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CN 34-1054/N

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Preparation and adsorption property of poly（acrylic acid）-based polyHIPEs through polymerization of O/W HIPE induced by γ-ray radiation and REDOX system

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https://doi.org/10.3969/j.issn.0253-2778.2020.08.011
  • Received Date: 24 June 2020
  • Accepted Date: 03 August 2020
  • Rev Recd Date: 03 August 2020
  • Publish Date: 31 August 2020
    Abstract

  • Abstract

    Porous poly（acrylic acid）-based polyHIPEs were prepared by the polymerization of oil-in-water high internal phase emulsions （O/W HIPEs） initiated by γ-ray radiation and redox system, respectively. Compared with normal dried gel materials used as hydrogels, polyHIPEs prepared from O/W HIPEs have higher porosity and a more uniform pore structure, and their pore sizes can be adjusted by changing internal phase volume. Observed by scanning electron microscope （SEM）, polyHIPEs obtained by γ-ray radiation polymerization were found to have a more ordered and completly porous structure than those obtained by redox initiation system. The adsorption tests of methylene blue （MB） on different samples showed that compared with those prepared by chemical method, polyHIPEs obtained by radiation method had a faster adsorption rate and a higher saturation adsorption capacity. The sample R-25-48 of γ-ray radiation polymerization for 48 h with an absorption dose of 151.2 kGy could adsorb up to 1175.9 mg of methylene blue per gram in 250 mg/L methylene blue solution, and the sample R-25-8 of radiation polymerization for 8 h with an absorbed dose of 25.2 kGy could absorb a lot of water, up to nearly 120 times its original weight, which means that theγ-ray radiation polymerization process affects the structure and properties of polyHIPE materials. The adsorption isotherms and kinetics models were used to fit the adsorption experimental results of MB on polyHIPEs obtained by γ-ray radiation polymerization. It is found that adsorption isotherm fits the Langmuir model and adsorption kinetics conforms to pseudo-second-order model, which indicates that the adsorption process is dominated by chemisorption with the mechanism of monolayer adsorption.

