Synthesis and strong heavy-metal ion sorption of copolymer microparticles from phenylenediamine and its sulfonate

Huang, Mei‐Rong; Lu, Hong-Jie; Li, Xin‐Gui

doi:10.1039/c2jm32361c

Cited by 123 publications

(77 citation statements)

References 67 publications

(82 reference statements)

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“…Aminecontaining conjugated polymers have been widely investigated as water purification agents during the last two decades [17]. For instance, poly(m-phenylenediamine) (PmPD), as a classic amine-containing conjugated polymer, is regarded as an outstanding adsorbent for pollutants due to its abundant functional groups and powerful coordination ability [18][19][20][21][22].…”

Section: Introductionmentioning

confidence: 99%

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Chai

Wang

Zhang

et al. 2015

Carbon

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Section: Introductionmentioning

confidence: 99%

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Chai

Wang

Zhang

et al. 2015

Carbon

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“…. Noticeably, those aromatic diamine polymers or their derivatives having strong binding ability to heavy metal ions through chelation or redox reaction have been cosidered as cost‐efficient sorbents for Ag(I), Cu(II), Hg(II), Pb(II) and Cr(III) . The tuning of size to nano‐dimension from micro or bulk macro polymers should significantly increase the electroactivity as well as sorbent property for the successful sensing, removal and recovery of heavy metal ions from water.…”

Section: Introductionmentioning

confidence: 99%

Synthesis of poly(o -phenylenediamine) nanofiber with novel structure and properties

Samanta

Roy

Kar

2016

Polym. Adv. Technol.

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The poly(o‐phenylenediamine) (PoPD) was synthesized from the monomer o‐phenylenediamine in various organic solvent medium viz. dimethyl sulfoxide (DMSO), N,N‐dimethyl formamide (DMF) and methanol using ammonium per sulfate as a radical initiator. The structure just like polyaniline derivative with free NH functional groups of the synthesized polymers confirmed by various standard characterizations was explained from the proposed polymerization mechanism. All the synthesized polymers were completely soluble in common organic solvent like DMSO and DMF because of the presence of polar free NH functional groups in its structure. The formation of polymer nanofiber by reverse salting‐out process was confirmed, and the synthesized polymer in DMSO medium was the best polymer in terms of nano‐morphology as well as conducting properties. Interestingly, the average DC conductivity of undoped polymer film was recorded as 2.21 × 10−6 Scm−1 because of induced doping through self charge separation. Moreover, the conductivity of the polymer film was further increased to 1.16 × 10−3 Scm−1 after doping by sulfuric acid. Copyright © 2016 John Wiley & Sons, Ltd.

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“…The mean sorption energies were 9.32 and 8.39 kJ · mol −1 for the sorption of Hg(II) and Zn(II) ions, respectively. These results indicate that the sorption process for the two metal ions onto date pits involves chemisorption with valence forces and sharing or exchange of electrons between the sorbent and metal ions . However, it is noteworthy that for the two metal ions the mean free energies were close to the limit value (especially for Zn(II)).…”

Section: Resultsmentioning

confidence: 79%

Sorption of Hg(II) and Zn(II) ions using lignocellulosic sorbent (date pits)

2017

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This work focuses on the study of Hg(II) and Zn(II) sorption using pristine date pits. The effect of pH is evaluated before considering the influence of both temperature and contact time on sorption efficiency. Sorption isotherms are also determined and modelled using conventional models such as Langmuir, Freundlich, and Dubinin‐Radushkevich (D‐R) equations. The best fit was obtained with the Langmuir equation and maximum sorption capacities reached 38.5 and 52.6 mg · g−1, for Hg(II) and Zn(II), respectively. An analysis of the temperature effect by the Gibbs equation showed that the sorption is exothermic and spontaneous. The mean free energy of sorption (obtained from D‐R equation) confirms that metal binding occurs through a chemical ion‐exchange mechanism. The kinetic profiles can be accurately fitted with the pseudo‐second order rate equation. Complementary analyses (using FTIR spectrometry and SEM‐EDX analysis) confirm that ion‐exchange is the main binding mechanism, though a contribution of surface complexation cannot be neglected.

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Synthesis and strong heavy-metal ion sorption of copolymer microparticles from phenylenediamine and its sulfonate

Cited by 123 publications

References 67 publications

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

A Cu–m-phenylenediamine complex induced route to fabricate poly(m-phenylenediamine)/reduced graphene oxide hydrogel and its adsorption application

Synthesis of poly(o -phenylenediamine) nanofiber with novel structure and properties

Sorption of Hg(II) and Zn(II) ions using lignocellulosic sorbent (date pits)

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