Check patentability & draft patents in minutes with Patsnap Eureka AI!

CuO-TiO2/conducting polymer fiber compound photocatalyst and preparation method thereof

A conductive polymer, fiber composite technology, applied in organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, chemical instruments and methods, etc. Secondary pollution and other problems, to achieve the effect of low cost, easy recovery and high photocatalytic efficiency

Inactive Publication Date: 2012-10-24
HEFEI UNIV OF TECH
View PDF2 Cites 11 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In addition, due to the disadvantages of easy loss, difficulty in recovery and secondary pollution of the powder during the photocatalytic process, its wide application is limited.

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
  • CuO-TiO2/conducting polymer fiber compound photocatalyst and preparation method thereof
  • CuO-TiO2/conducting polymer fiber compound photocatalyst and preparation method thereof
  • CuO-TiO2/conducting polymer fiber compound photocatalyst and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0037] 1. Preparation of conductive polymer fibers

[0038] Add 3.6g PVDF, 0.4g SMA and 0.4g nano-graphite into a three-necked flask, then add 20.0mL N, N-dimethylacetamide and 14.0mL acetone as a mixed solvent, stir for 24 hours to obtain a spinning solution, and prepare by high-voltage electrospinning To obtain conductive polymer fibers, the high-voltage electrospinning voltage was 18kV, the receiving distance was 20cm, and the advancing speed was 1.0mL / h.

[0039] 2. TiO2 2 load

[0040] Add the conductive polymer fibers prepared in step 1 to a solution containing 40.0 mL, 0.5 mol·L -1 TiOSO 4 Soak in the autoclave of solution for 12h, make Ti 4+ Complexed with the carboxyl group on the surface of the fiber, reacted at 120°C for 8h, cooled to room temperature, ultrasonically cleaned 3 times with deionized water, and dried in vacuum at 60°C, the obtained loaded TiO 2 conductive polymer fibers.

[0041] 3. The load of CuO

[0042] Will load TiO 2 The conductive polyme...

Embodiment 2

[0045] 1. Preparation of conductive polymer fibers

[0046] Add 3.6g PVDF, 0.4g SMA and 0.6g nano-graphite into a three-necked flask, then add 20.0mL N,N-dimethylacetamide and 14.0mL acetone as a mixed solvent, stir for 24h to obtain a spinning solution, and prepare it by high-voltage electrospinning To obtain conductive polymer fibers, the high-voltage electrospinning voltage was 20kV, the receiving distance was 18cm, and the advancing speed was 0.8mL / h.

[0047] 2. TiO2 2 load

[0048] Add the conductive polymer fibers prepared in step 1 to a solution containing 40.0 mL, 0.25 mol·L -1 TiOSO 4 Soak in the autoclave of solution for 12h, make Ti 4+ Complexed with the carboxyl group on the surface of the fiber, reacted at 120°C for 8h, cooled to room temperature, ultrasonically cleaned 3 times with deionized water, and dried in vacuum at 60°C, the obtained loaded TiO 2 conductive polymer fibers.

[0049] 3. The load of CuO

[0050] Will load TiO 2 The conductive polymer ...

Embodiment 3

[0053] 1. Preparation of conductive polymer fibers

[0054] The preparation method is the same as in Example 1.

[0055] 2. TiO2 2 load

[0056] Add the conductive polymer fibers prepared in step 1 to a solution containing 40.0 mL, 0.5 mol·L -1 TiOSO 4 Soak in the autoclave of solution for 12h, make Ti 4+ Complexed with the carboxyl group on the surface of the fiber, reacted at 120°C for 8h, cooled to room temperature, ultrasonically cleaned 3 times with deionized water, and dried in vacuum at 60°C, the obtained loaded TiO 2 conductive polymer fibers.

[0057] 3. The load of CuO

[0058] Will load TiO 2 The conductive polymer fiber is put into the solution containing 20.0mL, 0.02mol·L -1 Cu(Ac) 2 and 20.0mL, 0.02mol L -1 In the high-pressure reactor of the mixed solution of urea, react at 120 ° C for 4 h, after cooling to room temperature, use deionized water to ultrasonically clean 3 times, and vacuum dry at 60 ° C to obtain CuO-TiO 2 / Conductive polymer fiber com...

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 discloses a CuO-TiO2 / conducting polymer fiber compound photocatalyst, wherein the compound photocatalyst is obtained by load-distributing a CuO-TiO2 compound semiconductor on the surface of a conducting polymer fibrous membrane through a chemical bond complexing form. The conducting polymer fibrous membrane is obtained by carrying out high-voltage electrostatic spinning after mixing of a polymer and nanometer graphite, and has a fiber diameter of 400 nanometers to 2 micrometers. According to the invention, the conductivity and heterojunction of the conducting polymer fiber is utilized, so that benefit is brought to electron hole separation and the catalytic efficiency of a catalyst is improved.

Description

1. Technical field [0001] The present invention designs a kind of photocatalyst and preparation method thereof, specifically a kind of CuO-TiO 2 / Conductive polymer fiber composite photocatalyst and preparation method thereof. 2. Background technology [0002] TiO since 1972 2 Since it was discovered that it can be used as a photocatalyst, nano-TiO 2 Photocatalytic degradation of pollutants has been widely valued by researchers at home and abroad. However, due to TiO 2 The energy band width of TiO is 3.2eV, and it can only absorb photons with a wavelength of less than 384nm, while the ultraviolet radiation reaching the earth's surface only accounts for about 4% of the entire solar spectrum, so TiO 2 The efficiency of utilizing sunlight is greatly limited. [0003] Recent studies have shown that binary semiconductor recombination is an effective means to enhance photocatalytic activity. TiO 2 Combining with a semiconductor with a narrow energy band width can extend 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
IPC IPC(8): B01J31/38B01J35/06
Inventor 周正发胡伟徐卫兵杨洁李唐卉任凤梅
Owner HEFEI UNIV OF TECH
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