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

VOCs separation and degradation film and preparation method thereof

A technology for degrading thin films and active components, which is applied in separation methods, dispersed particle separation, chemical instruments and methods, etc., can solve the problems of high energy consumption, low separation and degradation efficiency of VOCs, etc., and achieve improved separation and degradation efficiency, excellent performance, To achieve the effect of complete degradation

Active Publication Date: 2020-04-28
XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Aiming at the technical problems existing in the prior art, the present invention provides a VOCs separation and degradation film and its preparation method to solve the technical problems of low VOCs separation and degradation efficiency and high energy consumption in the prior art, so as to realize the VOCs separation and degradation Efficient separation and degradation

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
  • VOCs separation and degradation film and preparation method thereof
  • VOCs separation and degradation film and preparation method thereof
  • VOCs separation and degradation film and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0033] as attached figure 1 As shown, the present invention provides a kind of preparation method that is used for VOCs separation degradation membrane, comprises the following steps:

[0034] Step 1, add copper nitrate, manganese nitrate and cerium nitrate in water, stir, obtain thermocatalytic system, wherein, in thermocatalytic system, Cu 2+ :Mn 2+ : Ce 2+ :H 2 The mass ratio of O is: (3-4):(3-4):(1-2):(6-9);

[0035] mixing tetrabutyl titanate and isopropanol in a volume ratio of (1-1.5): (2-3) to obtain a photocatalyst system;

[0036] Step 2, adding the photocatalytic system dropwise into the thermal catalytic system and stirring until a sol is formed to obtain the active component loading liquid;

[0037] Step 3, adding additives and precious metals to the active component loading liquid, stirring vigorously for 5-10 hours at a stirring speed of 400-600r / min; maintaining at room temperature for 5-6 hours to obtain a loaded precursor; One or more of silica sol, pho...

Embodiment 1

[0047] A method for preparing a VOCs separation and degradation film is provided in Example 1, comprising the following steps:

[0048] Step 1. Take quantitative copper nitrate, manganese nitrate and cerium nitrate reagents as required, add copper nitrate, manganese nitrate and cerium nitrate reagents to water, stir to obtain a thermocatalytic system; wherein, in the thermocatalytic system, Cu 2+ :Mn 2+ : Ce 2+ :H 2 The mass ratio of O is: 3:3:1:6; tetrabutyl titanate and isopropanol are mixed in a volume ratio of 1:2 to obtain a photocatalyst system;

[0049] Step 2, adding the photocatalytic system dropwise into the thermal catalytic system and stirring until a sol is formed to obtain the active component loading liquid;

[0050] Step 3. Add silica sol and platinum to the active component loading solution, stir vigorously for 5 hours at a stirring speed of 600r / min; maintain at room temperature for 5-6 hours to obtain a loaded precursor; silica sol and active component T...

Embodiment 2

[0060] A method for preparing a VOCs separation and degradation film is provided in Example 2, comprising the following steps:

[0061] Step 1. Weigh quantitative copper nitrate, manganese nitrate and cerium nitrate reagents as required, add copper nitrate, manganese nitrate and cerium nitrate reagents to water, stir to obtain a thermal catalytic system; wherein, in the thermal catalytic system, Cu 2+ :Mn 2+ : Ce 2+ :H 2 The mass ratio of O is: 4:4:1:8;

[0062] Tetrabutyl titanate and isopropanol are mixed in a volume ratio of 1.2:2.5 to obtain a photocatalyst system;

[0063] Step 2, adding the photocatalytic system dropwise into the thermal catalytic system and stirring until a sol is formed to obtain the active component loading liquid;

[0064] Step 3. Add phosphoric acid and palladium to the active component loading liquid, stir vigorously for 8 hours, and the stirring speed is 500r / min; at room temperature, maintain for 5-6 hours to obtain the loaded precursor; phos...

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 relates to a VOCs separation and degradation film and a preparation method thereof, the preparation method comprises the following steps: adding copper nitrate, manganese nitrate and cerium nitrate into water, and stirring to obtain a thermocatalytic system; mixing tetrabutyl titanate with isopropanol to obtain a photocatalyst system; dropwise adding the photocatalytic system into the thermocatalytic system, and stirring to obtain an active component loading solution; adding an auxiliary agent and noble metal to obtain a loaded precursor; pretreating a ceramic microfiltration membrane to enable the pore size of the ceramic microfiltration membrane to be matched with the molecular size of VOCs, dipping and lifting in a load precursor to enable a thermal-photocatalyst to be naturally loaded on the ceramic microfiltration membrane, calcining and reducing to obtain the VOCs separation and degradation membrane. The thermal-photocatalyst is loaded on the ceramic microfiltrationmembrane, so that the pore diameter of the membrane is reduced, and VOCs gas separation and interception are met; and in-situ decomposition is carried out while organic pollutants are efficiently intercepted, so that the separation and degradation efficiency of VOCs molecules is effectively improved, and thorough degradation of VOCs is realized.

Description

technical field [0001] The invention belongs to the technical field of VOCs separation and degradation, and in particular relates to a VOCs separation and degradation film and a preparation method thereof. Background technique [0002] VOCs, volatile organic compounds, are common air pollutants in the chemical industry and one of the main sources of air pollution. In recent years, a number of technologies have been applied to the treatment of VOCs. Among them, thermal catalysis and photocatalytic oxidation can effectively degrade VOCs due to their strong oxidation ability. Among them, photocatalytic technology is a low-cost green common technology. The directions of governance, solar energy conversion and self-cleaning have great application prospects. [0003] At present, the separation efficiency of photogenerated carriers and surface reactivity of the existing photocatalytic method are not high, and a single technical method cannot completely degrade VOCs; while the ther...

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
IPC IPC(8): B01J23/89B01J35/06B01D53/86B01D53/44
CPCB01J23/8986B01D53/8687B01D2255/2065B01D2255/20761B01D2255/2073B01D2255/20707B01D2255/1021B01D2255/1023B01D2255/1025B01D2255/802B01D2257/708B01J35/39B01J35/59Y02A50/20
Inventor 刘嘉栋冯烁宜高波
Owner XI'AN UNIVERSITY OF ARCHITECTURE AND TECHNOLOGY
Features
  • Generate Ideas
  • 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