Unlock instant, AI-driven research and patent intelligence for your innovation.

a type of leaf-shaped zn 0.2 cd 0.8 s material preparation method

A leaf-shaped, variety-based technology, applied in the field of preparation of Zn0.2Cd0.8S materials, can solve the problems of cost increase, product agglomeration, high energy consumption, etc., achieve good economic and social benefits, simple preparation process, and high material purity Effect

Active Publication Date: 2020-12-08
SHAANXI UNIV OF SCI & TECH
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, the co-precipitation method has a fast reaction speed, simple and easy-to-operate process, and excellent product quality, but it has high requirements for temperature, high energy consumption, and the product is prone to sintering or melting, and the reaction is not easy to control.
The process operation of the microemulsion method is relatively simple, the device is simple, the operation is convenient, and the particles are uniform, but a large amount of organic matter will be produced, which will have a certain impact on the environment, cause environmental pollution, and the reaction rate is difficult to control. The disposal of by-products increases the cost of the reaction
The thermal decomposition method is easy to operate and has a fast reaction rate, but it is easy to cause product agglomeration, and the temperature required for the reaction is high, which requires high energy and cost for production

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
  • a type of leaf-shaped zn <sub>0.2</sub> cd <sub>0.8</sub> s material preparation method
  • a type of leaf-shaped zn <sub>0.2</sub> cd <sub>0.8</sub> s material preparation method
  • a type of leaf-shaped zn <sub>0.2</sub> cd <sub>0.8</sub> s material preparation method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] Step 1: Take 0.5mL of hydrofluoric acid (HF) and add it to 49.5mL of H 2 Mixed solution A is made in O;

[0025] Step 2: Get 0.5mmol of zinc acetate dihydrate (Zn(Ac) 2 2H 2 O) and 2 mmol of cadmium acetate dihydrate (Cd(Ac) 2 2H 2 O) under magnetic stirring, add in mixed solution A and make mixed solution B;

[0026] Step 3: Take 4 mmol of thiourea as a sulfur source and add it into the mixed solution B under magnetic stirring to form a mixed solution C;

[0027] Step 4: Add the mixed solution C into the lining of polytetrafluoroethylene, control the filling ratio to 50%, and react at 160°C for 20h;

[0028] Step 5: After the reaction is completed, centrifuge and wash 3 times with deionized water and ethanol respectively, dry in vacuum at 40°C for 5 hours, and grind to obtain leaf-like Zn 0.2 Cd 0.8 S material.

Embodiment 2

[0030] Step 1: Take 0.8mL of hydrofluoric acid (HF) and add it to 59.2mL of H 2 Mixed solution A is made in O;

[0031] Step 2: Get 0.75mmol of zinc acetate dihydrate (Zn(Ac) 2 2H 2 O) and 3 mmol of cadmium acetate dihydrate (Cd(Ac) 2 2H 2 O) under magnetic stirring, add in mixed solution A and make mixed solution B;

[0032] Step 3: Take 6 mmol of thiourea as a sulfur source and add it into the mixed solution B under magnetic stirring to form a mixed solution C;

[0033] Step 4: Add the mixed solution C to the lining of polytetrafluoroethylene, control the filling ratio to 60%, and react at 180°C for 24 hours;

[0034] Step 5: After the reaction is completed, centrifuge and wash 4 times with deionized water and ethanol respectively, dry in vacuum at 60°C for 8 hours, and grind to obtain leaf-like Zn 0.2 CD 0.8 S material.

[0035] From figure 1 It can be seen that the sample prepared in embodiment 2 corresponds to the standard card PDF#49-1302 (Zn 0.2 CD 0.8 S). It ...

Embodiment 3

[0037] Step 1: Take 1mL of hydrofluoric acid (HF) and add it to 69mL of H 2 Mixed solution A is made in O;

[0038] Step 2: Get 1mmol of zinc acetate dihydrate (Zn(Ac) respectively 2 2H 2 O) and 4 mmol of cadmium acetate dihydrate (Cd(Ac) 2 2H 2 O) under magnetic stirring, add in mixed solution A and make mixed solution B;

[0039] Step 3: Take 8 mmol of thiourea as a sulfur source and add it into the mixed solution B under magnetic stirring to form a mixed solution C;

[0040] Step 4: Add the mixed solution C to the lining of polytetrafluoroethylene, control the filling ratio to 70%, and react at 200°C for 26 hours;

[0041] Step 5: After the reaction is completed, centrifuge and wash 6 times with deionized water and ethanol, vacuum dry at 80°C for 10 hours, and grind to obtain leaf-like Zn 0.2 CD 0.8 S material.

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 leaf-like Zn0.2Cd0.8S material preparation method, which includes preparing a mixed solution A from hydrofluoric acid and H2O; using zinc acetate dihydrate and cadmium acetate dihydrate as raw materials, and adding into the mixed solution A to prepare a mixed solution B; using thiourea as a sulfur source, and adding into the mixed solution B to form a mixed solution C; adding the mixed solution C into the inner lining of polytetrafluoroethylene for a hydrothermal reaction; and after the reaction is completed, centrifugally washing the mixture with deionized water andethanol for multiple times respectively, and then drying and grinding the mixture to obtain leaf-like Zn0.2Cd0.8S material powder. The method adopts a hydrothermal method to prepare the Zn0.2Cd0.8S material, has simple process operation, does not need large-scale reaction equipment; under the hydrothermal condition, water can act as a chemical component and participate in the reaction, so that thewater is not only a solvent but also a mineralizer, and further can be used as a pressure transmission medium; and through participating in dialysis reaction, controlling physical and chemical factors and the like, the formation and modification of inorganic compounds are realized.

Description

technical field [0001] The present invention relates to a kind of Zn 0.2 Cd 0.8 The preparation method of S material, be specifically related to a kind of blade-like Zn 0.2 Cd 0.8 The preparation method of S material. Background technique [0002] In today's society, with the progress and development of society, the degree of industrialization and artificial intelligence is getting higher and higher, and the requirements for the materials used are also getting higher and higher. Traditional materials cannot meet the needs of use, so more and more Functional materials and composite materials have been developed rapidly. The increasing depletion of traditional fossil fuels and the serious environmental pollution caused by their combustion have prompted people to look for clean new energy sources. Hydrogen energy, as an efficient clean energy source, has attracted much attention because of its broad application prospects. At present, steam reforming of methane, which is 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
Patent Type & Authority Patents(China)
IPC IPC(8): C01G11/00
CPCC01G11/006C01P2004/20
Inventor 殷立雄李慧敏白培杰黄剑锋张浩繁孔新刚张峰李潞瑶
Owner SHAANXI UNIV OF SCI & TECH