Efficient separation of vitamins mixture in aqueous solution using a stable zirconium-based metal-organic framework

被引：22

作者：

Zhao, Xudong ^{[1
]}

Zhao, Yuwei ^{[1
]}

Zheng, Meiqi ^{[1
]}

Liu, Shuangxue ^{[1
]}

Xue, Wenjuan ^{[2
]}

Du, Guohua ^{[1
]}

Wang, Ting ^{[1
]}

Gao, Xinli ^{[3
]}

Wang, Keke ^{[4
]}

Hu, Jianshui ^{[1
]}

Gao, Zhuqing ^{[1
]}

Huang, Hongliang ^{[2
]}

机构：

[1] Taiyuan Univ Sci & Technol, Coll Chem & Biol Engn, Taiyuan 030024, Shanxi, Peoples R China

[2] Tianjin Polytech Univ, Natl Ctr Int Joint Res Separat Membranes, State Key Lab Separat Membranes & Membrane Proc, Tianjin 300387, Peoples R China

[3] Taiyuan Univ Sci & Technol, Instrumental Anal Ctr, Taiyuan 030024, Shanxi, Peoples R China

[4] Zhejiang Univ Technol, Coll Chem Engn, State Key Lab Breeding Base Green Chem Synth Tech, Hangzhou 310014, Zhejiang, Peoples R China

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 2019年 / 555卷

基金：

中国国家自然科学基金;

关键词：

Metal-organic framework; Separation; B-vitamins; Electrostatic interaction; BASIS-SETS; NICOTINIC-ACID; REMOVAL; PERFORMANCE; ADSORPTION; OXIDATION; NIACIN; MOFS;

D O I：

10.1016/j.jcis.2019.08.024

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：

High-efficiency separation of niacin (NIA) and nicotinamide (NIC) still faces large challenge up to date. In this work, a stable zirconium-based metal-organic framework (DUT-67) was used to adsorb and separate NIA and NIC in aqueous solutions. The adsorption capacities for NIA and NIC at the concentration ratio of 1:1 were 110.2 mg g(-1) and 11.2 mg g(-1) respectively. Further study indicates that low ratio of NIA/NIC is in favor of the separation. High temperature can restrain the adsorptions of NIA and NIC but promote the separation. Besides, DUT-67 can be well regenerated via a simple method. Mechanism analysis indicates that electrostatic interaction plays a critical role in the separation of these vitamins. (C) 2019 Elsevier Inc. All rights reserved.

引用

页码：714 / 721

页数：8

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