Relationship Between (Micro)structure and Functional (Photocatalytic and Adsorption) Properties of Anatase–Mordenite Nanocomposite
Научная публикация
| Общее |
Язык:
Английский,
Жанр:
Статья (Full article),
Статус опубликования:
Опубликована,
Оригинальность:
Оригинальная
|
| Журнал |
Research on Chemical Intermediates
ISSN: 0922-6168
, E-ISSN: 1568-5675
|
| Вых. Данные |
Год: 2019,
Том: 45,
Номер: 5,
Страницы: 2869-2885
Страниц
: 17
DOI:
10.1007/s11164-019-03767-7
|
| Ключевые слова |
Nanocomposite; Microstructure; X-ray difractio; Scanning/ transmission electron microscopy; Photocatalytic and adsorption properties |
| Авторы |
Domoroshchina Elena
1
,
Orekhov Andrey
2,3
,
Chernyshev Vladimir
4
,
Kuz’micheva Galina
1
,
Kravchenko Galina
1
,
Klechkovskaya Vera
2
,
Pirutko Larisa
5
|
| Организации |
| 1 |
Federal State Budget Educational Institution of Higher Education, «MIREA - Russian Technological University», 86 Vernadskogo pr., Moscow, Russia 119571
|
| 2 |
Shubnikov Institute of Crystallography of Federal Scientifc Research Centre ‘Crystallography and Photonics’, Russian Academy of Sciences, 59 Leninskii pr., Moscow, Russia 119333
|
| 3 |
National Research Center ‘Kurchatov Institute’, 1 Akademika Kurchatova pl., Moscow, Russia 123182
|
| 4 |
Lomonosov Moscow State University, 1 Vorobyovy Gory, Moscow, Russia 119992
|
| 5 |
Boreskov Institute of Catalysis, 5 Lavrentieva pr., Novosibirsk, Russia 630090
|
|
Информация о финансировании (3)
|
1
|
Российский фонд фундаментальных исследований
|
15-03-01289
|
|
2
|
Федеральное агентство научных организаций России
|
0303-2016-0006 (V.44.1.6)
|
|
3
|
Министерство образования и науки Российской Федерации
|
14.616.21.0069 (RFMEFI61616X0069)
|
Anatase–mordenite nanocomposite was synthesized in situ and characterized by X-ray diffraction analysis, Brunauer–Emmett–Teller measurements, infrared (IR) spectroscopy, electron diffraction measurements, energy-dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy, and scanning and transmission electron microscopy. It was found that X-ray-amorphous anatase located in the zeolite micropores resulted in a decrease in the specific surface of anatase–mordenite compared to the initial mordenite. Anatase-containing nanoparticles in anatase–mordenite showed round shape and formed nano-associates and conglomerates. The water content in the zeolite cavities in anatase–mordenite was lower compared to mordenite. Anatase–mordenite nanocomposite exhibited higher photocatalytic activity in the model decomposition reaction of methyl orange under ultraviolet (UV) radiation and higher adsorption capacity for extraction of P(V) and As(V) ions from aqueous environment in the dark compared to the initial mordenite or anatase due to an increase in the content of active OH-groups on the nanocomposite surface compared to mordenite and an increase in the specific surface compared to anatase.