Polymeric nanocomposites for the removal of Acid red 52 dye from aqueous solutions: Synthesis, characterization, kinetic and isotherm studies

Gouthaman, A; Azarudeen, Raja S.; Gnanaprakasam, A.; Sivakumar, V. M.; Thirumarimurugan, M.

doi:10.1016/j.ecoenv.2018.05.011

Cited by 52 publications

(25 citation statements)

References 66 publications

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“…Nanotechnology, as a newly emerging field of science and technology, has overcome limitations through its widespread applications in most research areas . Metal composite nanoparticles (NPs) have demonstrated promising results in strategies employed for the improvement of dye effluent . These materials have progressively gained attention due to their unique physicochemical properties such as dimension, shape, composition, and crystallinity .…”

Section: Introductionmentioning

confidence: 99%

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Sharifpour

Dil

Asfaram

et al. 2019

Applied Organom Chemis

102

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In the present work, Mn‐doped CuO‐NPs‐AC was prepared by a simple method, characterized using various techniques such as FESEM, EDX, XRD, PSD, and pHpzc and finally used for the adsorption of malachite green (MG) and methyl orange (MO) in a number of single and binary solutions. A series of adsorption experiments were conducted to investigate and optimize the influence of various factors (such as different pH, concentration of MG and MO, adsorbent mass, and sonication time) on the simultaneous adsorption of MG and MO using response surface methodology. Under optimal conditions of pH 10, adsorbent dose of 0.02 g, MG concentration of 30 mg L−1, MO concentration of 30 mg L−1, and sonication time of 4.5 min at room temperature, the maximum predicted adsorption was observed to be 100.0%, for both MG and MO, showing that there is a favorable harmony between the experimental data and model predictions. The adsorption isotherm of MO and MG by Mn‐doped CuO‐NPs‐AC could be well clarified by the Langmuir model with maximum adsorption capacity of 320.69 mg g−1 and 290.11 mg g−1 in the single solution and 233.02 mg g−1 and 205.53 mg g−1 in the binary solution by 0.005 g of adsorbent mass for MG and MO, respectively. Kinetic studies also revealed that both MG and MO adsorption were better defined by the pseudo‐second order model for both solutions. In addition, the thermodynamic constant studies disclosed that the adsorption of MG and MO was likely to be influenced by a physisorption mechanism. Eventually, the reusability of the Mn‐doped CuO‐NPs‐AC after six times showed a reduction in the adsorption percentage of MG and MO.

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Section: Introductionmentioning

confidence: 99%

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Sharifpour

Dil

Asfaram

et al. 2019

Applied Organom Chemis

102

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“…There are many techniques for wastewater treatment, for instance, coagulation, electrocoagulation, chlorination, ozonation, flotation, chemical oxidation, filtration, membrane separation, adsorption, and ultrafiltration [10][11][12][13][14][15][16][17] . Among various reported techniques, the adsorption is the most convenient and well-established technique because of high efficiency, simplicity, and minimum energy requirement [18][19][20][21][22][23][24] .…”

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confidence: 99%

Selective and Recyclable Congo Red Dye Adsorption by Spherical Fe3O4 Nanoparticles Functionalized with 1,2,4,5-Benzenetetracarboxylic Acid

Chatterjee

Guha

Krishnan

et al. 2020

Sci Rep

117

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In this study, the new material Fe 3 o 4 @BTCA has been synthesized by immobilization of 1,2,4,5-Benzenetetracarboxylic acid (BTCA) on the surface of Fe 3 o 4 NPs, obtained by co-precipitation of FeCl 3 .6H 2 o and fecl 2 .4H 2 O in the basic conditions. Characterization by P-XRD, FE-SEM, and TEM confirm Fe 3 o 4 has a spherical crystalline structure with an average diameter of 15 nm, which after functionalization with BTCA, increases to 20 nm. Functionalization also enhances the surface area and surface charge of the material, confirmed by BET and zeta potential analyses, respectively. The dye adsorption capacity of Fe 3 o 4 @BTCA has been investigated for three common dyes; Congo red (C.R), Methylene blue (M.B), and Crystal violet (C.V). The adsorption studies show that the material rapidly and selectively adsorbs C.R dye with very high adsorption capacity (630 mg/g), which is attributed to strong H-bonding ability of BTCA with C.R dye as indicated by adsorption mechanism study. The material also shows excellent recyclability without any considerable loss of adsorption capacity. Adsorption isotherm and kinetic studies suggest that the adsorption occurs by the Langmuir adsorption model following pseudo-second-order adsorption kinetics.

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“…PVP is a polymer that is often used as a nonionic surfactant due to its non-toxic, biocompatible and good hydrophilicility (Huang et al, 2017a). Gouthaman et al (2018) used PVP to fully disperse polyaniline and ZnO to prepare an adsorbent that can remove dyes in water. The PVP additive not only allows adsorbent to have a rich pore structure, but also enhances its hydrophilicity.…”

Section: Introductionmentioning

confidence: 99%

Adsorption behaviors on trace Pb²⁺ from water of biochar adsorbents from konjac starch

Peng

2020

Adsorption Science & Technology

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Biochar adsorbents used to treat different heavy metals in water are efficient and low-cost. Appropriate raw materials, excellent selectivity and detailed adsorption mechanism are of important for research on biochar adsorbents. In this work, konjac starch was dispersed in polyvinylpyrrolidone (PVP) solution to prepare different sizes hydrophilic carbon spheres (HCSs) by hydrothermal synthesis method. Adsorption kinetics of the HCSs towards Pb2+ is described perfectly by the pseudo-second-order equation. With the temperature increasing, adsorption thermodynamics are more consistent with the Freundlich model. The calculated ΔG, ΔH and ΔS shows the adsorption of the HCSs towards Pb2+ is a spontaneous, endothermic and entropy increase process. In addition, HCSs have excellent selectivity for the adsorption of Pb2+ and Cu2+. HCSs prepared from konjac starch make full use of natural biomass resources, they can be used as a potential adsorbent material in treatment on heavy metal ion from water field.

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Polymeric nanocomposites for the removal of Acid red 52 dye from aqueous solutions: Synthesis, characterization, kinetic and isotherm studies

Cited by 52 publications

References 66 publications

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Selective and Recyclable Congo Red Dye Adsorption by Spherical Fe3O4 Nanoparticles Functionalized with 1,2,4,5-Benzenetetracarboxylic Acid

Adsorption behaviors on trace Pb²⁺ from water of biochar adsorbents from konjac starch

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Polymeric nanocomposites for the removal of Acid red 52 dye from aqueous solutions: Synthesis, characterization, kinetic and isotherm studies

Cited by 52 publications

References 66 publications

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Optimizing adsorptive removal of malachite green and methyl orange dyes from simulated wastewater by Mn‐doped CuO‐Nanoparticles loaded on activated carbon using CCD‐RSM: Mechanism, regeneration, isotherm, kinetic, and thermodynamic studies

Selective and Recyclable Congo Red Dye Adsorption by Spherical Fe3O4 Nanoparticles Functionalized with 1,2,4,5-Benzenetetracarboxylic Acid

Adsorption behaviors on trace Pb2+ from water of biochar adsorbents from konjac starch

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Adsorption behaviors on trace Pb²⁺ from water of biochar adsorbents from konjac starch