RU2017134805A - Новый композитный материал, содержащий соединение железа и оксид графена - Google Patents

Новый композитный материал, содержащий соединение железа и оксид графена Download PDF

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RU2017134805A
RU2017134805A RU2017134805A RU2017134805A RU2017134805A RU 2017134805 A RU2017134805 A RU 2017134805A RU 2017134805 A RU2017134805 A RU 2017134805A RU 2017134805 A RU2017134805 A RU 2017134805A RU 2017134805 A RU2017134805 A RU 2017134805A
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iron
composite material
compound
graphene oxide
range
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RU2017134805A
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RU2017134805A3 (ru
RU2706318C2 (ru
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Исаму КИНОСИТА
Хидеки ХАСИМОТО
Киёси ИСОБЕ
Йосихико СЕРА
Эйдзи ЯМАСИТА
Томоко ХОРИБЕ
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Квансей Гакуин Эдьюкейшнл Фаундейшн
Фудзи Кемикал Индастриз Ко., Лтд.
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Claims (20)

1. Композитный материал в виде частиц, содержащий соединение железа и оксид графена, у которого
(1) размер первичных частиц в композитном материале в виде частиц находится в пределах от 0,1 до 100 мкм.
(2) размер частиц соединения железа находится в пределах от 0,1 до 10 нм,
(3) содержание железа для композитного материала находится в пределах от 0,1 до 50 мас. %,
4) поглощение, происходящее из O-H группы, поглощение, происходящее из C=O группы и поглощение около 701 см-1, происходящее из Fe-O группы практически отсутствует, а поглощение, происходящее из C-O группы, присутствует в инфракрасном спектре поглощения композитного материала, и
(5) соединение железа удерживается на оксиде графена.
2. Композитный материал по п.1, в котором соединением железа является Fe3O4, Fe2O3 или смесь из них.
3. Композитный материал по п. 1 или 2, в котором размер частиц соединения железа находится в пределах от 0,5 до 5 нм.
4. Композитный материал по любому из пп. 1-3, в котором содержание железа для композитного материала находится в пределах от 0,5 до 40 мас.%,
5. Композитный материал по любому из пп. 1-4, при этом по существу, нет сигнала свыше 2θ=30°С при порошковом рентгенодифракционном исследовании.
6. Композитный материал по любому из пп. 1-4, при этом оксид графена сохраняет удерживание соединения железа после облучения белым светом в водном растворе при pH 2, при этом графен сохраняет удерживание соединения железа после облучения белым светом в водном растворе при pH 14.
7. Способ получения композитного материала, содержащего соединение железа и оксид графена, при этом способ включает этап суспендирования в инертном растворителе соединения железа и оксида графена как сырьевых материалов, и облучения полученной суспензии светом, включающим УФ и видимое излучения.
8. Способ по п. 7, в котором соединением железа в качестве сырьевого материала является, по меньшей мере, одно из: соли железа и неорганической кислоты, соли железа и карбоновой кислоты, соли железа и сульфоновой кислоты, гидроксида железа, фенольного железа, двойных солей железа и комплексов железа.
9. Способ по п. 7 или 8, в котором УФ и видимое излучения имеют длину волны в пределах от 100 нм до 800 нм.
10. Способ по пп. 7-9, в котором время облучения светом, включающим УФ и видимое излучения, находится в пределах от 1 минуты до 24 часов.
11. Фотокатализатор, включающий в себя композитный материал, содержащий соединение железа и оксид графена, по любому из пп. 1-6.
12. Способ получения водорода, включающий смешивание воды и/или спирта и фотосенсибилизатора и/или донора электронов, при необходимости, в присутствии композитного материала, содержащего соединение железа и оксид графена, по любому из пп. 1-6, и облучение смеси светом.
13. Способ по п. 12, в котором спиртом является этанол.
14. Способ по п. 12 или 13, в котором свет представляет собой солнечный свет или LED белого света.
15. Оборудование для получения водорода, включающее композитный материал, содержащий соединение железа и оксид графена, по любому из пп. 1-6 в качестве катализатора выработки водорода.
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