MOFs/COFs heterojunction composite photocatalyst as well as preparation method and application thereof

A catalyst and composite light technology, applied in catalyst activation/preparation, organic compound/hydride/coordination complex catalyst, physical/chemical process catalyst, etc., can solve the problem of long time, complicated preparation process, and increased environmental burden problem, to achieve the effects of rapid response, environmentally friendly preparation method, and good organic degradation effect

Active Publication Date: 2021-09-24
GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
View PDF7 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Although the above photocatalysts have all played a good carbamazepine degradation effect, because the catalyst preparation process has used a large amount of reagents, and the preparation process is relatively complicated, the time is long, and due to the consumption of a large amount of solvent, the preparation process has increased. environmental burden

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] A preparation method of MOFs / COFs heterojunction composite photocatalyst, comprising the following steps:

[0037] 1) Add 10 grinding balls with a diameter of 5 mm and 25 grinding balls with a diameter of 7 mm in a 50 mL zirconia grinding jar, add 1 mL of p-toluenesulfonic acid catalyst, 340 mg MA and 960 mg 2-aminoterephthalic acid to the grinding jar, and set the rotating speed to 300 rpm ;grinding 30min;

[0038] 2) Add 378mg TP and 622mg ferrous acetate to the grinding jar again, and continue grinding for 3h by utilizing the kinetic energy between the grinding ball and the grinding jar;

[0039] 3) Put 1 mL of ultrapure water in the mixture of the grinding jar, and continue grinding for 5 h; finally collect the MOF / COF heterojunction composite photocatalyst, wash with DMF three times, and vacuum dry at 60 °C.

Embodiment 2

[0041] A preparation method of MOFs / COFs heterojunction composite photocatalyst, comprising the following steps:

[0042] 1) Add 10 grinding balls with a diameter of 5 mm and 25 grinding balls with a diameter of 7 mm in a 50 mL zirconia grinding jar, add 1 mL of p-toluenesulfonic acid catalyst, 340 mg MA and 480 mg 2-aminoterephthalic acid to the grinding jar, and set the rotating speed to 300 rpm ;grinding 60min;

[0043] 2) Add 378mg TP and 311mg ferrous acetate to the grinding tank again, and continue grinding for 3h by utilizing the kinetic energy between the grinding ball and the grinding tank;

[0044] 3) Put 1 mL of ultrapure water in the mixture of the grinding jar and continue grinding for 5 h; finally collect the MOF / COF heterojunction composite photocatalyst, wash twice with DMF, and vacuum dry at 60°C.

Embodiment 3

[0046] A preparation method of MOFs / COFs heterojunction composite photocatalyst, comprising the following steps:

[0047] 1) Add 10 grinding balls with a diameter of 5 mm and 25 grinding balls with a diameter of 7 mm in a 50 mL zirconia grinding jar, add 1 mL of p-toluenesulfonic acid catalyst, 340 mg MA and 1440 mg 2-aminoterephthalic acid to the grinding jar, and set the rotating speed to 300 rpm ;grinding 30min;

[0048]2) Add 378mg TP and 933mg ferrous acetate to the grinding tank again, and continue grinding for 5h by utilizing the kinetic energy between the grinding ball and the grinding tank;

[0049] 3) Put 1 mL of ultrapure water in the mixture of the grinding jar, and continue grinding for 3 hours; finally collect the MOF / COF heterojunction composite photocatalyst, wash with DMF three times, and vacuum dry at 60 °C.

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
diameteraaaaaaaaaa
Login to view more

Abstract

The invention belongs to the technical field of photocatalyst preparation, and particularly relates to an MOFs/COFs heterojunction composite photocatalyst as well as a preparation method and application thereof. According to the preparation method, melamine, 1,3,5-triformyl phloroglucinol, 2-aminoterephthalic acid and ferrous acetate are used as reaction raw materials, a catalyst is added, and the MOFs/COFs heterojunction composite photocatalyst is prepared by using a mechanical grinding method. The preparation method of the catalyst is simple and green, and the catalyst has good degradation efficiency on pollutants in water, especially carbamazepine.

Description

technical field [0001] The invention belongs to the technical field of photocatalyst preparation, and in particular relates to a MOFs / COFs heterojunction composite photocatalyst and a preparation method and application thereof. Background technique [0002] With the development of industrialization and urbanization, the continuous abuse of antibiotics has led to chronic toxicological effects of microorganisms in the water environment. At the same time, the resistance of microorganisms to antibiotics has increased, posing a potential threat to the ecosystem. Trace (μg) levels of carbamazepine contaminants were detected in the ecosystem. Carbamazepine, an antiepileptic and analgesic drug, can cause severe physical discomfort such as nausea and drowsiness at lower doses. Due to the persistence and bioaccumulation of carbamazepine, high exposure to carbamazepine (>40 mg / L) can lead to seizures, coma and even death. Therefore, how to efficiently remove carbamazepine from the...

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 Applications(China)
IPC IPC(8): B01J31/22C02F1/30C02F101/30
CPCB01J31/1691B01J35/004B01J37/0036B01J31/2213B01J31/2239C02F1/30C02F2101/30C02F2101/34C02F2101/38C02F2305/10B01J2531/842Y02W10/37Y02E60/36C07F15/025C02F1/725B01J37/04B01J2531/004
Inventor 吴丰昌赵晓丽牛琳
Owner GUANGDONG INST OF ECO ENVIRONMENT & SOIL SCI
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