Carbon nitride based material for photocatalytic water total decomposition as well as preparation and application thereof

A carbon nitride-based, photocatalytic technology, used in chemical instruments and methods, physical/chemical process catalysts, electrolysis processes, etc., can solve problems such as deactivation, and achieve the effects of inhibiting separation, preventing rapid recombination, and high stability

Inactive Publication Date: 2019-07-09
SHANGHAI UNIVERSITY OF ELECTRIC POWER
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  • Abstract
  • Description
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  • Application Information

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Problems solved by technology

However, the photogenerated electrons and hole pairs of graphitic carbon nitride are easy to recombine quickly, and they will also be poisoned by hydrogen peroxide during the photocatalytic process and deactivate rapidly.

Method used

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  • Carbon nitride based material for photocatalytic water total decomposition as well as preparation and application thereof
  • Carbon nitride based material for photocatalytic water total decomposition as well as preparation and application thereof
  • Carbon nitride based material for photocatalytic water total decomposition as well as preparation and application thereof

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Embodiment

[0035] A carbon nitride-based material for photocatalytic total water splitting, comprising a carbon nitride carrier, the carbon nitride carrier is loaded with monoatomic palladium, and the loading amount of the monoatomic palladium is 0.0925wt.%.

[0036] Utilize impregnation-high-temperature anchoring method to prepare described carbon nitride-based materials for photocatalytic total water splitting, that is, support monoatomic palladium on the surface of carbon nitride and between layers, the quality of palladium in the palladium source of this embodiment is comparable to that of graphite The mass ratio of phase carbon nitride is 0.0016:1. The specific steps are:

[0037] Weigh 10g of melamine and place it in a crucible, then place the crucible in a muffle furnace, raise the temperature to 500°C at a rate of 2°C / min, then keep it for calcination for 2 hours, then raise it to 520°C for calcination at the same rate After 2 hours, after naturally cooling to room temperature, ...

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Abstract

The invention provides a carbon nitride based material for photocatalytic water total decomposition as well as preparation and application thereof. The carbon nitride based material for the photocatalytic water total decomposition, provided by the invention, is characterized by comprising a carbon nitride carrier; and monatomic palladium is loaded on the carbon nitride carrier. Compared with puregraphite-phase carbon nitride and palladium nanoparticle loaded carbon nitride, the carbon nitride based material provided by the invention has better catalytic activity and stability.

Description

technical field [0001] The invention belongs to the field of photocatalytic total water splitting catalysts, in particular to a photocatalytic total water splitting material with a very small amount of monoatomic palladium supporting carbon nitride. Background technique [0002] As we all know, the rapid depletion of traditional fossil energy reserves and the resulting environmental pollution have seriously affected economic development and human life. The "artificial light and effect" driven by solar energy to split water is to realize the conversion of solar energy into clean and sustainable hydrogen energy. It is also an ideal way to solve the future energy crisis and environmental damage. However, it is difficult for most photocatalytic materials to achieve photocatalytic water splitting without sacrificial agents, and its output is difficult to meet the needs of industrialization. This is because the process of photocatalytic water splitting involves many reactions, an...

Claims

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Application Information

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IPC IPC(8): B01J27/24C25B1/04C25B11/06
CPCB01J27/24C25B1/04C25B11/04B01J35/39Y02E60/36
Inventor 姚伟峰孙杰赵琦石英
Owner SHANGHAI UNIVERSITY OF ELECTRIC POWER
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