Cu/TiO2-NB nano porous ceramic film, and preparation method and application of nano porous ceramic film

A nanoporous, ceramic membrane technology, applied in chemical instruments and methods, permeation/dialysis water/sewage treatment, sterilization/microdynamic water/sewage treatment, etc., to improve visible light catalytic activity, improve separation performance, and solve biological swelling Effect

Inactive Publication Date: 2017-09-08
SHANDONG UNIV
View PDF5 Cites 21 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, based on the surface of titanium dioxide nanobelts loaded with copper nanoparticles as raw materials, nanopo

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
  • Cu/TiO2-NB nano porous ceramic film, and preparation method and application of nano porous ceramic film
  • Cu/TiO2-NB nano porous ceramic film, and preparation method and application of nano porous ceramic film
  • Cu/TiO2-NB nano porous ceramic film, and preparation method and application of nano porous ceramic film

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] A Cu / TiO 2 -The preparation method of NB nanoporous ceramic membrane, the steps are as follows:

[0039] (1) Disperse 2.4g of titanium dioxide (P25) evenly in 480mL of sodium hydroxide solution with a concentration of 10mol / L, and react with alkali heat in a constant temperature drying oven at 200°C for 72h to obtain sodium titanate nanobelts, and then place the sample in 1000mL concentration is acidified 24h in the hydrochloric acid solution of 0.1M, obtains titanic acid nanobelt, the scanning electron microscope SEM photo of the obtained titanic acid nanobelt is as follows figure 1 shown.

[0040] (2) Take 0.1 g of the above-mentioned titanate nanobelts in a circulating sleeve containing 100 mL of deionized water, and ultrasonically disperse to obtain a uniformly dispersed suspension, and then add 800 μL of Cu(CH 3 COO) 2 solution, continue to avoid light and stir for 2h, then adjust the pH to 8.5 with urea solution, age at 80°C for 4h, then suction filter, wash wi...

Embodiment 2

[0044] A Cu / TiO 2 -The preparation method of NB nanoporous ceramic membrane, as shown in embodiment 1, difference is:

[0045] Step (2) Take 0.1 g of titanate nanobelts in step (1) in a circulation sleeve containing 100 mL of deionized water, ultrasonically disperse to obtain a uniformly dispersed suspension, and then add Cu(CH 3 COO) 2 solution, continue to avoid light and stir for 2h, then adjust the pH to 8.5 with urea solution, age at 80°C for 4h, then suction filter, wash with water, dry and H 2 Reductive pretreatment to obtain Cu / TiO with 1 wt% copper loading 2 nanobelt.

[0046] The XRD pattern of the nanoporous ceramic membrane obtained by pressing and calcining is as follows image 3 shown by image 3 It can be seen that Example 1 and Example 2 show that copper is successfully loaded in the ceramic film. With the increase of copper loading (Example 2), the characteristic peak of the metal copper in the ceramic film is more obvious, and exists as metallic copper. ...

Embodiment 3

[0048] A Cu / TiO 2 -The preparation method of NB nanoporous ceramic membrane, as shown in embodiment 1, difference is:

[0049] Step (2) Take 0.1 g of titanate nanobelts in step (1) in a circulation sleeve containing 100 mL of deionized water, ultrasonically disperse to obtain a uniformly dispersed suspension, and then add Cu(CH 3 COO) 2 solution, continue to avoid light and stir for 2h, then adjust the pH to 8.5 with urea solution, age at 80°C for 4h, then suction filter, wash with water, dry and H 2 Reductive pretreatment to obtain Cu / TiO with 8 wt% copper loading 2 nanobelt.

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 Cu/TiO2-NB nano porous ceramic film, and a preparation method and an application of the nano porous ceramic film. The nano porous ceramic film is a hydrophilic porous ceramic film. The preparation method comprises the steps of synthesizing a titanic acid nanoribbon by a hydrothermal method, loading a metal copper nano particle on the surface of the titanic acid nanoribbon by a deposition-precipitation method, and finally tabletting and roasting a quantitative Cu/TiO2 nanoribbon. According to the nano porous ceramic film with the copper nano particle coupled with the TiO2 nanoribbon, loading of the copper nano particle improves absorption of TiO2 to visible light; the visible light catalytic activity of TiO2 is further improved; the nano porous ceramic film has sterilization and separation functions; and improvement and stabilization of produced water quality are facilitated.

Description

technical field [0001] The present invention relates to a kind of Cu / TiO 2 -NB nanoporous ceramic membrane and its preparation method and application, belonging to the technical field of new filter materials. Background technique [0002] Particle impurities and pathogenic microorganisms in drinking water pose a great threat to human health. Many human diseases are caused by bacteria and viruses transmitted by water bodies. Therefore, it is extremely important to maintain human health to remove harmful microorganisms and particulate impurities in drinking water and ensure drinking water safety. For the purification of bacteria and viruses in water, the traditional methods include ultraviolet sterilization and detoxification, the use of ozone or chlorine-containing, bromine-containing fungicides, etc., but the use of fungicides often produces toxic by-products, which pose new threats to human health (Environ .Sci.Technol.201448:11620-11628). At present, membrane separation...

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): B01D71/02B01D69/02B01D67/00B01D61/02C02F1/44C02F1/30C02F1/50
Inventor 许效红石春颖刘宏
Owner SHANDONG UNIV
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