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

A kind of preparation method and application of ag/agcl nano catalyst

A nano-catalyst and stock solution technology, applied in the field of nano-materials and environmental science, to achieve the effect of increasing specific surface area, strong light response ability, and simple method

Inactive Publication Date: 2018-05-18
CHANGAN UNIV
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

And the water pollution caused by it cannot be ignored

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 kind of preparation method and application of ag/agcl nano catalyst
  • A kind of preparation method and application of ag/agcl nano catalyst
  • A kind of preparation method and application of ag/agcl nano catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] Step 1: Dissolve [Epy]Cl in a certain volume of ethylene glycol, so that the ratios of [Epy]Cl and ethylene glycol are 1mol:50ml, 1mol:150ml, 1mol:250ml, mix well, respectively as stock solution A1 , A2, A3 storage;

[0038] Step 2: Incorporate AgNO 3 Dissolve in a certain volume of ethylene glycol, stir until evenly mixed, so that AgNO 3 The ratio with ethylene glycol is 2mol:50ml, stored as stock solution B;

[0039] Step 3: above-mentioned stock solution A1, stock solution A2 and stock solution A3 are mixed with stock solution B respectively, make the ratio of [Epy]Cl and ethylene glycol be respectively 1mol:100mL, 1mol:200mL and 1mol:300mL, obtain three liquids with different proportions;

[0040] Step 4: Stir three liquids with different ratios at room temperature for 15-30 minutes, and keep in an oil bath at 140-160°C for 2 hours;

[0041] Step 5: Cool the three reaction products to room temperature, and perform centrifugal drying.

[0042] The obtained produ...

Embodiment 2

[0044] Step 1: Dissolve [Epy]Cl in a certain volume of ethylene glycol, so that the ratio of [Epy]Cl ionic liquid to ethylene glycol is 1mol:250ml, mix well, and store as stock solution A;

[0045] Step 2: Incorporate AgNO 3 Dissolve in a certain volume of ethylene glycol, stir until evenly mixed, so that AgNO 3 The ratio with ethylene glycol is 2mol:50ml, stored as stock solution B;

[0046] Step 3: Mix the above stock solution A and stock solution B so that the ratio of [Epy]Cl to ethylene glycol in the mixed solution is 1mol:300ml;

[0047] Step 4: Divide the mixed liquid in Step 3 into three equal parts, stir at room temperature for 15-30 min respectively, and keep in an oil bath at 140-160° C. for 5, 15 and 120 min respectively.

[0048] Step 5: Cool the reaction product to room temperature, and perform centrifugal drying.

[0049] The SEM image of the obtained product is shown in image 3 . It can be seen from the figure that when the holding time in the oil bath is...

Embodiment 3

[0051] The ratio of ionic liquid and ethylene glycol in Example 1 is respectively 1mol:100mL and 1mol:300mL The catalyst prepared is used in the photodegradation process of methylene blue polluted liquid in fish medicine.

[0052] Step 1: Dissolve 500 mg of catalyst in 10 mL of methylene blue solution with a concentration of 20 mg / L, and perform a dark adsorption treatment process for 45 min;

[0053] Step 2: After adsorption equilibrium, put it under visible light to carry out the photolysis process of methylene blue.

[0054] Its photodegradation curve is as Figure 4 shown. Depend on Figure 4 a shows that the ratio of ionic liquid to ethylene glycol is 1mol:100mL of Ag / AgCl has little effect on the photocatalytic degradation of methylene blue, and only 5% of methylene blue is photodegraded after 40min; Figure 4 Ag / AgCl (the ratio of ionic liquid to ethylene glycol is 1mol:300mL) with better strip shape in b has a better photocatalytic degradation of methylene blue. It ...

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

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention relates to a preparation method and application of a Ag / AgCl nanocatalyst. The preparation of the nano-Ag / AgCl photocatalyst involves using ionic liquid [Epy]Cl as a precursor and shape control agent to synthesize a strip-shaped morphology. Ag / AgCl nanocatalyst. Under the conditions of using ionic liquid [Epy]Cl as the precursor and shape control agent, the crystal planes of the cubic seed crystals are grown vertically to obtain strip-shaped nanocatalysts with unique shapes. This catalyst has strong photocatalytic activity and can decolorize and photolyze the target pollutant methylene blue in fish medicine under the stimulation of visible light. This characteristic greatly improves the photoresponse of the catalyst. Compared with the Ag / AgCl nanocatalyst with cubic crystal form, its catalytic degradation performance of methylene blue in fish medicine is greatly improved. The degradation rate within 40 minutes is as high as 91%, which is much higher. It is based on 5% of cubic Ag / AgCl and has the characteristics of efficient degradation and high practicability.

Description

technical field [0001] The invention belongs to the fields of nanomaterials and environmental science, and in particular relates to a preparation method and application of an Ag / AgCl nanometer catalyst. technical background [0002] Introduction to nano silver: Nano silver (NanoSilver) is a metallic silver element with a particle size of nanometer. The particle size of nano-silver is mostly around 25 nanometers, which has a strong inhibitory and killing effect on dozens of pathogenic microorganisms such as Escherichia coli, Neisseria gonorrhoeae, and Chlamydia trachomatis, and will not produce drug resistance. [0003] An article stated that AgCl, as a photocatalyst, has a large specific surface area, but the catalyst is easily deactivated, easily aggregated and difficult to separate in the experiment. [0004] As a photocatalyst, Ag / AgCl has the disadvantage of low activity after repeated use, and the problem of morphology control. [0005] Methylene blue is an aromatic h...

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): B01J27/10C02F1/30C02F101/38
CPCC02F1/30B01J27/10C02F2101/38C02F2305/10B01J35/39
Inventor 李宇亮马天培朱棋王帅王雅迪
Owner CHANGAN UNIV