Novel photoanode based on hierarchically structured Ti-P double oxide

Novel photoanode based on hierarchically structured Ti-P double oxide

Автор: Mikhailov M.S., Knyazeva E.A., Abramyan A.A., Korina E.A., Morozov R.S., Avdin V.V., Bolshakov O.I.

Журнал: Вестник Южно-Уральского государственного университета. Серия: Химия @vestnik-susu-chemistry

Рубрика: Физическая химия

Статья в выпуске: 2 т.15, 2023 года.

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The study of trialkylborane as a component of the initiating system with oxygen was carried out using the example of graft polymerization of alkyl(meth)acrylate vinyl butyl ether copolymer units on pectin polysaccharide. The amine complex triethylborane-hexamethylenediamine was introduced into a boiling mixture of an aqueous solution of pectin in vinyl butyl ether, after which a solution of the active monomer, alkyl(meth)acrylate, containing methacrylic acid, was introduced by the compensation method to isolate triethylborane from the complex. As a result of synthesis from a mixture containing butyl acrylate, three immiscible parts were formed: organic, aqueous, and between them a “sponge” that did not dissolve in any of the phases. In the case of methyl methacrylate, only two parts were formed in the mixture: organic and aqueous. Water-soluble and organic polymers were dried under vacuum conditions to constant weight at T = 20-25 °C. Gravimetric analysis showed that the “sponge” was a mixture of water-soluble and organic polymers at 50:50 ratio. To do this, the dried polymers were dissolved alternately in water and vinyl butyl ether. Graft copolymers pectin-methyl methacrylate-vinyl butyl ether and pectin-butyl acrylate-vinyl butyl ether were isolated from the aqueous phase of the synthesized systems, in relation to the introduced acrylate. In comparison with the original pectin, the molecular weight of the water-soluble fraction increased significantly. Comparison of the IR spectrum of the graft copolymer pectin-methyl methacrylate-vinyl butyl ether with the IR spectra of pectin and the IR spectrum of pectin-methyl methacrylate indicated that all the bands characteristic of pectin, polymethyl methacrylate, and polyvinyl butyl ether were observed for the new polymer sample. Freeze-dried samples of pectin and pectin-methyl methacrylate-vinyl butyl ether graft copolymer were examined using scanning electron microscopy. A comparative analysis showed a change in the structure of pectin fibers as a result of its copolymerization with a copolymer of methyl methacrylate-vinyl butyl ether. The obtained data confirm the addition of synthetic polymers alkyl (meth) acrylate-vinyl butyl ether to the basis of the pectin macromolecule. New substances are polymer molecules containing natural and synthetic fragments with an ordered structure. Such compounds are promising as the basis for wound healing coatings.

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Pectin, butyl acrylate, methyl methacrylate, vinyl butyl ether, triethylborane, molecular weight parameters, graft copolymers

Короткий адрес: https://sciup.org/147240920

IDR: 147240920   |   DOI: 10.14529/chem230209

Список литературы Novel photoanode based on hierarchically structured Ti-P double oxide

