Highly efficient adsorbents of poly(o-phenylenediamine) solid and hollow sub-microspheres towards lead ions: A comparative study

Han, Jie; Dai, Jie; Guo, Rong

doi:10.1016/j.jcis.2011.01.038

Cited by 58 publications

(26 citation statements)

References 52 publications

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“…(2016) [1][2][3][4][5][6][7][8][9][10][11][12] www.deswater.com doi: 10.1080/19443994.2016.1193061 magnetic nanoparticles as an adsorbent [1][2][3][4]. With this in mind, nanomaterials based on polymers not only are able to provide favorable functional groups for various applications but also could decrease the aforementioned problems.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

“…As a diamine derivative of polyaniline, which has higher content of functional groups in conjugated structure and more intriguing multi-functionality among the conjugated polymers, poly phenylenediamine, a cost effective polymer, shows exceptional prospects in such applications as waste-water treatment [8,9]. Furthermore, its effective adsorption performance as an adsorbent in removing heavy metal ions such as lead and azo dyes has made it to be promising adsorption materials as it bears redox properties, powerful chelation ability, and high stability at ambient conditions [9][10][11]. Nevertheless, conductive polymers always have small specific surface areas, which can be improved by its combination with magnetic nanoparticles.…”

Section: Desalination and Water Treatmentmentioning

confidence: 99%

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Green synthesized Fe3O4 nanoparticles as a magnetic core to prepare poly 1, 4 phenylenediamine nanocomposite: employment for fast adsorption of lead ions and azo dye

Beyki

Shirkhodaie

Karimi

et al. 2016

Desalination and Water Treatment

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Different approaches such as precipitation, combustion, and hydrothermal method are available to prepare Fe 3 O 4 nanoparticles. Respect to other methods, precipitation, especially with one iron source and natural reducing agents is a more green, economic, fast, and simple route for Fe 3 O 4 synthesis. Based on these viewpoints, we have prepared Fe 3 O 4 magnetic nanoparticles via a sonochemistry precipitation method using only one iron source and sugar, which was employed as a reducing agent. The combination of these prepared magnetic nanoparticles with polyphenylenediamine via an emulsion polymerization resulted in a magnetic polymer nanocomposite. The prepared magnetic material was characterized by Fourier transform infrared (FT-IR), scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray powder diffraction (XRD), and vibration sample magnetometer techniques. The magnetic nanocomposite was then successfully employed as an adsorbent in the removal of Pb 2+ ions and Direct red 81 (DR-81) from single and binary solution. The results demonstrated that the maximum adsorption was obtained within 5 min at pH 4.0 and also the adsorption processes of Pb 2+ and DR-81 both were well fitted by pseudo-second-order kinetic model. The experimental data were analyzed by the Langmuir and Freundlich adsorption models. Freundlich model provided the best correlation of the experimental data for dye but lead adsorption well fitted with Langmuir model. Moreover, the maximum capacity of polymer nanocomposite was found to be 144.92 and 370.37 mg g −1 for DR-81 and Pb 2+ , respectively.

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Section: Desalination and Water Treatmentmentioning

confidence: 99%

Section: Desalination and Water Treatmentmentioning

confidence: 99%

Green synthesized Fe3O4 nanoparticles as a magnetic core to prepare poly 1, 4 phenylenediamine nanocomposite: employment for fast adsorption of lead ions and azo dye

Beyki

Shirkhodaie

Karimi

et al. 2016

Desalination and Water Treatment

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“…Han et al [17] found that hollow submicrospheres of poly(o-phenylenediamine) (PoPD) showed enhanced adsorptivity and adsorption capacity toward Pb 2+ when compared to solid PoPD sub-microspheres. The hollow sub-microspheres also showed good adsorptivity for other HMIs, including Hg 2+ , Cd 2+ , and Cu 2+ .…”

Section: Hmis Removal By Adsorptionmentioning

confidence: 99%

Applications of hollow nanomaterials in environmental remediation and monitoring: A review

Zhang

Wang

et al. 2015

Front. Environ. Sci. Eng.

