Articles with "anionic dyes" as a keyword



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Adsorption of anionic dyes on a cationic amphiphilic dextran hydrogel: equilibrium, kinetic, and thermodynamic studies

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Published in 2018 at "Colloid and Polymer Science"

DOI: 10.1007/s00396-018-4439-z

Abstract: An amphiphilic cationic dextran hydrogel with quaternary ammonium pendent groups was prepared, and its performances in adsorption of anionic dyes were studied as a function of pH, contact time, initial dye concentration, dye type, and… read more here.

Keywords: anionic dyes; adsorption; hydrogel; adsorption anionic ... See more keywords
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Adsorption of cationic and anionic dyes on montmorillonite in single and mixed wastewater

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Published in 2019 at "Journal of Porous Materials"

DOI: 10.1007/s10934-019-00782-2

Abstract: Montmorillonite was employed as adsorbent to remove cationic and anionic dyes respectively and simultaneously. When the dye present singly, it only had a good effect to cationic dye removal. The experimental data well fitted to… read more here.

Keywords: anionic dyes; adsorption; mixed wastewater; cationic anionic ... See more keywords
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Modification of Radiation Grafted Banana Trunk Fibers for Adsorption of Anionic Dyes

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Published in 2019 at "Fibers and Polymers"

DOI: 10.1007/s12221-019-9409-7

Abstract: Pre-treated banana fiber were successfully grafted with glycidyl methacrylate (GMA) by employing preirradiation grafting technique with the aid of electron beam accelerator. GMA-grafted fibers were subsequently functionalized with trimethylamine (TMA). TMA functionalized fibers were subjected… read more here.

Keywords: anionic dyes; adsorption; fibers adsorption; adsorption anionic ... See more keywords
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Comparative Adsorption of Anionic Dyes (Eriochrome Black T and Congo Red) onto Jojoba Residues: Isotherm, Kinetics and Thermodynamic Studies

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Published in 2020 at "Arabian Journal for Science and Engineering"

DOI: 10.1007/s13369-020-04418-5

Abstract: In this study, jojoba seeds residues are investigated for the removal of anionic dyes (Eriochrome black T and Congo red) from aqueous phase after extraction of oil and defatting (washing with n-hexane) from them. The… read more here.

Keywords: anionic dyes; adsorption; jojoba; jojoba residues ... See more keywords
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Charge-functionalized and mechanically durable composite cryogels from Q-NFC and CS for highly selective removal of anionic dyes.

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Published in 2017 at "Carbohydrate polymers"

DOI: 10.1016/j.carbpol.2017.07.024

Abstract: A composite cryogel was prepared from quaternized nanofibrillated cellulose (Q-NFC) and chitosan (CS) through a combination of freeze-drying and cross-linking with epichlorohydrin. The specific surface area of the composite cryogel was approximately two times that… read more here.

Keywords: anionic dyes; adsorption; removal anionic; composite cryogel ... See more keywords
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Bio-inspired underwater superoleophobic PVDF membranes for highly-efficient simultaneous removal of insoluble emulsified oils and soluble anionic dyes

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Published in 2019 at "Chemical Engineering Journal"

DOI: 10.1016/j.cej.2019.03.089

Abstract: Abstract Exploiting high-performance polymer membranes, which can simultaneously remove of both highly-emulsified oils and water-soluble contaminants such as dyes, is urgently required, yet remains an arduous challenge due to the critical restrictions of single functionality… read more here.

Keywords: pvdf; soluble anionic; membrane; bio inspired ... See more keywords
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Adsorptive removal of anionic dyes by graphene impregnated with MnO2 from aqueous solution

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Published in 2020 at "Colloids and Surfaces A: Physicochemical and Engineering Aspects"

DOI: 10.1016/j.colsurfa.2020.124667

Abstract: Abstract Graphene nanosheet-manganese dioxide (GN-MnO2) composite was synthesized by a microwave-assisted method. The physico-chemical properties of modified graphene (GN) were characterized by different techniques, such as scanning electron microscopes (SEM), Fourier-transform infrared spectrometers (FTIR), X-ray… read more here.

Keywords: anionic dyes; graphene impregnated; graphene; removal anionic ... See more keywords
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High-efficacy adsorption of Cr(VI) and anionic dyes onto β-cyclodextrin/chitosan/hexamethylenetetramine aerogel beads with task-specific, integrated components.

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Published in 2019 at "International journal of biological macromolecules"

DOI: 10.1016/j.ijbiomac.2019.01.139

Abstract: To significantly enhance the adsorption efficacy of hexavalent chromium from aqueous medium, a novel and non-toxic chitosan-based composite beads were prepared by integrating task-specific components into one sample, namely β-cyclodextrin/chitosan/hexamethylenetetramine (β-CD-CS@HMTA). The pseudo- second-order kinetic… read more here.

Keywords: anionic dyes; adsorption; task specific; cyclodextrin chitosan ... See more keywords
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Effectively removal of cationic and anionic dyes by pH-sensitive amphoteric adsorbent derived from agricultural waste-wheat straw

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Published in 2017 at "Journal of The Taiwan Institute of Chemical Engineers"

DOI: 10.1016/j.jtice.2017.04.010

Abstract: Abstract An amphoteric adsorbent (MCA/WS- g -PDMAEMA) derived from the agricultural waste-wheat straw (WS) was successfully synthesized and characterized, its adsorption capacities towards the cationic (methylene blue, MB) and anionic (orange II, ORII and methyl… read more here.

Keywords: anionic dyes; agricultural waste; derived agricultural; amphoteric adsorbent ... See more keywords
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Interaction of anionic dyes with polyaniline implanted cellulose: Organic π-conjugated macromolecules in environmental applications

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Published in 2018 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2018.03.128

Abstract: Abstract The selective response of most of the adsorbents towards a particular dye creates problem in launching them as adsorbent in real field applications. Owing to that we have synthesized organic macromolecule of polyaniline implanted… read more here.

Keywords: anionic dyes; implanted cellulose; dyes polyaniline; polyaniline implanted ... See more keywords
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Thermodynamics and kinetics of cationic/anionic dyes adsorption on cross-linked chitosan

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Published in 2020 at "Journal of Molecular Liquids"

DOI: 10.1016/j.molliq.2020.114507

Abstract: Abstract Cationic (Malachite Green) and anionic dyes (Indigo carmine) removal by cross-linked chitosan (CSglu) beads has been investigated using experimental and computational approaches. The experimental investigations of the adsorption isotherm, kinetics, and thermodynamics information correlated… read more here.

Keywords: anionic dyes; linked chitosan; adsorption; thermodynamics ... See more keywords