  • Zhu K. et al. Enhanced charge-collection efficiencies and light scattering in dye-sensitized solar cells using oriented TiO2 nanotubes arrays. Nano Lett. 2007;7(1):69-74. DOI: 10.1021/nl062000o.
  • Mor G.K. et al. Use of highly-ordered TiO 2 nanotube arrays in dye-sensitized solar cells. Nano Lett. 2006;6(2):215-218. DOI: 10.1021/nl052099j.
  • Paulose M. et al. Backside illuminated dye-sensitized solar cells based on titania nanotube array electrodes. Nanotechnology. 2006;17(5):1446-1448. DOI: 10.1088/0957-4484/17/5/046.
  • Suh D.I. et al. The fabrication and characterization of dye-sensitized solar cells with a branched structure of ZnO nanowires. Chem. Phys. Lett. 2007;442(4-6):348-353. DOI: 10.1016/ j.cplett.2007.05.093.
  • Zhu Y.F. et al. Synthesis of highly-ordered hierarchical ZnO nanostructures and their application in dye-sensitized solar cells. Cryst. Res. Technol. 2010;45(10):1075-1078. DOI: 10.1002/crat.201000325.
  • Xu C. et al. Preferential growth of long ZnO nanowire array and its application in dye-sensitized solar cells. J. Phys. Chem. C. 2010;114(1):125-129. DOI: 10.1021/jp9085415.
  • Kim D. et al. Bamboo-type TiO2 nanotubes: Improved conversion efficiency in dye-sensitized solar cells. J. Am. Chem. Soc. 2008;130(49):16454-16455. DOI: 10.1021/ja805201v.
  • Adachi M. et al. Highly efficient dye-sensitized solar cells with a titania thin-film electrode composed of a network structure of single-crystal-like TiO2 nanowires made by the "oriented attachment" mechanism. J. Am. Chem. Soc. 2004;126(45):14943-14949. DOI: 10.1021/ja048068s.
  • Greene L.E. et al. ZnO - TiO2 core-shell nanorod/P3HT solar cells. J. Phys. Chem. C. 2007; 111(50): 18451-18456. DOI: 10.1021/jp077593l.
  • Plank N.O.V. et al. Efficient ZnO nanowire solid-state dye-sensitized solar cells using organic dyes and core-shell nanostructures. J. Phys. Chem. C. 2009; 113(43):18515-18522. DOI: 10.1021/jp904919r.
  • Taratula O. et al. Binding studies of molecular linkers to ZnO and MgZnO nanotip films. J. Phys. Chem. B. 2006;110(13):6506-6515. DOI: 10.1021/jp0570317.
  • Liao J.Y. et al. Tri-functional hierarchical TiO 2 spheres consisting of anatase nanorods and nanoparticles for high efficiency dye-sensitized solar cells. Energy Environ. Sci. 2011;4(10):4079-4085. DOI: 10.1039/c1ee01574e.
  • Liao J.Y. et al. Effect of TiO2 morphology on photovoltaic performance of dye-sensitized solar cells: Nanoparticles, nanofibers, hierarchical spheres and ellipsoid spheres. J. Mater. Chem. 2012;22(16):7910-7918. DOI: 10.1039/c2jm16148f.
  • Cheng H.M. et al. Formation of branched ZnO nanowires from solvothermal method and dye-sensitized solar cells applications. J. Phys. Chem. C. 2008;112(42):16359-16364. DOI: 10.1021/jp805239k.
  • Chen W., Yang S. Dye-sensitized solar cells based on ZnO nanotetrapods. Frontiers of Optoelectronics in China. 2011;4(1):24-44. DOI: 10.1007/s12200-011-0207-0.
  • Heintz N.S. et al. Sorption of Titanium Complexes with Organic Acids on Titanium (IV) Oxide. Bulletin of the South Ural State University. Ser. Chemistry. 2021;13(2):79-88. DOI: 10.14529/chem21020.
  • Yada M. et al. Synthesis and controllable wettability of micro-and nanostructured titanium phosphate thin films formed on titanium plates. ACS Appl. Mater. Interfaces. 2014;6(10):7695-7704. DOI: 10.1021/am500974v.
  • Wang X. et al. Novel flower-like titanium phosphate microstructures and their application in lead ion removal from drinking water. J. Mater. Chem. A. 2014;2(19):6718-6722. DOI: 10.1039/c4ta00246f.
  • Wu Y. et al. Hexylthiophene-featured D-A-n-a structural indoline chromophores for coadsor-bent-free and panchromatic dye-sensitized solar cells. Adv. Energy Mater. 2012;2(1): 149—156. DOI: 10.1002/aenm.201100341
  • Mikhailov M.S. et al. 9-(p-Tolyl)-2,3,4,4a,9,9a-hexahydro-1H-carbazole - A new donor building-block in the design of sensitizers for dye-sensitized solar cells. J. Photochem. Photobiol. A Chem. 2020;391:112333. DOI: 10.1016/j.jphotochem.2019.112333.
  • Tanaka E. et al. Structural features of indoline donors in D-A-n-A type organic sensitizers for dye-sensitized solar cells. Mol. Syst. Des. Eng. 2021;6(9):730-738. DOI: 10.1039/d1me00054c.
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