    Abstract

    Porous poly（acrylic acid）-based polyHIPEs were prepared by the polymerization of oil-in-water high internal phase emulsions （O/W HIPEs） initiated by γ-ray radiation and redox system, respectively. Compared with normal dried gel materials used as hydrogels, polyHIPEs prepared from O/W HIPEs have higher porosity and a more uniform pore structure, and their pore sizes can be adjusted by changing internal phase volume. Observed by scanning electron microscope （SEM）, polyHIPEs obtained by γ-ray radiation polymerization were found to have a more ordered and completly porous structure than those obtained by redox initiation system. The adsorption tests of methylene blue （MB） on different samples showed that compared with those prepared by chemical method, polyHIPEs obtained by radiation method had a faster adsorption rate and a higher saturation adsorption capacity. The sample R-25-48 of γ-ray radiation polymerization for 48 h with an absorption dose of 151.2 kGy could adsorb up to 1175.9 mg of methylene blue per gram in 250 mg/L methylene blue solution, and the sample R-25-8 of radiation polymerization for 8 h with an absorbed dose of 25.2 kGy could absorb a lot of water, up to nearly 120 times its original weight, which means that theγ-ray radiation polymerization process affects the structure and properties of polyHIPE materials. The adsorption isotherms and kinetics models were used to fit the adsorption experimental results of MB on polyHIPEs obtained by γ-ray radiation polymerization. It is found that adsorption isotherm fits the Langmuir model and adsorption kinetics conforms to pseudo-second-order model, which indicates that the adsorption process is dominated by chemisorption with the mechanism of monolayer adsorption.
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    • References(23)
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    MELO B C, PAULINO F A, CARDOSO V A, et al. Cellulose nanowhiskers improve the methylene blue adsorption capacity of chitosan-g-poly(acrylic acid) hydrogel[J]. Carbohydrate Polymers, 2018, 181: 358-367.
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    LIU Y, ZHENG Y, WANG A, et al. Enhanced adsorption of Methylene Blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites[J]. Journal of Environmental Sciences, 2010, 22(4): 486-493.
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    SARKAR N, SAHOO G, SWAIN S K. Reduced graphene oxide decorated superporous polyacrylamide based interpenetrating network hydrogel as dye adsorbent[J]. Materials Chemistry and Physics, 2020, 250: 123022.
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    YAO G, BI W, LIU H, et al. pH-responsive magnetic graphene oxide/poly(NVI-co-AA) hydrogel as an easily recyclable adsorbent for cationic and anionic dyes[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, 588: 124393.
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    WANG W, WANG J, ZHAO Y, et al. High-performance two-dimensional montmorillonite supported-poly(acrylamide-co-acrylic acid) hydrogel for dye removal[J]. Environmental Pollution, 2020, 257: 113574.
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    ZHENG X, ZHENG H, XIONG Z, et al. Novel anionic polyacrylamide-modify-chitosan magnetic composite nanoparticles with excellent adsorption capacity for cationic dyes and pH-independent adsorption capability for metal ions[J]. Chemical Engineering Journal,2020, 392: 123706.
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    LI Y, HOU X, PAN Y, et al. Redox-responsive carboxymethyl cellulose hydrogel for adsorption and controlled release of dye[J]. European Polymer Journal, 2020, 123: 109447.
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    ZHAO Y, ZHAO Z, ZHANG J, et al. Gemini surfactant mediated HIPE template for the preparation of highly porous monolithic chitosan-g-polyacrylamide with promising adsorption performances[J]. European Polymer Journal, 2019, 112: 809-816.)
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    [1]
    BURDICK J A, PRESTWICH G D. Hyaluronicacid hydrogels for biomedical applications[J]. Advanced Materials, 2011, 23(12): H41-56.
    [2]
    CHANG Z, CHEN Y, TANG S, et al. Construction of chitosan/polyacrylate/graphene oxide composite physical hydrogel by semi-dissolution/acidification/sol-gel transition method and its simultaneous cationic and anionic dye adsorption properties[J]. Carbohydrate Polymers, 2020, 229: 115431.
    [3]
    XU C, YAN Y, TAN J, et al. Biodegradablenanoparticles of polyacrylic acid–stabilized amorphous CaCO3 for tunable pH-responsive drug delivery and enhanced tumor inhibition[J]. Advanced Functional Materials, 2019, 29(24): 1808146.
    [4]
    OMIDIAN H, ROCCA J G, PARK K, et al. Advances in superporous hydrogels[J]. Journal of Controlled Release, 2005, 102(1): 3-12.
    [5]
    MIKOS A G, SARAKINOS G, LEITE S M, et al. Laminated three-dimensional biodegradable foams for use in tissue engineering[J]. Biomaterials, 1993, 14(5): 323-330.
    [6]
    CHEN J, PARK H, PARK K, et al. Synthesis of superporous hydrogels: hydrogels with fast swelling and superabsorbent properties[J]. Journal of Biomedical Materials Research, 1999, 44(1): 53-62.
    [7]
    KATO N, SAKAI Y, SHIBATA S, et al. Wide-range control of deswelling time for thermosensitive poly(N-isopropylacrylamide) gel treated by freeze-drying[J]. Macromolecules, 2003, 36(4): 961-963.
    [8]
    BARBY D, HAQ Z. Low density porous cross-linked polymeric materials and their preparation and use as carriers for included liquids: US4522953[P]. 1985-06-11.
    [9]
    AHMED E M. Hydrogel: Preparation, characterization, and applications: A review[J]. Journal of Advanced Research, 2015, 6(2): 105-121.
    [10]
    NHO Y, PARK J, LIM Y, et al. Preparation ofpoly(acrylic acid) hydrogel by radiation crosslinking and its application for mucoadhesives[J]. Polymers, 2014, 6(3): 890-898.
    [11]
    LANGMUIR I.The constitution and fundamental properties of solids and liquids. Part I. Solids[J]. Journal of the American Chemical Society, 1916, 38(11): 2221-2295.
    [12]
    FREUNDLICH, H.M.F. Over theadsorption in solution[J]. The Journal of Physical Chemistry, 1906, 57: 385-370.
    [13]
    HO Y. Citation review of Lagergren kinetic rate equation on adsorption reactions[J]. Scientometrics, 2004, 59(1): 171-177.
    [14]
    HO Y. Review of second-order models for adsorption systems[J]. Journal of Hazardous Materials, 2006, 136(3): 681-689.
    [15]
    LESSA E F, GULARTE M S, GARCIA E S, et al. Orange waste: A valuable carbohydrate source for the development of beads with enhanced adsorption properties for cationic dyes[J]. Carbohydrate Polymers, 2017, 157: 660-668.
    [16]
    MELO B C, PAULINO F A, CARDOSO V A, et al. Cellulose nanowhiskers improve the methylene blue adsorption capacity of chitosan-g-poly(acrylic acid) hydrogel[J]. Carbohydrate Polymers, 2018, 181: 358-367.
    [17]
    LIU Y, ZHENG Y, WANG A, et al. Enhanced adsorption of Methylene Blue from aqueous solution by chitosan-g-poly (acrylic acid)/vermiculite hydrogel composites[J]. Journal of Environmental Sciences, 2010, 22(4): 486-493.
    [18]
    SARKAR N, SAHOO G, SWAIN S K. Reduced graphene oxide decorated superporous polyacrylamide based interpenetrating network hydrogel as dye adsorbent[J]. Materials Chemistry and Physics, 2020, 250: 123022.
    [19]
    YAO G, BI W, LIU H, et al. pH-responsive magnetic graphene oxide/poly(NVI-co-AA) hydrogel as an easily recyclable adsorbent for cationic and anionic dyes[J]. Colloids and Surfaces A: Physicochemical and Engineering Aspects, 2020, 588: 124393.
    [20]
    WANG W, WANG J, ZHAO Y, et al. High-performance two-dimensional montmorillonite supported-poly(acrylamide-co-acrylic acid) hydrogel for dye removal[J]. Environmental Pollution, 2020, 257: 113574.
    [21]
    ZHENG X, ZHENG H, XIONG Z, et al. Novel anionic polyacrylamide-modify-chitosan magnetic composite nanoparticles with excellent adsorption capacity for cationic dyes and pH-independent adsorption capability for metal ions[J]. Chemical Engineering Journal,2020, 392: 123706.
    [22]
    LI Y, HOU X, PAN Y, et al. Redox-responsive carboxymethyl cellulose hydrogel for adsorption and controlled release of dye[J]. European Polymer Journal, 2020, 123: 109447.
    [23]
    ZHAO Y, ZHAO Z, ZHANG J, et al. Gemini surfactant mediated HIPE template for the preparation of highly porous monolithic chitosan-g-polyacrylamide with promising adsorption performances[J]. European Polymer Journal, 2019, 112: 809-816.)
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