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Hollow nanomaterials have attracted significant attention because of their high chemical and thermal stability, high specific surface area, high porosity, low density, and good biocompatibility. These state-of-the-art nanomaterials have been shown to efficiently adsorb heavy metals, and volatile hazardous substances, photodegrade persistent organic pollutants, and other compounds, and inactivate bacteria. Such properties have enabled the use of these materials for environmental remediation, such as in water/wastewater treatment, soil remediation, air purification, and substance monitoring, etc. Hollow nanomaterials showed higher photocatalytic activity than those without hollow structure owing to their high active surface area, reduced diffusion resistance, and improved accessibility. And, the Doping method could improve the photocatalytic performance of hollow nanomaterials further under visible light. Moreover, the synthetic mechanisms and methods of these materials are important because their size and morphology help to determine their precise properties. This article reviews the environmental applications and potential risks of these materials, in addition to their syntheses. Finally, an outlook into the development of these materials is provided.

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“…Noteworthy, the ν(C=O) peak in the un-functionalised composite is shifted about 35 cm -1 higher indicating that the carbonyl bond is shorter in C=O, most likely because it belongs to the COOC component whereas in the oxidised composite it belongs to the COOH component, which may have resulted from the elimination of the acetate group in EVA. The band at 1 439 cm -1 resulted from the C-O stretching of the carboxylate anion in carboxylic groups and the band at 1 654 cm -1 was attributed to C=O stretching vibration modes in carbonyl groups (Han et al, 2011;Wang et al, 2011;Wei et al, 2011). The spectra show a broad and strong peak at 1 020 cm -1 which was confidently assigned to Si-O adsorption.…”

Section: Ft-ir Analysismentioning

confidence: 99%

“…The Langmuir and Freundlich mathematical models were applied to define and analyse the adsorption isotherm and equilibrium properties of the adsorption of Pb 2+ onto the composites (Han et al, 2011). The equilibrium adsorption capacity (q e ) was calculated from the equilibrium concentration (C e ) using the following equation:…”

Section: Adsorption Isothermsmentioning

confidence: 99%

Comparative study of EVA-Cloisite<sup>®</sup> 20A and heat-treated EVA-Cloisite<sup>®</sup> 20A on heavy-metal adsorption properties

Dlamini¹,

Mishra²,

Mamba³

2012

WSA

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Ethylene vinyl acetate (EVA)/ Cloisite® 20A (C20A) composite fabricated via the melt-blending method was used for the development of a heavy-metal adsorbent through acid and heat treatment. Heat-treated composites were produced at 400°C to 1 000°C in air and N 2 atmospheres. The materials were characterised through TGA, FT-IR, contact angle and Zetasizer. Treating EVA/C20A composites with H 2 SO 4 at 130°C reduced the contact angle from 99.73° to 30.40°. The acid-functionalised composite was tested for the removal of Pb 2+ and an adsorption capacity of 49 mg•g −1 was recorded while the heattreated composite exhibited an adsorption capacity of 153 mg•g −1.

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Highly efficient adsorbents of poly(o-phenylenediamine) solid and hollow sub-microspheres towards lead ions: A comparative study

Cited by 58 publications

References 52 publications

Green synthesized Fe3O4 nanoparticles as a magnetic core to prepare poly 1, 4 phenylenediamine nanocomposite: employment for fast adsorption of lead ions and azo dye

Green synthesized Fe3O4 nanoparticles as a magnetic core to prepare poly 1, 4 phenylenediamine nanocomposite: employment for fast adsorption of lead ions and azo dye

Applications of hollow nanomaterials in environmental remediation and monitoring: A review

Comparative study of EVA-Cloisite<sup>®</sup> 20A and heat-treated EVA-Cloisite<sup>®</sup> 20A on heavy-metal adsorption properties

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