Supercharge Your Innovation With Domain-Expert AI Agents!

A preparation method of mesoporous perovskite oxide/silicon dioxide and its application method in water treatment

A perovskite type, silicon dioxide technology, applied in the direction of oxidized water/sewage treatment, metal/metal oxide/metal hydroxide catalyst, chemical instruments and methods, etc., can solve the problems of poor treatment effect and achieve high efficiency The effect of removal

Active Publication Date: 2018-01-23
BEIJING FORESTRY UNIVERSITY
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The present invention aims at the polluted water body containing the ultraviolet stabilizer PBSA, and in order to solve the problem of poor treatment effect of the existing conventional sewage, an innovative "one-step hydrothermal method" is proposed to prepare the perovskite oxide / SiO 2 Mesoporous materials, and used as catalysts in advanced oxidation water treatment systems for catalytic ozonation and activated persulfate water treatment, and for perovskite oxides / SiO 2 The preparation and application conditions of mesoporous materials are described

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 preparation method of mesoporous perovskite oxide/silicon dioxide and its application method in water treatment
  • A preparation method of mesoporous perovskite oxide/silicon dioxide and its application method in water treatment
  • A preparation method of mesoporous perovskite oxide/silicon dioxide and its application method in water treatment

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0014] Specific implementation mode 1: perovskite oxide / SiO 2The preparation method of mesoporous material is: (1) Preparation of CTAB solution, weigh 1.0g ~ 4.0g cetyltrimethylammonium bromide (CTAB), add 60 ~ 120mL deionized water as solvent, ultrasonic 30 ~ 60min to its complete dissolution; (2) preparation of silicon source and active metal solution, add 2.0~10.0mmol lanthanum nitrate, 2.0~10.0mmol cobalt nitrate, 6.0~30.0mmol citric acid (the mol ratio of metal / citric acid=1 / 3), tetraethyl orthosilicate (TEOS) was slowly added dropwise to the solution described in (1) at a molar ratio n(CTAB) / n(TEOS)=0.12, and stirred at room temperature for 24h; (3) to ( 2) Add NaOH with a concentration of 2.0M dropwise to the solution, adjust the pH of the solution to 10.5-11.5 and continue to stir at room temperature for 10-14 hours; (4) Hydrothermal reaction, transfer the solution obtained in step (3) to the stainless steel reactor In the polytetrafluoroethylene lining, hydrothermal...

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 mesoporous perovskite oxide / silicon dioxide catalyzed degradation of the effectiveness of UV stabilizers in water, belonging to the fields of water treatment technology and environmental functional materials. The properties of the mesoporous perovskite oxide / silica catalyst can be powder or granule, and the template agent cetyltrimethylammonium bromide (CTAB), metal nitrate, citric acid and organosilicon source Ethyl silicate (TEOS) was used as the main raw material to prepare a mesoporous perovskite oxide catalyst to improve the degradation ability of the ultraviolet stabilizer PBSA in the heterogeneous catalytic oxidation technology. Aiming at the problem of poor removal effect of ultraviolet stabilizer PBSA in existing conventional sewage treatment, the present invention proposes a mesoporous perovskite oxide / silicon dioxide as a catalyst, and realizes its application in catalytic ozone oxidation technology and catalytic activation process. The successful application of sulfate technology, and the in-situ hydrothermal method is used to synthesize the mixture of mesoporous materials and perovskite oxides in one step, which is not only easy to operate, but also has good catalytic effect, and realizes the strengthening of refractory pollutants remove.

Description

technical field [0001] The invention relates to a preparation method of a perovskite type oxide mesoporous material and an application method in water treatment technology. Background technique [0002] With the improvement of living standards, drugs and personal care products (Pharmaceutical and personal care products, PPCPs) are widely used in daily life. As one of the most important pollutants in PPCPs, UV stabilizers are attracting attention due to their increasing residual concentration. 2-Phenylbenzimidazole-5-sulfonic acid (PBSA) is an important class of UV stabilizers. Due to the special reactivity, physiological activity, structural properties and other excellent properties of this type of compound, it is widely used in functional materials , pesticides and pharmaceuticals. Studies have shown that UV stabilizers exist in various environmental media such as domestic sewage treatment plant sludge, and are difficult to completely treat in urban sewage treatment plant...

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): B01J23/83C02F1/78
Inventor 齐飞张钰婷
Owner BEIJING FORESTRY UNIVERSITY
Features
  • R&D
  • Intellectual Property
  • Life Sciences
  • Materials
  • Tech Scout
Why Patsnap Eureka
  • Unparalleled Data Quality
  • Higher Quality Content
  • 60% Fewer Hallucinations
Social media
Patsnap Eureka Blog
Learn More

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

© 2025 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com