Preparation method of non-precious metal transition element sulfide-based efficient photocatalyst

A transition element, photocatalyst technology, applied in catalyst activation/preparation, physical/chemical process catalysts, chemical instruments and methods, etc. range of applications, etc., to achieve the effect of perfect crystal, good dispersion and simple operation

Active Publication Date: 2017-09-22
HEFEI UNIV OF TECH
View PDF5 Cites 7 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the commonly used photocatalysts are precious metal-based photocatalysts such as gold (Au) and platinum (Pt). Wide range of applications
Compared with noble metal-based photocatalysts, non-precious metal elements such as nickel (Ni), iron (Fe) and cobalt (Co) are abundant in the earth and are cheap, which are very suitable for large-scale industrial applications, but they are very suitable for photocatalytic applications. Research on non-precious metal-based photocatalysts is still insufficient

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method of non-precious metal transition element sulfide-based efficient photocatalyst
  • Preparation method of non-precious metal transition element sulfide-based efficient photocatalyst
  • Preparation method of non-precious metal transition element sulfide-based efficient photocatalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] The preparation method of the high-efficiency photocatalyst based on the non-noble metal transition element sulfide in this embodiment is as follows:

[0027] Step 1: Weigh 237.94mg of cobaltous chloride hexahydrate and 294.1mg of sodium citrate in 35mL of deionized water, mix well and fully dissolve, and then add 5mL of absolute ethanol with 350.6mg of tin tetrachloride pentahydrate dissolved in it. Stir and mix evenly;

[0028] Step 2: Add 5mL 2M sodium hydroxide solution dropwise to the mixed solution obtained in Step 1, react for 1 hour to obtain a pink suspension, centrifuge and wash with deionized water; Disperse the obtained sample in 40mL deionized water, add dropwise with stirring 20mL 8M sodium hydroxide solution, after half an hour of reaction, a gray suspension is obtained, centrifuged and washed with deionized water and absolute ethanol successively, and dried under vacuum to obtain CoSn(OH) 6 Precursor;

[0029] Step 3: Take 50mg of CoSn(OH) obtained in step 2 6...

Embodiment 2

[0033] The preparation method of the high-efficiency photocatalyst based on the non-noble metal transition element sulfide in this embodiment is as follows:

[0034] Step 1: Weigh 237.94mg of cobaltous chloride hexahydrate and 294.1mg of sodium citrate in 35mL of deionized water, mix well and fully dissolve, and then add 5mL of absolute ethanol with 350.6mg of tin tetrachloride pentahydrate dissolved in it. Stir and mix evenly;

[0035] Step 2: Add 5mL 2M sodium hydroxide solution dropwise to the mixed solution obtained in Step 1, react for 1 hour to obtain a pink suspension, centrifuge and wash with deionized water; Disperse the obtained sample in 40mL deionized water, add dropwise with stirring 20mL 8M sodium hydroxide solution, after half an hour of reaction, a gray suspension is obtained, centrifuged and washed with deionized water and absolute ethanol successively, and dried under vacuum to obtain CoSn(OH) 6 Precursor;

[0036] Step 3: Take 50mg of CoSn(OH) obtained in step 2 6...

Embodiment 3

[0039] The preparation method of the high-efficiency photocatalyst based on the non-noble metal transition element sulfide in this embodiment is as follows:

[0040] Step 1: Weigh 237.94mg of cobaltous chloride hexahydrate and 294.1mg of sodium citrate in 35mL of deionized water, mix them evenly and fully dissolve, and then add 5mL of anhydrous ethanol with 350.6mg of tin tetrachloride pentahydrate , Stir and mix evenly;

[0041] Step 2: Add 5mL 2M sodium hydroxide solution dropwise to the mixed solution obtained in Step 1, react for 1 hour to obtain a pink suspension, centrifuge and wash with deionized water; Disperse the obtained sample in 40mL deionized water, add dropwise with stirring 20mL 8M sodium hydroxide solution, after half an hour of reaction, a gray suspension is obtained, centrifuged and washed with deionized water and absolute ethanol successively, and dried under vacuum to obtain CoSn(OH) 6 Precursor;

[0042] Step 3: Take 50mg of CoSn(OH) obtained in step 2 6 The pr...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a preparation method of a non-precious metal transition element sulfide-based efficient photocatalyst. The preparation method comprises the following steps: by taking inorganic cobalt salt, tin salt, sodium citrate, sodium hydroxide and a sulfur source as raw materials, carrying out a coprecipitation method and hydrothermal reaction to prepare a bimetallic sulfide photocatalyst; and preparing a multi-layer structure by adding sodium hydroxide with different concentrations through the coprecipitation method, and changing a ratio of the cobalt salt and the tin salt to prepare the efficient bimetal based sulfide photocatalyst with a most appropriate ratio. The preparation method has the characteristics of simpleness, efficiency, environmental protection, controllability, low cost and the like. The prepared bimetallic sulfide photocatalyst is in a shape of regular hexahedron and has the characteristics of high stability, large specific surface area, high catalytic activity and the like.

Description

Technical field [0001] The invention relates to a preparation method of a high-efficiency photocatalyst based on a non-noble metal transition element sulfide, and belongs to the technical field of catalyst preparation. Background technique [0002] At present, most of the world's major energy supply depends on limited and non-renewable fossil fuels, such as coal, oil, and natural gas. However, the burning of fossil fuels has brought a series of environmental problems. The continuous deterioration of the environment has led to an increasingly harsh living environment for living things. Therefore, adjusting the energy structure is currently an important task for mankind. The exploration and utilization of new energy sources has become an urgent problem for scientists to solve. [0003] As a green, pollution-free and sufficient energy source, solar energy is used as "the technology of the 21st century dream". my country lists the utilization of solar energy as one of the important co...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): B01J27/043B01J37/10B01J37/03C01G51/00
CPCC01G51/30B01J27/043B01J37/031B01J37/10C01P2004/04B01J35/39
Inventor 从怀萍金星秦海利
Owner HEFEI UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap