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Zeolite-Titanium Dioxide Nanocomposites: Preparation, Characterization and Adsorption Properties Научная публикация

Журнал Nanotechnologies in Russia
ISSN: 1995-0780 , E-ISSN: 1995-0799
Вых. Данные Год: 2016, Том: 11, Номер: 9-10, Страницы: 579-592 Страниц : 14 DOI: 10.1134/S1995078016050098
Ключевые слова Adsorption; Gas adsorption; Nanocrystals; Oxides; Scanning electron microscopy; Temperature; Titanium; Titanium dioxide; Zeolites
Авторы Kravchenko G.V. 1 , Domoroshchina E.N. 1 , Kuzʹmicheva G.M. 1 , Gaynanova A. 1 , Amarantov S.V. 2 , Pirutko L.V. 3 , Tsybinsky A.M. 4 , Sadovskaya N.V. 5 , Kopylova E.V. 1
Организации
1 Moscow Technological University, Moscow, 119454 Russia
2 Federal Scientific Research Center “Crystallography and Photonics,” Russian Academy of Sciences, Moscow, 119333 Russia
3 Boreskov Institute of Catalysis, Siberian Branch, Russian Academy of Sciences, Novosibirsk, 630090 Russia
4 Fedorovsky All-Russian Research Institute of Mineral Raw Materials, Moscow, 119017 Russia
5 Karpov Research Institute of Physical Chemistry, Moscow, 105064 Russia

Информация о финансировании (1)

1 Российский фонд фундаментальных исследований 15-03-01289

Реферат: Synthesis conditions are optimized to obtain η-phase/zeolite and Hombifine N/zeolite nanocomposites by the modified cold-impregnation method (method 1), which consists of the codispersion of the samples containing the η-phase or Hombifine N with nano-anatase in a dilute KOH solution, and Beta(25) and ZSM-5 zeolites with different modulus, MOR and Y, for the first time, as well as by the TiO2/zeolite in situ method (method 2), which consists of the addition of zeolites into the reaction mixture during the synthesis of titanium dioxide. The starting components and nanocomposites are characterized by different methods, such as wide- and small-angle Х-ray scattering, scanning electron microscopy, and low-temperature nitrogen adsorption (the Brunauer–Emmet–Teller method). The interaction between nanosized titanium dioxide (NTD) and zeolites (except Y) during the formation of the NTD/zeolite nanocomposite (method 2) and the η-phase/MOR nanocomposite (method 1) is revealed, and the presence of NTD in the nanocomposites in nanocrystalline (Hombifine N/zeolite) or amorphous (η-phase/Beta(25) and η-phase/ZSM- 5(300)) states is established. It is found that the use of microwave and ultrasonic treatment upon the synthesis of the nanocomposite gives rise to the uniform distribution of spherical particles in the samples; furthermore, they are the same size (η-phase/ZSM-5(12), η-phase/ZSM-5(300), and η-phase/Y) or smaller (η-phase/MOR, η-phase/Beta(25), and η-phase/ZSM-5(40)) when compared to the original η-phase. The size of spherical particles in the η-phase/ZSM-5(40) nanocomposite is comparable with the starting ZSM-5(40) zeolite. It is found that the preparation of nanocomposites by method 2 leads to an increase in the specific surface for the NTD/ZSM-5(12) and NTD/Y nanocomposites and to a decrease in the specific surface for the remaining nanocomposites (most significantly for NTD/MOR) when compared to the zeolite matrix, and promotes the high adsorption capacity of the NTD/zeolite nanocomposites with regard to the extraction of the P(V) ions from the model aqueous system with the maximum value (99.48%) for the NTD/MOR nanocomposite.
Библиографическая ссылка: Kravchenko G.V. , Domoroshchina E.N. , Kuzʹmicheva G.M. , Gaynanova A. , Amarantov S.V. , Pirutko L.V. , Tsybinsky A.M. , Sadovskaya N.V. , Kopylova E.V.
Zeolite-Titanium Dioxide Nanocomposites: Preparation, Characterization and Adsorption Properties
Nanotechnologies in Russia. 2016. V.11. N9-10. P.579-592. DOI: 10.1134/S1995078016050098 WOS Scopus РИНЦ CAPlus OpenAlex
Оригинальная: Кравченко Г.В. , Доморощина Е.Н. , Кузьмичева Г.М. , Гайнанова А.А. , Амарантов С.В. , Пирютко Л.В. , Зыбинский А.М. , Садовская Н.В. , Копылова Е.В.
Нанокомпозиты цеолит-диоксид титана: получение, характеризация,адсорбционные свойства
Российские нанотехнологии. 2016. Т.11. №9-10. С.47-56. RSCI РИНЦ
Даты:
Поступила в редакцию: 12 февр. 2016 г.
Принята к публикации: 14 июн. 2016 г.
Опубликована в печати: 1 сент. 2016 г.
Опубликована online: 20 окт. 2016 г.
Идентификаторы БД:
Web of science: WOS:000410420500009
Scopus: 2-s2.0-84991833018
РИНЦ: 27586760
Chemical Abstracts: 2016:1706723
OpenAlex: W2539324137
Цитирование в БД:
БД Цитирований
Web of science 16
Scopus 16
РИНЦ 15
OpenAlex 18
Альметрики: