Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A kind of preparation method of composite visible light catalyst

A catalyst and visible light technology, applied in the field of materials science, can solve the problems of complex preparation process, poor chemical stability, low quantum yield, etc., and achieve the effect of simple preparation method, low cost and good photocatalytic effect

Active Publication Date: 2019-05-24
SHANGHAI SUPERHIGH ENVIRONMENTAL PROTECTION TECH CO LTD
View PDF8 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Aiming at the above-mentioned technical problems in the prior art, the present invention provides a method for preparing a composite visible light catalyst. The preparation method of the composite visible light catalyst should solve the problems of low actual quantum yield, low quantum yield, and Problems of poor chemical stability, high cost, and complicated preparation process

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 of composite visible light catalyst
  • A kind of preparation method of composite visible light catalyst
  • A kind of preparation method of composite visible light catalyst

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] (1), according to the elemental P and AgNO 3 Weigh P (0.001g, 0.033mmol) and AgNO with a molar ratio of 1:3 3 (0.017g, 0.1mmol);

[0025] (2), according to Zr 4+ with Ag + Weigh ZrCl at a molar ratio of 10:1 4 (0.233g, 1mmol), according to ZrCl 4 Weigh terephthalic acid (0.199g, 1.1mmol) at a molar ratio of 1.2:1;

[0026] (3) Disperse the raw materials in step (1) (2) into 20ml of N,N-dimethylformamide solvent, and at the same time, according to the volume ratio of N,N-dimethylformamide and acetic acid is 12:1 Add 1.7ml of acetic acid in the ratio of 1.7ml, stir at room temperature for 20min, then transfer to a polytetrafluoroethylene-lined reactor, control the reaction temperature to 180°C, the time is 24h, cool at room temperature, filter, and dry to obtain Ag 3 PO 4 / UiO-66 composite visible light catalyst, denoted as Ag 3 PO 4 / UiO-66-10.

Embodiment 2

[0028] (1), according to the elemental P and AgNO 3 Weigh P (0.002g, 0.067mmol) and AgNO with a molar ratio of 1:3 3 (0.034g, 0.2mmol);

[0029] (2), according to Zr4+ with Ag + Weigh ZrCl at a molar ratio of 5:1 4 (0.233g, 1mmol), according to ZrCl 4 Weigh terephthalic acid (0.183g, 1.1mmol) at a molar ratio of 1.1:1;

[0030] (3) Disperse the raw materials in step (1) (2) into 20ml of N,N-dimethylformamide solvent, and at the same time, according to the volume ratio of N,N-dimethylformamide and acetic acid is 11:1 Add 1.8ml of acetic acid in the ratio of 1.8ml, stir at room temperature for 15min, then transfer to a polytetrafluoroethylene-lined reactor, control the reaction temperature to 170°C, the time is 22h, cool at room temperature, filter, and dry to obtain Ag 3 PO 4 / UiO-66 composite visible light catalyst, denoted as Ag 3 PO 4 / UiO-66-5.

Embodiment 3

[0032] (1), according to the elemental P and AgNO 3 Weigh P (0.01g, 0.33mmol) and AgNO with a molar ratio of 1:3 3 (0.17g, 1mmol);

[0033] (2), according to Zr 4+ with Ag + The molar ratio of ZrCl is 1:1. 4 (0.233g, 1mmol), according to ZrCl 4 Weigh terephthalic acid (0.166g, 1mmol) at a molar ratio of 1:1;

[0034] (3) Disperse the raw materials in step (1) (2) into 20ml of N,N-dimethylformamide solvent, and at the same time, according to the volume ratio of N,N-dimethylformamide and acetic acid is 10:1 Add 2ml of acetic acid in the proportion of acetic acid, stir at room temperature for 10min, then transfer to a polytetrafluoroethylene-lined reactor, control the reaction temperature to 160°C, the time is 20h, cool at room temperature, filter, and dry to obtain Ag 3 PO 4 / UiO-66 composite visible light catalyst, denoted as Ag 3 PO 4 / UiO-66-1.

[0035] Depend on figure 1 , 2 , 3. It can be seen that the synthesized Uio-66 has a regular octahedral structure, and ...

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 provides a method for preparing a composite visible light catalyst. First, according to the steps of elemental P and AgNO 3 Weigh P and AgNO in a molar ratio of 1:3 3 ; Then follow Zr 4+ with Ag + The molar ratio is (1~10): 1. Weigh ZrCl 4 , and then follow the steps of terephthalic acid and ZrCl 4 Weigh terephthalic acid at a molar ratio of (1~1.2):1; disperse the above raw materials into N,N-dimethylformamide solvent, then add acetic acid, and control the reaction temperature to 160~180°C. The time is 20~24h to synthesize Ag 3 PO 4 / Uio‑66 composite visible light catalyst. The preparation method of the present invention is simple, low in cost and relatively pure Ag. 3 PO 4 The photocatalytic effect is better, and it can almost completely degrade 20 mg / L rhodamine B solution within 21 minutes under visible light irradiation.

Description

technical field [0001] The invention belongs to the field of materials science and relates to a photocatalyst, in particular to an Ag catalyst which is easy to synthesize and has high catalytic efficiency. 3 PO 4 / Uio-66 composite visible light catalyst preparation method. Background technique [0002] Solar energy is a kind of abundant, clean and infinitely usable energy, which has a very broad application prospect. Solar photocatalysis is an important way to utilize solar energy, including energy photocatalysis and environmental photocatalysis. Among them, environmental photocatalysis refers to the photocatalytic reaction of photocatalysts under light irradiation, so as to achieve the purpose of decomposing various pollutants and killing bacteria and viruses. Currently the most common photocatalyst is TiO 2 , however, TiO 2 As a photocatalyst, there are two problems, one is TiO 2 The bandgap width is wide, 3.2eV, which leads to a narrow photoresponse range, and can o...

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): B01J31/26C02F1/30C02F101/30
CPCC02F1/30B01J31/26C02F2101/30C02F2305/10B01J35/39
Inventor 张娜张小磊房永征甘传先刘静慧胡毓宁
Owner SHANGHAI SUPERHIGH ENVIRONMENTAL PROTECTION TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com