Poly(triethylene glycol methyl ether methacrylate) hydrogel as a carrier of phosphotungstic acid for acid catalytic reaction in water

Zhu, Jun‐Jie; Gotoh, Takehiko; Nakai, Satoshi; Tsunoji, Nao; Sadakane, Masahiro

doi:10.1039/d1ma00278c

Cited by 2 publications

(2 citation statements)

References 38 publications

(30 reference statements)

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“…Zhang et al (2018) reported Fe 3 O 4 nanoparticle-embedded porous hydrogel beads as catalysts for the Fenton reaction of methyl orange [31]. Zhu et al (2021) reported poly(triethylene glycol methyl ether methacrylate) hydrogels as carriers of phosphotungstic acid for acid catalytic reactions in water [122]. Tokuyama et al (2022) developed TiO 2 nanoparticle-loaded poly(NIPA) fibers for the adsorption and photocatalytic degradation of organic pollutants in aquatic media [123].…”

Section: Reaction Fieldmentioning

confidence: 99%

Hydrogel Adsorbents for the Removal of Hazardous Pollutants—Requirements and Available Functions as Adsorbent

Seida

Tokuyama

2022

Gels

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Over the last few decades, various adsorption functions of polymer hydrogels for the removal of hazardous pollutants have been developed. The performance of hydrogel adsorbents depends on the constituents of the gels and the functions produced by the polymer networks of the gels. Research on hydrogels utilizing the characteristic functions of polymer networks has increased over the last decade. The functions of polymer networks are key to the development of advanced adsorbents for the removal of various pollutants. No review has discussed hydrogel adsorbents from the perspective of the roles and functions of polymer networks in hydrogels. This paper briefly reviews the basic requirements of adsorbents and the general characteristics of hydrogels as adsorbents. Thereafter, hydrogels are reviewed on the basis of the roles and functions of the polymer networks in them for the removal of hazardous pollutants by introducing studies published over the last decade. The application of hydrogels as adsorbents for the removal of hazardous pollutants is discussed as well.

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Section: Reaction Fieldmentioning

confidence: 99%

Hydrogel Adsorbents for the Removal of Hazardous Pollutants—Requirements and Available Functions as Adsorbent

Seida

Tokuyama

2022

Gels

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“…Several studies have shown that POM /peptide gels and chitosan- POM hydrogels have significant underwater adhesive applications with self-healing, thermos-responsive, and antibacterial properties. The composite hydrogels made up of poly(triethylene glycol methyl ethermethacrylate) have been successfully used to support tungsten-based POM as an acid catalyst for the hydrolysis of ethyl acetate having low leaching characteristics in water and significant efficient catalysis. Moreover, POM s and hydrogels synthesized through the coassembly of basic amino acids have shown significant photothermal and photochromic properties .…”

Section: Introductionmentioning

confidence: 99%

Multifunctional Chitosan–Polyoxometalate-Based Hydrogel Beads for UV Light Detection, Inkless Erasable Printing, Heterogenous Catalysis, and Antibacterial Applications

Shaheen,

Kour,

Tak

et al. 2024

ACS Appl. Eng. Mater.

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In the present study, we report the synthesis of two different Kegging-type polyoxometalates (POMs), ammonium heptamolybdate (AHM) and phosphotungstic acid (PWA), loaded hydrogel beads formed from chitosan (Chi), chitosan/methylcellulose (Chi/MC) and chitosan/ gelatin (Chi/Gel). The addition of negatively charged POMs results in cross-linking between positively charged chitosan chains through electrostatic attraction. Fourier transform infrared spectroscopy, scanning electron microscopy, and thermal gravimetric analysis were used to characterize the as-prepared hydrogel beads. Rheological measurements provided the mechanical and self-healing properties. Swelling properties of the as-prepared hydrogels were determined at pH 6.8, showing a maximum swellabilty of around 4000% in the case of chitosan/gelatin-PWA composite hydrogel. The hydrogels showed low cytotoxicity on HeLa cancer cells but became significant at higher dose levels. The embedded POMs within the biopolymer hydrogel beads had a significant enhancement of their antibacterial action against Gram-negative bacteria Escherichia coli and Gram-positive bacteria Staphylococcus aureus. The hydrogel beads containing AHM showed reversible photochromic properties with rapid UV detection and inkless erasable printing properties. The hydrogel beads had a significant catalytic effect on the reaction of o-phenylenediamine and aldehydes employing hydrogen peroxide as an oxidant under ultrasound irradiation at room temperature. These results show that the POM-hydrogel (as-prepared) beads had significant potential as functional soft materials in different application areas like catalysis, photochromism, UV sensing, and the development of antibacterial soft systems.

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Poly(triethylene glycol methyl ether methacrylate) hydrogel as a carrier of phosphotungstic acid for acid catalytic reaction in water

Abstract: An H3PW12O40-polymer composite was synthesized from a mixture of triethylene glycol methyl ether metacrylate monomer, triethylene glycol dimethacrylate crosslinker, and H3PW12O40. The heteropoly acid molecules were trapped in the hydrogel...

Cited by 2 publications

References 38 publications

Hydrogel Adsorbents for the Removal of Hazardous Pollutants—Requirements and Available Functions as Adsorbent

Hydrogel Adsorbents for the Removal of Hazardous Pollutants—Requirements and Available Functions as Adsorbent

Multifunctional Chitosan–Polyoxometalate-Based Hydrogel Beads for UV Light Detection, Inkless Erasable Printing, Heterogenous Catalysis, and Antibacterial Applications

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