Engineering high specific surface area over poly (ionic liquids)-derived molybdenum-silica hybrid materials for enhanced oxidative desulfurization

被引:12
作者
Huang, Tianqi [1 ,2 ]
Qiu, Xiaofan [1 ,2 ]
Zhu, Linhua [3 ]
Wang, Chao [1 ,2 ]
Li, Hongping [1 ,2 ]
Fan, Yiqun [4 ]
Zhang, Ming [1 ,2 ]
Li, Huaming [1 ,2 ]
Zhu, Wenshuai [1 ,2 ]
机构
[1] Jiangsu Univ, Inst Energy Res, Zhenjiang 212013, Peoples R China
[2] Jiangsu Univ, Sch Chem & Chem Engn, Zhenjiang 212013, Peoples R China
[3] Hainan Normal Univ, Coll Chem & Chem Engn, Engn Res Ctr Trop Marine Funct Polymer Mat Hainan, Key Lab Water Pollut Treatment & Resource Reuse Ha, Haikou 571158, Peoples R China
[4] Nanjing Tech Univ, Coll Chem Engn, State Key Lab Mat Oriented Chem Engn, Nanjing 210009, Peoples R China
来源
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING | 2023年 / 11卷 / 06期
关键词
High specific surface area; Deep oxidative desulfurization; Extractant-free; Poly (ionic liquids); Molybdenum species; HYDROGEN-PEROXIDE; FUEL-OIL; CATALYSTS; DIBENZOTHIOPHENE; PERFORMANCE; HYDRODESULFURIZATION; OXIDE; ACID;
D O I
10.1016/j.jece.2023.111487
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Generally, the high specific surface area of catalysts with a highly uniform dispersion of active centers is beneficial for the improvement of catalytic performance in a reaction. Herein, a kind of mesoporous molybdenum-silica hybrid materials was successfully prepared via one-pot calcination method using molybdenum-based poly (ionic liquids) as template and active metal sources, which was characterized in detail and evaluated in the oxidative desulfurization of organosulfur in fuel. The experimental results indicated that the prepared samples possessed not only high specific surface area, but also a highly uniform dispersion of active sites in the sample. Under mild operating condition, the typical sample (PILMo/Si-400) with a BET area of 597.6 m2/g can achieve the complete desulfurization in 30 min without any additional organic extractant. After recycling for seven times, the desulfurization for PILMo/Si-400 can still reach 100 %. In addition, the possible mechanism for oxidative desulfurization was discussed according to the radical trapping experiments.
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页数:8
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