MIL-53 and its OH-bonded variants for bio-polyol adsorption from aqueous solution

被引：3
作者：
Cao, Na [1 ,2 ]
Liu, Jiayi [1 ,3 ]
Wang, Yuecheng [1 ,2 ]
Zhou, Yingwu [1 ,2 ]
Zhao, Meng [1 ,2 ]
Ban, Yujie [1 ,2 ]
Yang, Weishen [1 ,2 ]
机构：
[1] Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
[2] Univ Chinese Acad Sci, Beijing 100049, Peoples R China
[3] Dalian Univ Technol, Zhang Dayu Sch Chem, Dalian 116024, Peoples R China
来源：
RSC ADVANCES | 2022年 / 12卷 / 34期
基金：
中国国家自然科学基金;
关键词：
METAL-ORGANIC FRAMEWORKS; GAS-PHASE; 1,3-PROPANEDIOL; MEMBRANES; THERMODYNAMICS; DEHYDRATION; MECHANISM; EFFICIENT; EXCHANGE; REMOVAL;
D O I：
10.1039/d2ra03203a
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
The adsorption of bio-polyols from dilute aqueous solution is important but faces challenges in the sustainable bio-refinery process. One solution to increase adsorption efficiency is to leverage host-guest interactions between the polyols and materials to grant a preference for polyols. In this study, we synthesized MIL-53 and diverse OH-bonded variants, and studied their adsorption properties towards ethanediol, 1,3-propanediol and glycerol in water. Among the four materials, OH-MIL-53 exhibited fast adsorption kinetics and high capacity, and could be completely regenerated through ethanol elution. Hydrophobic interactions between the alkyl chains of the polyols and the organic linkers of OH-MIL-53 and hydrogen bonding interactions between their OH groups were identified. The synergistic effect of the host-guest interactions is responsible for the unique adsorption performances of OH-MIL-53 towards polyols, and particularly for 1,3-propanediol.
引用
收藏
页码：21681 / 21689
页数：9
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