当前位置: X-MOL 学术Inorg. Chem. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Substituent Dependence on Series of Cationic Gyroidal MOFs in utc-c Topology with High CO2 Affinity and Ultrahigh Anionic Dye Adsorption Capacity
Inorganic Chemistry ( IF 4.3 ) Pub Date : 2022-06-21 , DOI: 10.1021/acs.inorgchem.2c00538
Wan-Cui Liu 1 , Hua-Shu Wu 1 , Zi-Ying Huang 1 , Yue Qin 1 , Ze-Xian Tao 2 , Wei-Quan Lin 2 , Zhi-Guang Xu 1 , Jian-Zhong Wu 1 , Yong-Cong Ou 1
Affiliation  

A substituent decorating strategy for modification of the functional cavity is of great importance in the design of metal–organic frameworks (MOFs). Herein, three new isostructural cationic MOFs, [Cu3(Xpip)2]·NO3·nH2O (Xpip stands for X-substituted phenylimidazophenanthroline, where X = adm (SCNU-2), f (SCNU-3), and none for SCNU-4), have been successfully synthesized and shown gyroidal utc-c topology and large pore sizes which can be adjusted by different substituents (−N(CH3)2, −F, and −H). Interestingly, the differences of the substituents (sizes and proton donor/acceptor) show essential effects on the adsorption abilities of carbon dioxide and dyes, where SCNU-4 exhibits the highest CO2 affinity and the biggest adsorption capacity for anionic dyes Fluorescein Sodium, and SCNU-3 adsorbs the largest amount (1503.6 mg/g) of Acid Fuchsin to date for the reported porous materials. The detailed studies in adsorption kinetics, adsorption isotherms, and theoretical calculation of the binding energies between the structures and dye molecules confirm that the electric properties of the frameworks (cationic) and substituents directed to the pore surface are two important factors dramatically affecting the selective dye adsorption.

中文翻译:

具有高 CO2 亲和力和超高阴离子染料吸附能力的 utc-c 拓扑中一系列阳离子 Gyroidal MOF 的取代基依赖性

用于修饰功能腔的取代基装饰策略在金属有机框架(MOF)的设计中非常重要。在此,三个新的同构阳离子 MOF,[Cu 3 (Xpip) 2 ]·NO 3 ·nH 2 O (Xpip 代表 X-取代的苯基咪唑菲咯啉,其中 X = adm (SCNU-2), f (SCNU-3), 和SCNU-4 没有),已成功合成并显示出螺旋形 utc-c拓扑结构和大孔径,可通过不同的取代基(-N(CH 3 ) 2进行调整)、-F 和 -H)。有趣的是,取代基(大小和质子供体/受体)的差异对二氧化碳和染料的吸附能力具有重要影响,其中SCNU-4表现出最高的CO 2亲和力和对阴离子染料荧光素钠的最大吸附能力,并且迄今为止,SCNU-3 对已报道的多孔材料的酸性品红吸附量最大(1503.6 mg/g)。对吸附动力学、吸附等温线以及结构和染料分子之间结合能的理论计算的详细研究证实,骨架(阳离子)的电学性质和指向孔表面的取代基是显着影响选择性染料的两个重要因素吸附。
更新日期:2022-06-21
down
wechat
bug