Nanoscale zeolitic imidazolate framework-8 as a selective adsorbent for theophylline over caffeine and diprophylline

RSC Advances ◽  
2014 ◽  
Vol 4 (62) ◽  
pp. 33047-33054 ◽  
Author(s):  
Fang Yan ◽  
Zhong-Ying Liu ◽  
Jin-Long Chen ◽  
Xiao-Yan Sun ◽  
Xiao-Juan Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Selective Adsorption ◽  
Zeolitic Imidazolate Framework ◽  
Selective Adsorbent

Exploration of zeolitic imidazolate framework-8 as an adsorbent for selective adsorption of theophylline over caffeine and diprophylline in aqueous solution.

scholarly journals Sulfobetaine Cryogels for Preferential Adsorption of Methyl Orange from Mixed Dye Solutions

Polymers ◽  
2021 ◽  
Vol 13 (2) ◽  
pp. 208
Author(s):  
Ramona B. J. Ihlenburg ◽  
Anne-Catherine Lehnen ◽  
Joachim Koetz ◽  
Andreas Taubert
Keyword(s):  
Aqueous Solution ◽  
Methylene Blue ◽  
Methyl Orange ◽  
Dye Removal ◽  
Selective Adsorption ◽  
Water Soluble ◽  
Organic Substances ◽  
Preferential Adsorption ◽  
Dimethyl Ammonium ◽  
Dye Solutions

New cryogels for selective dye removal from aqueous solution were prepared by free radical polymerization from the highly water-soluble crosslinker N,N,N’,N’-tetramethyl-N,N’-bis(2-ethylmethacrylate)-propyl-1,3-diammonium dibromide and the sulfobetaine monomer 2-(N-3-sulfopropyl-N,N-dimethyl ammonium)ethyl methacrylate. The resulting white and opaque cryogels have micrometer sized pores with a smaller substructure. They adsorb methyl orange (MO) but not methylene blue (MB) from aqueous solution. Mixtures of MO and MB can be separated through selective adsorption of the MO to the cryogels while the MB remains in solution. The resulting cryogels are thus candidates for the removal of hazardous organic substances, as exemplified by MO and MB, from water. Clearly, it is possible that the cryogels are also potentially interesting for removal of other compounds such as pharmaceuticals or pesticides, but this must be investigated further.

Fabrication of cellulosic paper containing zeolitic imidazolate framework and its application in removal of anionic dye from aqueous solution

BioResources ◽  
2021 ◽  
Vol 16 (2) ◽  
pp. 2644-2654
Author(s):  
Zicheng Chen ◽  
Huiwen Zhang ◽  
Xiangyang He ◽  
Guangyuan Fan ◽  
Xiaosong Li ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Functional Materials ◽  
Anionic Dyes ◽  
Zeolitic Imidazolate Framework ◽  
Cellulosic Fibers ◽  
Simple Filtration ◽  
Metal Organic ◽  
Potential Strategy ◽  
Cellulosic Paper

The combination of metal organic frameworks (MOFs) with other functional materials is a potential strategy for the preparation of advanced MOF-based materials. In this study, a simple approach is reported for the fabrication of cellulosic paper containing zeolitic imidazolate framework (ZIF-8) through in-situ loading in the papermaking process. The results showed that the ZIF-8 was evenly distributed in the paper substrate owing to the multi-layers structure of the cellulosic fibers, although the loading of the ZIF-8 particles on the single cellulosic fiber was nonuniform. The as-prepared ZIF-8 composites can be used as a highly efficient adsorbent material for anionic dyes in aqueous solution thanks to the positive charge on the surface of the ZIF-8 particles. More than 92% of the methyl orange (MO-) dye in the aqueous solution was rapidly removed through a simple filtration process using the ZIF-8 composite cellulosic paper (hand-sheets made in lab) when the content of ZIF-8 in cellulosic paper was high as 25.1%. In addition, the ZIF-8 composite paper had acceptable flexibility and could be reused at least 4 cycles by washing out the adsorbed dye.

Synthesis of amine-functionalized ZIF-8 with 3-amino-1,2,4-triazole by postsynthetic modification for efficient CO2-selective adsorbents and beyond

2018 ◽  
Vol 6 (39) ◽  
pp. 18912-18919 ◽  
Author(s):  
Kie Yong Cho ◽  
Heseong An ◽  
Xuan Huy Do ◽  
Keunsu Choi ◽  
Ho Gyu Yoon ◽  
...  
Keyword(s):  
Selective Adsorption ◽  
Chemical Modifications ◽  
Zeolitic Imidazolate Framework ◽  
Chemical Functionalization ◽  
Postsynthetic Modification ◽  
Amine Functionalized ◽  
Gate Size

The facile tuning of the gate size and the chemical functionalization of zeolitic imidazolate framework-8 (ZIF-8) were achieved by the postsynthetic modification with 3-amino-1,2,4-triazole. The resulting amine functionalized ZIF-8 particles enabled CO2 selective adsorption and further chemical modifications.

Functionalized polyoxometalate-based metal–organic cuboctahedra for selective adsorption toward cationic dyes in 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 ◽  
...  
Keyword(s):  
Aqueous Solution ◽  
Selective Adsorption ◽  
Cationic Dyes ◽  
Carboxylate Ligand ◽  
Metal Organic

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.

Recognition and selective adsorption of pesticides by superparamagnetic molecularly imprinted polymer nanospheres

RSC Advances ◽  
2016 ◽  
Vol 6 (55) ◽  
pp. 49401-49410 ◽  
Author(s):  
Arameh Masoumi ◽  
Khadijeh Hemmati ◽  
Mousa Ghaemy
Keyword(s):  
Aqueous Solution ◽  
Molecularly Imprinted Polymer ◽  
Selective Adsorption ◽  
Imprinted Polymer ◽  
Molecularly Imprinted ◽  
Polymer Nanospheres

Selective adsorption of pesticides phosalone, diazinon, and chlorpyrifos from aqueous solution by superparamagnetic molecularly imprinted polymer nanosphere.

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