Photocatalyst with atomic-scale dispersed metal sites on surface as well as preparation method and application of photocatalyst
A metal site, photocatalyst technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve the problems of complex synthesis methods, time-consuming, increasing difficulty and cost, etc.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
preparation example Construction
[0039] The present invention provides the application of the catalyst with atomic-level metal dispersion on the surface obtained by any one of the preparation methods described above in the photocatalytic reduction of carbon dioxide.
[0040] The invention provides a photocatalytic carbon dioxide reduction method, the catalyst used is the catalyst with atomic-level metal dispersion on the surface prepared by the preparation method described in any one of the above technical solutions.
[0041] The application method of the present invention is as follows: In this experiment, the water-vapor mixing method was adopted, and the catalyst was spread flat on a glass petri dish, then placed at the bottom of the photocatalytic carbon dioxide reduction reaction vessel, and then a small amount of deionized water was added.
[0042] First, coat the reaction vessel with the catalyst with vacuum grease and connect it to the carbon dioxide reduction system, then turn on the vacuum system, tu...
Embodiment 1
[0050] Step 1, preparation of cadmium sulfide nanorods.
[0051] The cadmium sulfide nanorods deposited on the surface of conductive glass were prepared by hydrothermal method, 0.37g cadmium nitrate tetrahydrate, 0.27g thiourea and 0.05g reduced glutathione were dissolved in 50mL deionized water, stirred evenly and transferred into 100mL Place the cleaned FTO conductive substrate in the reaction kettle lined with polytetrafluoroethylene, with the conductive side facing down, seal it and place it in an oven preheated to 200°C for 4 hours. After the reaction, the product was washed with deionized water and naturally air-dried to obtain a cadmium sulfide catalyst.
[0052] figure 1 is the scanning electron microscope (SEM) photo of the prepared cadmium sulfide nanorod sample; it can be seen that the prepared sample is in the shape of nanorods, with a length of about 400nm and a diameter of about 100nm, and the distribution is uniform.
[0053] The X-ray diffraction patterns (XR...
Embodiment 2
[0058] Step 1, preparation of cadmium sulfide nanorods.
[0059] Similar to Example 1. The cadmium sulfide nanorods deposited on the surface of conductive glass were prepared by hydrothermal method, 0.37g cadmium nitrate tetrahydrate, 0.27g thiourea and 0.05g reduced glutathione were dissolved in 50mL deionized water, stirred evenly and transferred into 100mL Place the cleaned FTO conductive substrate in the reaction kettle lined with polytetrafluoroethylene, with the conductive side facing down, seal it and place it in an oven preheated to 200°C for 4 hours. After the reaction, the product was washed with deionized water and naturally air-dried to obtain a cadmium sulfide catalyst.
[0060] Step 2, preparation of a cadmium sulfide catalyst having atomic-level copper dispersed on the surface.
[0061] Into a 100mL three-neck flask filled with 28mL 1.0mol / L HCl solution, pass Ar gas for 5min, then add 1.8mL hydrazine hydrate (volume fraction 85%), and then add 60mL water; put...
PUM
| Property | Measurement | Unit |
|---|---|---|
| length | aaaaa | aaaaa |
| diameter | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
Login to View More