烟气脱硫
材料科学
石墨烯
吸附
硫黄
氧化物
化学工程
锌
汽油
多孔性
制作
纳米技术
有机化学
复合材料
冶金
化学
工程类
病理
医学
替代医学
作者
Yan Liu,Xiaojun Zhang,Meiyan Yang,Bowen Guo,Jixiang Guo,Dan Luo
出处
期刊:NANO
[World Scientific]
日期:2020-05-01
卷期号:15 (05): 2050059-2050059
被引量:2
标识
DOI:10.1142/s1793292020500599
摘要
Sulfur oxides are air pollutants derived mainly from the combustion of gasoline. Reducing the sulfur content of fluid catalytic cracking (FCC) gasoline is of key importance for the prevention and control of atmospheric pollution. We describe herein the fabrication and characterization of a porous, three-dimensional (3D) graphene oxide-supported zinc oxide (GO/ZnO) scaffold as an adsorbent for desulfurization with various model compounds and real FCC gasoline. The uniform and stable dispersion of ZnO nanoparticles on the surface of GO facilitates the specific binding of sulfides. Moreover, GO synergistically adsorbs aryl sulfides via [Formula: see text]–[Formula: see text] stacking interactions. The GO/ZnO nanosheets were further self-assembled into a 3D porous scaffold that effectively trapped sulfides and inhibited desorption. These scaffolds exhibited excellent desulfurization performance with maximum sulfur capacity up to 29.73[Formula: see text]mg S/g. This work provides a novel perspective on the fabrication of high-efficiency adsorbents for gasoline pretreatment.
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