Production of a Composite Based on Alumina Nanofibers and Detonation Nanodiamonds for Creating Phenol Indication Systems

Описание

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.1134/S001250081911003X

Аннотация: Abstract: A composite of alumina nanofibers (ANF) and modified detonation nanodiamonds (MDND) was produced by mixing aqueous suspensions of the components in a weight ratio of 5 : 1 with subsequent incubation of the mixture for 15 min at 32°C. It was assumed that the formation of the composite is ensured by the difference of the zeПоказать полностьюta potentials of the components, which is negative for MDND and positive for ANF. Vacuum filtration of the mixture through a fluoroplastic filter (pore diameter 0.6 μm) formed disks 40 mm in diameter, which were then heat-treated at 300°C to impart structural stability to the composite. Scanning electron microscopy detected that the obtained composite has a network structure, in which MDND particles are distributed over the surface of ANF. It was determined that the MDND particles incorporated in the composite catalyze the phenol–4-aminoantipyrine–H2O2 oxidative azo coupling reaction to form a colored product (quinoneimine). The applicability of the composite to repeated phenol detection in aqueous samples was demonstrated. © 2019, Pleiades Publishing, Ltd.

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Издание

Журнал: Doklady Chemistry

Выпуск журнала: Vol. 489, Is. 1

Номера страниц: 267-271

ISSN журнала: 00125008

Издатель: Pleiades Publishing

Авторы

  • Ronzhin N.O. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia)
  • Posokhina E.D. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia; Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Mikhlina E.V. (Russian Acad Sci, Siberian Branch, Inst Computat Modeling, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
  • Simunin M.M. (Siberian Fed Univ, Krasnoyarsk 660041, Russia)
  • Nemtsev I.V. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, RussiaArticle)
  • Ryzhkov I.I. (Siberian Fed Univ, Krasnoyarsk 660041, Russia; Russian Acad Sci, Siberian Branch, Inst Computat Modeling, Krasnoyarsk Sci Ctr, Krasnoyarsk 660036, Russia)
  • Bondar V.S. (Russian Acad Sci, Siberian Branch, Krasnoyarsk Sci Ctr, Inst Biophys, Krasnoyarsk 660036, Russia)

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