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Ultrathin-structure carbon nitride-iron oxide photocatalyst and preparation method thereof

A technology of iron oxide light and carbon nitride, applied in the direction of physical/chemical process catalysts, chemical instruments and methods, inorganic chemistry, etc., can solve the problems of uneven distribution of two phases of photocatalysts, complex preparation processes, etc., and achieve excellent photocatalysis Water splitting hydrogen production performance, low thermal oxidation temperature, high yield effect

Inactive Publication Date: 2021-05-04
TIANJIN UNIV
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  • Description
  • Claims
  • Application Information

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Problems solved by technology

At present, the carbon nitride / iron oxide heterojunctions are prepared by first preparing ultra-thin carbon nitride and iron oxide separately and then compounding them together. The two-phase distribution of the photocatalyst obtained in this way is not uniform, and the preparation process is complicated.

Method used

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  • Ultrathin-structure carbon nitride-iron oxide photocatalyst and preparation method thereof
  • Ultrathin-structure carbon nitride-iron oxide photocatalyst and preparation method thereof
  • Ultrathin-structure carbon nitride-iron oxide photocatalyst and preparation method thereof

Examples

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Embodiment example 1

[0022] The preparation method is to put 10g of urea into a muffle furnace, keep it warm at 550°C for 3 hours, and grind the prepared carbon nitride into powder for later use, marked as BCN. Take 100mg of the prepared carbon nitride and add 1ml of FeCl with a concentration of 0.006mol / L 3 ·6H 2 O aqueous solution and mixed evenly, put the mixture in an oven to dry at 60°C for 12 hours, put the dried product in a muffle furnace for 30 minutes at 430°C to get the sample FCN-1.

Embodiment example 2

[0024] The specific implementation method is the same as embodiment 1, and the difference is that the FeCl 3 ·6H 2 The volume of O aqueous solution was changed to 3ml, and it was labeled as FCN-3.

Embodiment example 3

[0026] The specific implementation method is the same as embodiment 1, and the difference is that the FeCl 3 ·6H 2 The volume of the aqueous O solution was changed to 5 ml, labeled as FCN-5.

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Abstract

The invention discloses an ultrathin-structure carbon nitride-iron oxide photocatalyst and a preparation method of the carbon nitride-iron oxide photocatalyst; prepared carbon nitride and an iron salt solution are mixed, dried and put into a muffle furnace to be calcined, and the ultrathin-structure carbon nitride-iron oxide photocatalyst is obtained after calcination. The method is easy to operate and high in yield, the obtained photocatalyst can effectively catalyze water decomposition to produce hydrogen under visible light, and the method is an efficient and economical photocatalyst preparation method.

Description

technical field [0001] The technology of the invention belongs to the technical field of catalysts, and more specifically relates to a preparation method of an ultra-thin carbon nitride / iron oxide photocatalyst, and its main application field is the field of photocatalysis. Background technique [0002] Due to the rapid development of industry, fossil energy has been exhausted, people's living environment has become more and more difficult, and the development of new energy is imminent. As a kind of new energy, solar energy will not change due to changes in regions and time, and is the key object of new energy development and utilization. Carbon nitride is one of the rare metal-free photocatalysts. Its preparation method is simple, its sources are wide, non-toxic, its band gap is moderate, and it has a good visible light response. It is a research hotspot in the field of photocatalysis. However, the separation of electron-hole pairs in carbon nitride itself is relatively di...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J27/24C01B3/04
CPCB01J27/24C01B3/042C01B2203/0277C01B2203/1047B01J35/39Y02E60/36
Inventor 朱胜利栗媛媛崔振铎梁砚琴
Owner TIANJIN UNIV
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