A smart hydrogel carrier for silver nanoparticles: an improved recyclable catalyst with temperature-tuneable catalytic activity for alcohol and olefin oxidation

Maddahzadeh-Darini, Nastaran; Rezheh, Somaieh; Ghorbanloo, Massomeh; Mori, Masami; Yahiro, Hidenori; Mokary-Yazdeli, Tahereh

doi:10.1039/d2nj01855a

Cited by 4 publications

(1 citation statement)

References 79 publications

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“…By increasing the amount of catalyst from 5mg to 10 mg, the conversion increased from 26% to 55%. Nevertheless, the further addition of the catalyst, from 10 mg to 20 mg, led to a reduction in the conversion rate from 55% to 52%, which can be attributed to a decline in the effective collision between the molecules of the catalyst and substrate [34].…”

Section: Oxidation Of Alcohols By P(naamps-co-an)-[mn(tmpyp] and Tbhp...mentioning

confidence: 99%

Oxidation of Alcohols to Carbonyl Compounds Catalyzed by Reusable Manganese Porphyrin under Mild Aqueous Conditions

Sokhandan-Koirim

Ghorbanloo

Mokary-Yazdely

2022

Preprint

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The present study aims to introduce a new catalytic system, namely poly[(2-acrylamido-2-methyl-1-propane sulfonic acid-co-acrylonitrile)-Mn(III) meso tetra(N-methyl-4-pyridyl) porphine briefly called p(NaAMPS-co-AN)‐[Mn(TMPyP)]. Free-radical polymerization at ambient temperature was employed to construct this catalytic system. To prepare this heterogeneous bi-phasic catalyst, poly(NaAMPS-co-AN) was axially grafted onto the metal centers of the MnIII composite. In order to identify the amounts of metals in prepared compound, atomic absorption spectroscopy (AAS) was utilized. The results indicated that p(NaAMPS-co-AN)‐[Mn(TMPyP)] had the potential to efficiently catalyze alcohol oxidation with high selectivity in the solid-liquid biphasic reaction system. Furthermore, the catalytic activities of alcohol oxidation by the reaction-controlled phase transfer catalyst system were compared in the presence of H2O2 and TBHP, as oxidants, in a biphasic environment. It was found that functioning as a nanoreactor, the prepared catalyst system facilitated the oxidation of alcohols in water, leading to the substantial acceleration of catalytic reaction rates. After the completion of the catalytic activity, the catalyst could be separated easily from the reaction media and reused without any activity loss. In effect, the quality of the catalyst remained the same for eight cycles. The excellent performance of p(NaAMPS-co-AN)‐[Mn(TMPyP] is mostly attributed to its macroporous structure which allow for a rapid diffusion of the reactants to the reactive Mn(III) centers. High stability and reusability of catalyst without leaching is may be due to the AN. In fact, p(NaAMPS-co-AN)‐[Mn(TMPyP)] has chemical cross-linker, MBA, and physical cross-linker, AN. In a similar vein, the FT-IR spectra and atomic absorption spectroscopy confirmed the great recyclability, durability, and leaching resistance of the catalyst.

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Section: Oxidation Of Alcohols By P(naamps-co-an)-[mn(tmpyp] and Tbhp...mentioning

confidence: 99%

Oxidation of Alcohols to Carbonyl Compounds Catalyzed by Reusable Manganese Porphyrin under Mild Aqueous Conditions

Sokhandan-Koirim

Ghorbanloo

Mokary-Yazdely

2022

Preprint

Self Cite

View full text Add to dashboard Cite

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Supra-Amphiphilic Porphyrin Based on Thermoresponsive Poly(N-Isopropylacrylamide-co-2-Acrylamido-2-Methylpropane Sulfonic Acid Sodium) Hydrogels: Synthesis, Characterization and Catalytic Applications

Maddahzadeh-Darini

Ghorbanloo

2022

Catal Lett

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Green construction of self-floating polysaccharide-based hydrogels with catalytic activity for efficient organic pollutants reduction

Wen,

Xue,

et al. 2024

International Journal of Biological Macromolecules

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A smart hydrogel carrier for silver nanoparticles: an improved recyclable catalyst with temperature-tuneable catalytic activity for alcohol and olefin oxidation

Cited by 4 publications

References 79 publications

Oxidation of Alcohols to Carbonyl Compounds Catalyzed by Reusable Manganese Porphyrin under Mild Aqueous Conditions

Oxidation of Alcohols to Carbonyl Compounds Catalyzed by Reusable Manganese Porphyrin under Mild Aqueous Conditions

Supra-Amphiphilic Porphyrin Based on Thermoresponsive Poly(N-Isopropylacrylamide-co-2-Acrylamido-2-Methylpropane Sulfonic Acid Sodium) Hydrogels: Synthesis, Characterization and Catalytic Applications

Green construction of self-floating polysaccharide-based hydrogels with catalytic activity for efficient organic pollutants reduction

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