactions for ADS performances. Adsorption of stubborn sulfides from fuels is a feasible desulfurization strategy to obtain clean fuels, however, the exploration of efficient adsorbents to achieve this target remains a formidable challenge. Here, a hybrid nanocomposite comprising carbon-doped boron nitride (BN) and ZIF-8 derived carbon was constructed through a facile one-pot pyrolysis method. Thanks to the hierarchical porous structure and more exposed Lewis acid sites, the obtained adsorbent gave remarkable desulfurization performance for dibenzothiophene (DBT, 35.6 mg S/g), which was superior to that of the state-of-the-art carbon-doped BN reported under similar conditions so far. Moreover, the as-prepared absorbent exhibited impressive adsorptive capacity for 4-methyldibenzothiophene (4-MDBT) and 4,6-dimethyldibenzothiophene (4,6-DMDBT). Therefore, the BN-C hybrid materials presented here hold great promise for adsorptive desulfurization, as well as other related fields.
ISSN:0016-2361
1873-7153
DOI:10.1016/j.fuel.2020.119685