Two nanocage anionic metal–organic frameworks with rht topology and {[M(H2O)6]6}12+ charge aggregation for rapid and selective adsorption of cationic dyes

2014 ◽  
Vol 50 (93) ◽  
pp. 14674-14677 ◽  
Author(s):  
Zhifeng Zhu ◽  
Yue-Ling Bai ◽  
Liangliang Zhang ◽  
Daofeng Sun ◽  
Jianhui Fang ◽  
...  

Two new rht-type anionic MOFs revealed a rapid and selective adsorption of cationic dyes and desorption in saturated NaCl aqueous solution.

2018 ◽  
Vol 47 (37) ◽  
pp. 12979-12983 ◽  
Author(s):  
Ya-Ru Gong ◽  
Wei-Chao Chen ◽  
Liang Zhao ◽  
Kui-Zhan Shao ◽  
Xin-Long Wang ◽  
...  

Two new VMOPs with cuboctahedral geometries were synthesized based on [V6O6(OCH3)9X] (X = VO4 or SO4) and the rigid tridentate carboxylate ligand H3TATB, which present selective adsorption toward cationic dyes in aqueous solution.


2016 ◽  
Vol 362 ◽  
pp. 517-524 ◽  
Author(s):  
Xiaoxia Liu ◽  
Wenpeng Gong ◽  
Jing Luo ◽  
Chentao Zou ◽  
Yun Yang ◽  
...  

RSC Advances ◽  
2021 ◽  
Vol 11 (39) ◽  
pp. 23975-23984
Author(s):  
Xue Yang ◽  
Yixia Ren ◽  
Hongmei Chai ◽  
Xiufang Hou ◽  
Zhixiang Wang ◽  
...  

Four fluorescent 2D Zn-MOFs based on a flexible triangular ligand and linear N-donor ligands are hydrothermally prepared and used to detect nitrobenzene in aqueous solution with high sensitivity, demonstrating their potential as fluorescent sensors.


2021 ◽  
Vol 3 (1) ◽  
Author(s):  
Adedibu C. Tella ◽  
Janet T. Bamgbose ◽  
Vincent O. Adimula ◽  
Mary Omotoso ◽  
Sunday E. Elaigwu ◽  
...  

AbstractThe interaction of eosin B dye from aqueous solution with MIL-100(Fe) and functionalized MIL-100(Fe) metal–organic frameworks (MOFs) is reported in this study. MIL-100(Fe) was prepared and functionalized with thioglycolic acid (TH) and ethylenediammine (ED) separately by incorporating the thiol (–SH) and the amine (–NH2) group of the functionalizing agents into the open metal sites of the MIL-100(Fe) to obtain the acidic (TH-MIL-100) and basic (ED-MIL-100) forms of the MOF respectively. Characterization of the MOFs was done by melting point analysis, elemental analysis, spectroscopic techniques, scanning electron microscopy (SEM), and powdered X-ray diffraction (PXRD) analysis. The adsorption experiments were carried out at different conditions such as pH, adsorbent dosage, contact time, temperature, and initial concentration of the dye to estimate the optimum conditions and the maximum adsorption capacities. Adsorption capacities were observed to increase in the order of ED-MIL-100 < MIL-100 < TH-MIL-100, while the TH-MIL-100 was the most effective in the removal process due to acid–base interaction between the acidic thiol group (–SH) and the alkaline medium of eosin B dye solution. The Langmuir Isotherm was seen to fit well to adsorption data obtained for all three adsorbent materials studied, and adsorption processes followed the pseudo-second order kinetics. This study, therefore, indicates the suitability of functionalization of MIL-100(Fe) towards improving its adsorption capacity.


CrystEngComm ◽  
2021 ◽  
Author(s):  
Yuanshan Xue ◽  
Ji Ding ◽  
Dan-Ling Sun ◽  
Weiwei Cheng ◽  
Xuanrong Chen ◽  
...  

Two families of lanthanide metal-organic frameworks (Ln-MOFs), namely {[Ln2L2(DMF)4]·xDMF·yH2O}n (Ln = Ce(1), Pr(2), Sm(3), Eu(4), Gd(5); x = 0,1; y = 0,1), and {[Ln2L2(H2O)2.5]}n (Ln = Dy(6), Ho(7)), have been...


2019 ◽  
Vol 322 (2) ◽  
pp. 827-838 ◽  
Author(s):  
Guoyuan Yuan ◽  
Yin Tian ◽  
Min Li ◽  
Yang Zeng ◽  
Hong Tu ◽  
...  

2017 ◽  
Vol 46 (47) ◽  
pp. 16381-16386 ◽  
Author(s):  
Chengliang Xiao ◽  
Mark A. Silver ◽  
Shuao Wang

137Cs, 90Sr, 238U, 79Se, and 99Tc sequestrations from aqueous solution by metal–organic framework materials are summarized in this Frontier article.


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