Journal ArticleDOI
Application of magnetic chitosan composites for the removal of toxic metal and dyes from aqueous solutions
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TLDR
This review outlines the preparation of MCCs as well as methods to characterize these materials using FTIR, XRD, TGA and other microscopy-based techniques to show their advantages as adsorbents in the treatment of polluted aqueous solutions.About:
This article is published in Advances in Colloid and Interface Science.The article was published on 2013-12-01. It has received 579 citations till now.read more
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Ion cum molecularly dual imprinted polymer for simultaneous removal of cadmium and salicylic acid
TL;DR: The presence of intramolecular hydrogen bonding in SA, stability of the template‐monomer complexes (CTS‐SA and CTS‐4HBA), and the involvement of the hydroxyl groups on DMIP for the uptake of SA has been supported by molecular modeling studies using Gaussian 03 software.
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Silver ferrite–graphene nanocomposite and its good photocatalytic performance in air and visible light for organic dye removal
TL;DR: The photogenerated electrons of AgFeO2 can transfer easily from the conduction band to the reduced graphene oxide, efficiently preventing the direct recombination of electrons and holes as discussed by the authors.
Journal ArticleDOI
Effect of polymeric matrix on the adsorption of reactive dye by anion-exchange resins
TL;DR: In this article, two ion exchange resins with similar properties, namely, polystyrene anion exchange resin SAER and polyacrylic anion-exchange resin AAER, were applied for orange G removal to investigate the effect of polymeric structure on adsorption.
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Process Optimization and Adsorptive Mechanism for Reactive Blue 19 Dye by Magnetic Crosslinked Chitosan/MgO/Fe3O4 Biocomposite
Ali H. Jawad,S. Rangabhashiyam,Ahmed Saud Abdulhameed,Syed Shatir A. Syed-Hassan,Zeid A. ALOthman,Lee D. Wilson +5 more
Abstract:
A new biocomposite magnetic crosslinked glutaraldehyde-chitosan/MgO/Fe3O4 (CTS-GL/MgO/Fe3O4) adsorbent was prepared and applied for the removal of reactive blue 19 (RB 19) synthetic textile dye. The prepared CTS-GL/MgO/Fe3O4 was subjected to the several instrumental characterizations such as XRD, FTIR, SEM-EDX, pH-potentiometric titration, and pHpzc analyses. The influence of the input adsorption parameters such as A: CTS-GL/MgO/Fe3O4 dosage, B: initial solution pH, C: process temperature, and D: contact time on RB 19 removal efficiency was statistically optimized using Box-Behnken design (BBD). The analysis of variance (ANOVA) indicates the presence of five significant statistical interactions between input adsorption parameters i.e. (AB, AC, AD, BC, and BD). The adsorption kinetic and equilibrium study reveals a good to the pseudo-second-order model, and multilayer adsorption as proven by Freundlich isotherm model, respectively. The maximum adsorption capacity of CTS-GL/MgO/Fe3O4 towards RB19 was found to be 193.2 mg/g at 45 ºC. This work highlights the development of feasible and recoverable magnetic biocompsite adsorbent with desirable adsorption capacity towards textile dyes with good separation ability by using an external magnetic field.
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Effective adsorption of U(VI) from aqueous solution using magnetic chitosan nanoparticles grafted with maleic anhydride: equilibrium, kinetic and thermodynamic studies
TL;DR: In this article, the in situ formed magnetite nanoparticles were encapsulated by maleated chitosan to synthesize a novel magnetic nano-sorbent (MCN-MA) for the effective sorption of uranium.
References
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Adsorption of Gases in Multimolecular Layers
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The constitution and fundamental properties of solids and liquids. part i. solids.
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Kinetics of Adsorption on Carbon from Solution
Walter J. Weber,J. C. Morris +1 more
TL;DR: In this paper, it was shown that the rate of adsorption of persistent organic compounds on granular carbon is quite low and the rate is partially a function of the pore size distribution of the adsorbent, of the molecular size and configuration of the solute, and of the relative electrokinetic properties of adsorbate and adsorbents.