Production of Levulinic Acid via Cellulose Conversion Over Metal Oxide-Loaded MOF Catalysts in Aqueous Medium

被引：19
|
作者：
Wang, Kaifeng [1 ,2 ]
Liu, Ya [1 ]
Wu, Wufeng [3 ,4 ,5 ]
Chen, Yu [6 ]
Fang, Lina [2 ]
Li, Wanbin [3 ,4 ,5 ]
Ji, Hongbing [2 ]
机构：
[1] Shihezi Univ, Sch Food, Shihezi 832000, Peoples R China
[2] Sun Yat Sen Univ, Huizhou Res Inst, Huizhou 516081, Peoples R China
[3] Jinan Univ, Sch Environm, Guangzhou 511443, Guangdong, Peoples R China
[4] Jinan Univ, Sch Environm, Guangzhou Key Lab Environm Exposure & Hlth, Guangzhou 510632, Guangdong, Peoples R China
[5] Jinan Univ, Sch Environm, Guangdong Key Lab Environm Pollut & Hlth, Guangzhou 510632, Guangdong, Peoples R China
[6] Hanshan Normal Univ, Sch Chem & Environm Engn, Chaozhou 521041, Guangdong, Peoples R China
来源：
CATALYSIS LETTERS | 2020年 / 150卷 / 02期
基金：
中国国家自然科学基金;
关键词：
Cellulose; Levulinic acid; Catalytic conversion; Metal oxide-loaded MOFs catalyst; Aqueous medium; RENEWABLE ENERGY; LACTIC-ACID; OXIDATION; BIOMASS; UIO-66; WATER;
D O I：
10.1007/s10562-019-03023-y
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, Zr-MOF material (UiO-66) was modified with different metal oxides (CeO2, Ga2O3, and CoO) and employed in the conversion of cellulose to levulinic acid (LA) in aqueous medium. The research results showed that the introduction of the metal oxides increased the acid content of the catalysts, especially in medium-strong acid. The selectivity of LA was related to the type of metal oxide and the content of medium-strong acid. Due to the activity of Ga2O3 and more medium-strong acid, the yield of LA reaches a maximum yield of 32.0 mol% at 513 K for 360 min when Ga2O3-UiO-66 was employed as the catalysts. The combination of metal oxide and UiO-66 enables the reaction to proceed, providing a new direction for the conversion of cellulose to LA in the aqueous phase. Graphic In this study, Zr-MOFs material (UiO-66) was modified with different metal oxides (CeO2, Ga2O3, and CoO) and employed in the conversion of cellulose to levulinic acid in aqueous medium. The results indicated that the addition of metal oxides changes the acidity of UiO-66, which improves the catalytic activity. The selectivity of LA was related to the type of metal oxide and the content of medium-strong acid.
引用
收藏
页码：322 / 331
页数：10
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