The oxidation of hydroquinone catalysed by Cu(II) ions immobilized on acrylic resins. The influence of ionic liquid

Jakubiak, Anna; Owsik, Izabela; Kolarz, Bożena N.

doi:10.1016/j.reactfunctpolym.2004.10.006

Cited by 21 publications

(16 citation statements)

References 19 publications

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“…The oxidation of hydroquinone [H 2 Q] to p-benzoquinone was investigated over Cu(II) ions immobilized on resins in presence of H 2 O 2 [32,33]. The resin used was a terpolymer of acrylonitrile, vinyl acetate and divinylbenzene obtained by suspension polymerization.…”

Section: Metal-exchanged Resinsmentioning

confidence: 99%

Heterogeneous catalytic degradation of phenolic substrates: Catalysts activity

Liotta

Gruttadauria

Carlo³

et al. 2009

Journal of Hazardous Materials

366

162

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Section: Metal-exchanged Resinsmentioning

confidence: 99%

Heterogeneous catalytic degradation of phenolic substrates: Catalysts activity

Liotta

Gruttadauria

Carlo³

et al. 2009

Journal of Hazardous Materials

366

162

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“…Separation by adsorption is considered an effective and cost efficient method for heavy metal treatment. The adsorption by cross-linked polymers possesses illustrated is very easy to manipulate by design and experimentally due to its ability for regeneration [5][6][7][8][9][10][11][12]. Adsorption is a solid method for the removal of low concentrations of organic compounds from large volumes of potable water, process effluents, wastewater and aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Removal of Orange 2G Dye from Aqueous Solutions Using TiO2-Based Nanoparticles: Isotherm and Kinetic Studies

Al-Arfaj¹,

Alakhras²,

Alabbad³

et al. 2018

Asian J. Chem.

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In the current study, the removal of Orange 2G dye founded in aqueous solutions using titanium dioxide-based nanoparticles has been investigated. Titanium dioxide nanoparticles were successfully prepared using tetrabutyl ammonium bromide (TTAB) as a surfactant by sol-gel method and characterized by X-ray diffraction, BET surface area, IR and TEM spectroscopy. The experimental data is most fitting with Freundlich isotherm model indicating heterogeneity of sorbent surface. Langmuir data revealed that the maximum removal capacity of Orange 2G equals to 85.47 mg g -1 . Kinetic studies disclosed that intraparticle diffusion is not the only rate-determining step and the removal process is organized by a chemical reaction as well.

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“…10 Lenka and coworkers [11][12][13] reported the ion-exchange properties of 2,4-dinitrophenylhydrazone of 2-hydroxyacetophenone/formaldehyde resin, semicarbazone, and oximes of 2-hydroxyacetophenone-substituted benzoic acid/ formaldehyde. [11][12][13] In the literature, few resins containing guanidine functional groups have been reported; 14,15 they play an important role as a complexing agent, an ion exchanger, and so on. Guanidine is also used as an accelerator and increases the ultimate strength of a material, 16 whereas biphenolcontaining polymers exhibit renowned applications in optical data storage and heat-and fire-resistant properties.…”

Section: Introductionmentioning

confidence: 99%

Resin‐V: Synthesis and physicochemical studies of a biphenol–guanidine–formaldehyde terpolymer resin

Jadhao

Kumar

Paliwal

et al. 2010

J of Applied Polymer Sci

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A terpolymer resin was synthesized by the condensation of 2,2 0 -dihydroxybiphenyl with guanidine and formaldehyde in the presence of 2M HCl as a catalyst. The resin obtained was characterized on the basis of elemental analysis, infrared spectroscopy, NMR spectroscopy, ultraviolet-visible spectroscopy, and thermogravimetric analysis/differential thermal analysis. The number-average molecular weight was determined by nonaqueous conductometric titration. A thermal study of the resin was carried out to determine its mode of decomposition, activation energy, order of reaction, frequency factor, entropy change, free energy, and apparent entropy change. The FreemanCarroll and Sharp-Wentworth methods were applied for the calculation of the kinetic parameters, and the data from the Freeman-Carroll method were used to determine various thermodynamic parameters. The chelation ion-exchange properties of this resin were studied for Fe 3þ , Cu 2þ , Ni 2þ , Co 2þ , Zn 2þ , Cd 2þ , and Pb 2þ ions. A batch equilibrium method was used in the study of the selectivity of the metalion uptake that involved the measurements of the distribution of a given metal ion between the polymer sample and a solution containing the metal ion. The study was carried out over a wide pH range and in media of various ionic strengths. The terpolymer showed a higher selectivity for Fe 3þ ions than for the other metal ions in this study.

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The oxidation of hydroquinone catalysed by Cu(II) ions immobilized on acrylic resins. The influence of ionic liquid

Cited by 21 publications

References 19 publications

Heterogeneous catalytic degradation of phenolic substrates: Catalysts activity

Heterogeneous catalytic degradation of phenolic substrates: Catalysts activity

Removal of Orange 2G Dye from Aqueous Solutions Using TiO2-Based Nanoparticles: Isotherm and Kinetic Studies

Resin‐V: Synthesis and physicochemical studies of a biphenol–guanidine–formaldehyde terpolymer resin

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