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High‐performance adsorptive desulfurization by ternary hybrid boron carbon nitride aerogel
Author(s) -
Luo Jing,
Wang Chao,
Liu Jixing,
Wei Yanchen,
Chao Yanhong,
Zou Yiru,
Mu Liping,
Huang Yan,
Li Huaming,
Zhu Wenshuai
Publication year - 2021
Publication title -
aiche journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.958
H-Index - 167
eISSN - 1547-5905
pISSN - 0001-1541
DOI - 10.1002/aic.17280
Subject(s) - aerogel , organosulfur compounds , dibenzothiophene , adsorption , boron nitride , chemical engineering , flue gas desulfurization , carbon fibers , ternary operation , materials science , chemistry , organic chemistry , inorganic chemistry , sulfur , nanotechnology , composite material , composite number , computer science , engineering , programming language
Separation of aromatic organosulfur compounds is vital for upgrading the feed to clean fuel products, however, it remains a formidable challenge for the present adsorbents. Herein, a series of novel aerogel‐like boron carbon nitride (BCN) with three‐dimensional interconnected porous networks were fabricated via a hydrogel template and freeze‐casting strategy. The as‐prepared aerogel‐like BCN had a variable carbon content and a flexible size of graphene domain on its porous structure. The optimal BCN aerogel represents the top‐level of adsorptive desulfurization (ADS) capacity for aromatic organosulfur compounds (30.8 mg S/g adsorbent), strikingly higher than the state‐of‐the‐art aerogels adsorbents (17.1 mg S/g adsorbent) reported under similar conditions. A selective adsorption for dibenzothiophene in the presence of aromatic hydrocarbons, nitrogen compounds were also achieved on BCN aerogel. The adsorption isotherm and XPS measurement reveal heterogeneous adsorption on the BCN aerogel via π–π and Lewis acid–base interactions.