Adjusting surface acidity of hollow mesoporous carbon nanospheres for enhanced adsorptive denitrogenation of fuels - Details

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Abstract：

Mesoporous　carbons　are　widely　utilized　as　adsorbents　for　adsorptive　removal　of　nitrogen-containing　compounds　in　fuel.　Herein,　hollow　mesoporous　carbon　nanospheres　(HMCNs)　were　successfully　synthesized　via　a　facile　silica-assisted　sol–gel　strategy　and　further　oxidized　by　different　acids　(HNO3,　H2SO4,　and　(NH4)2S2O8)　to　adjust　their　surface　chemistry.　The　HMCNs　oxidized　with　(NH4)2S2O8　contain　the　most　oxygen-containing　groups　and　exhibit　the　strongest　acidity,　resulting　in　high　adsorption　capacities　towards　quinoline　(QUI,　29.78　mgN·g−1)　and　indole　(IND,　26.59　mgN·g−1)　in　model　fuel.　The　superior　performance　is　attributed　to　the　acid-base　interaction　and　hydrogen　bonding　interaction　between　the　adsorbent　and　QUI/IND　molecules.　Remarkably,　the　adsorption　capacity　towards　nitrogen-containing　compounds　in　real　diesel　is　as　high　as　19.19　mgN·g−1　at　50　°C.　Our　work　has　paved　the　way　to　the　rational　design　and　synthesis　of　high-performance　adsorbents　for　the　removal　of　nitrogen-containing　compounds　in　real　diesel　on　a　large　scale.　©　2020　Elsevier　Ltd

Keyword：

Acid–base interaction; Adsorptive denitrogenation; Hydrogen bonding interaction; Mesoporous carbon; Surface chemistry

Community：

[ 1 ] [Li, Z.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 2 ] [Liang, H.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, 350002, China
[ 3 ] [Li, X.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 4 ] [Yang, C.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 5 ] [Ge, B.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 6 ] [Xiong, S.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 7 ] [Zhang, H.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 8 ] [Wang, T.]College of Chemical Engineering, Fuzhou University, Fuzhou, 350002, China
[ 9 ] [Yuan, P.]National Engineering Research Center of Chemical Fertilizer Catalyst, Fuzhou University, Fuzhou, 350002, China

Reprint 's Address：

[Zhang, H.]College of Chemical Engineering, Fuzhou UniversityChina

Email：

zhanghw@fzu.edu.cn

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Source ：

Chemical Engineering Science

ISSN： 0009-2509

Year： 2020

Volume： 228

4 . 3 1 1

JCR@2020

4 . 1 0 0

JCR@2023

ESI HC Threshold：160

JCR Journal Grade：2

CAS Journal Grade：3

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SCOPUS Cited Count：

ESI Highly Cited Papers on the List： 0 Unfold All

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Chinese Cited Count：

30 Days PV： 1

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