Carboxylic Acid-Terminated Carbon Nanoflakes for Selective Adsorption of Water-Soluble Cationic Dyes

2021 ◽  
Author(s):  
Chumki Dalal ◽  
Anjali Kumari Garg ◽  
Sumit Kumar Sonkar
Keyword(s):  
Carboxylic Acid ◽  
Selective Adsorption ◽  
Water Soluble ◽  
Cationic Dyes ◽  
Adsorption Of Water ◽  
Carbon Nanoflakes

MOFs containing a linear bis-pyridyl-tris-amide and angular carboxylates: exploration of proton conductivity, water vapor and dye sorptions

2019 ◽  
Vol 6 (1) ◽  
pp. 184-191 ◽  
Author(s):  
Satyanarayana K. Konavarapu ◽  
Anindita Goswami ◽  
Anaparthi Ganesh Kumar ◽  
Susanta Banerjee ◽  
Kumar Biradha
Keyword(s):  
Methylene Blue ◽  
Water Vapor ◽  
Proton Conductivity ◽  
Crystal Violet ◽  
Selective Adsorption ◽  
Cationic Dyes ◽  
Adsorption Of Water ◽  
Conductivity Water ◽  
Adsorption Of Water Vapor

Four new MOFs were shown to have appreciable proton conductivities, selective adsorption of water vapor over nitrogen and a tendency to selectively adsorb cationic dyes such as methylene blue and crystal violet.

Structural tuning of Zn(ii)-MOFs based on pyrazole functionalized carboxylic acid ligands for organic dye adsorption

CrystEngComm ◽  
2020 ◽  
Vol 22 (36) ◽  
pp. 5941-5945 ◽  
Author(s):  
Xiao-Ting Liu ◽  
Si-Si Chen ◽  
Si-Miao Li ◽  
Hong-Xiang Nie ◽  
Yao-Qing Feng ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Selective Adsorption ◽  
Dye Adsorption ◽  
Organic Dye ◽  
Cationic Dyes

Two Zn(ii)-MOFs based on pyrazole functionalized carboxylic ligands have been constructed, which exhibit favorable selective adsorption of organic cationic dyes.

scholarly journals Selective Adsorption of Water-soluble Ionic Compounds by an Interval Immobilization Technique Based on Molecular Imprinting

2008 ◽  
Vol 24 (12) ◽  
pp. 1633-1636 ◽  
Author(s):  
Takuya KUBO ◽  
Yuichi TOMINAGA ◽  
Fuminori WATANABE ◽  
Kunimitsu KAYA ◽  
Ken HOSOYA
Keyword(s):  
Molecular Imprinting ◽  
Selective Adsorption ◽  
Water Soluble ◽  
Ionic Compounds ◽  
Adsorption Of Water

Ni(II) based one dimensional coordination polymers for environmental remediation: Design, topology, magnetism and selective adsorption of cationic dyes

CrystEngComm ◽  
2021 ◽  
Author(s):  
M. Shahwaz Ahmad ◽  
Mohd Khalid ◽  
M. Shahnawaz Khan ◽  
M. Shahid ◽  
Musheer Ahmad
Keyword(s):  
Carboxylic Acid ◽  
Coordination Polymers ◽  
Environmental Remediation ◽  
Selective Adsorption ◽  
Cationic Dyes ◽  
Solvothermal Reaction ◽  
One Dimensional ◽  
Remediation Design

Herein, two Ni(II)-based one-dimensional (1D) coordination polymers (CPs), namely, [Ni(Hpdc)(H2O)(H2O)]]n (CP-1) and [Ni(pyc)2(H2O)]n (CP-2), where H3pdc = 3,5-pyrazoledicarboxylic acid and Hpyc = pyraziene-2-carboxylic acid were successfully synthesized under solvothermal reaction...

scholarly journals The formation and constitution of crystals of lead salts containing water-soluble colloid

1935 ◽  
Vol 235 (749) ◽  
pp. 125-164 ◽  
Keyword(s):  
Selective Adsorption ◽  
Water Soluble ◽  
Lead Salts ◽  
The Subject ◽  
As If ◽  
Saturated Solutions

The influence of small amounts of dissolved foreign substances on the growth of crystals from saturated solutions has been the subject of much investigation. Usually the added substances have been electrolytes. Dyestuffs have not been neglected, but with some few exceptions comparatively little attention has been given to the effect of non-ionized water-soluble electrolytes such as gelatine or dextrine. As a rule, the presence of the foreign substances is found to cause the crystals to assume a different habit. Whenever this occurs the absorption must have occurred on certain crystal-faces in preference to others, but, although the added material is active by virtue of its close attachment to such faces, it is rarely found to be incorporated into the solid to any great extent. The growing crystals appear to reject the impurity—thrusting it outwards as the growth advances. The action of water-soluble colloids on the halides and certain other salts of lead is exceptional in several ways. Although when such colloids are present in small concentrations one can generally observe a modification of habit, at higher concentrations there may be little selective adsorption, and the result may be a rounded crystal on which no plane faces at all can be distinguished, as if the forces by which atoms are attracted to the structure had been equalized in every direction.

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.

Water-soluble copper(II) complexes with 4,5-dichloro-isothiazole-3-carboxylic acid and heterocyclic N-donor ligands: Synthesis, crystal structures, cytotoxicity, and DNA binding study

2020 ◽  
Vol 510 ◽  
pp. 119778 ◽  
Author(s):  
Julia A. Eremina ◽  
Elizaveta V. Lider ◽  
Taisiya S. Sukhikh ◽  
Lyubov S. Klyushova ◽  
Maria L. Perepechaeva ◽  
...  
Keyword(s):  
Carboxylic Acid ◽  
Dna Binding ◽  
Crystal Structures ◽  
Water Soluble ◽  
Binding Study ◽  
Donor Ligands

scholarly journals Optimization of Mordenite Membranes Using Sucrose Precursor for Pervaporation of Water-Ethanol Mixtures

Membranes ◽  
2021 ◽  
Vol 11 (3) ◽  
pp. 160
Author(s):  
Abdulaziz A. Alomair ◽  
Yousef Alqaheem
Keyword(s):  
Pyrolysis Temperature ◽  
Operating Temperature ◽  
Selective Adsorption ◽  
Sucrose Concentration ◽  
Low Cost ◽  
Water Flux ◽  
Separation Performance ◽  
Carbon Membranes ◽  
Adsorption Of Water ◽  
High Separation

Post-treated mordenite membranes were prepared using sucrose (C12H22O11) as a carbon precursor to block any pinholes and defects in the zeolite layer. The pervaporation (PV) process was used to separate ethanol from the water. The effects of the sucrose concentration and the pyrolysis temperature (650–850 °C) were investigated, and the resulting high separation performance compared to those post/pre-treated membranes was reported in the literature. In this study, mordenite carbon membranes yielded a water/ethanol separation factor of 990.37 at a water flux of 9.10 g/m2h. The influence of the operating temperature on the performance of the membrane also was considered. It was concluded that the selective adsorption of water through zeolite pores was achieved. The entire preparation procedure was achieved using a rapid, low-cost preparation process.

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