Vapor-assisted crystallization of in situ glycine-modified UiO-66 with enhanced CO2 adsorption

被引：6
作者：
Fujimoto, Yugo [1 ]
Shu, Yasuhiro [1 ]
Taniguchi, Yurika [1 ]
Miyake, Koji [1 ]
Uchida, Yoshiaki [1 ]
Tanaka, Shunsuke [2 ]
Nishiyama, Norikazu [1 ]
机构：
[1] Osaka Univ, Grad Sch Engn Sci, Div Chem Engn, 1-3 Machikaneyama, Toyonaka, Osaka 5608531, Japan
[2] Kansai Univ, Fac Environm & Urban Engn, Dept Chem Energy & Environm Engn, 3-3-35 Yamate Cho, Suita, Osaka 5648680, Japan
来源：
NEW JOURNAL OF CHEMISTRY | 2022年 / 46卷 / 04期
关键词：
METAL-ORGANIC FRAMEWORK; WATER-ADSORPTION;
D O I：
10.1039/d1nj05284e
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
UiO-66, composed of a Zr6O4(OH)(4) cluster and 1,4-benzene dicarboxylate, is a promising material for practical chemical processes because it is known as one of the most thermally and chemically stable Metal Organic Frameworks (MOFs). Recently, the structure and composition of UiO-66 have been modified in various ways to improve its functionality and expand its utilization. Herein, we report the synthesis of in situ glycine-modified UiO-66 using a vapor-assisted crystallization (VAC) method. The VAC method using HCl turned out to be the most suitable for synthesizing of glycine-modified UiO-66 with high crystallinity and porosity. Modifying glycine enhanced the CO2 adsorption capacity. In XPS measurement on Zr 3d, the peak shift to higher binding energy was observed by modifying glycine. This result implys that carboxylates derived from glycine chemically interacted with defects of Zr clusters. This work provides a new direction to modify UiO-66.
引用
收藏
页码：1779 / 1784
页数：6
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