Unlock instant, AI-driven research and patent intelligence for your innovation.

In-situ growth preparation method of porous TiO2 nanocellulose network composite membrane

A nanocellulose and network composite technology, which is applied in the field of in-situ growth and preparation of porous TiO2 nanocellulose network composite membranes, can solve the problems of material preparation and application obstacles, the inability of catalytic materials to be closely combined with flexible substrate materials, etc. performance, promoting effects in the field of flexible wearable devices

Active Publication Date: 2021-07-27
ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004]However, the semiconductor materials currently used for photocatalysis or sensitive performance analysis are basically processed on the substrate material by coating method, which cannot make the catalytic material and flexible substrate The close combination of materials hinders the preparation and application of nano-TiO2 materials

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
  • In-situ growth preparation method of porous TiO2 nanocellulose network composite membrane
  • In-situ growth preparation method of porous TiO2 nanocellulose network composite membrane
  • In-situ growth preparation method of porous TiO2 nanocellulose network composite membrane

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0020] Example 1: A porous TiO 2 The in-situ growth preparation method of the nanochemical composite film, including the following steps:

[0021] S1, the purity is 99.99% TiO 2 The target is placed in a muffle furnace, the muffle furnace is heated to 450 ° C, holding 2h and cools with the furnace to prevent the target cracking;

[0022] S2, a nanochemical suspension of 100 ml of concentration of 0.1% was vacuum filtered, dried to obtain a nanocolyte membrane, and placed in a magnetron sputtering device, in step 1 in the annealing TiO 2 For the target, pure argon gas is introduced into the vacuum chamber, the sputtering power is 300 W, the sputtering time is 2 h, resulting in a raw material for the preparation of nanoporous materials;

[0023] After S3, step S2, the target of the magnetron sputtering device is replaced with a metal titanium target having a purity of 99.99%, and the material in step 2 is continued, and pure argon is introduced into the vacuum chamber. The power is ...

Embodiment 2

[0026] Example 2: A porous Tio 2 The in-situ growth preparation method of the nanochemical composite film, including the following steps:

[0027] S1, the purity is 99.99% TiO 2 The target is placed in a muffle furnace, the muffle furnace is heated to 450 ° C, holding 2h and cools with the furnace to prevent the target cracking;

[0028] S2, a nanochemical suspension of 100 ml of concentration of 0.1% was vacuum filtered, dried to obtain a nanocolyte membrane, and placed in a magnetron sputtering device, in step 1 in the annealing TiO 2 For the target, pure argon gas is introduced into the vacuum chamber, the sputtering power is 300W, and the sputtering time is 1 h;

[0029] After S3, step S2, the target of the magnetron sputtering device is replaced with a metal titanium target having a purity of 99.99%, and the material in step 2 is continued, and pure argon is introduced into the vacuum chamber. The power is 100W, the control sputtering time is 450s to obtain a composite film s...

Embodiment 3

[0032] Example 3: A porous TiO 2 The in-situ growth preparation method of the nanochemical composite film, including the following steps:

[0033] S1, the purity is 99.99% TiO 2 The target is placed in the muffle furnace, the muffle furnace is heated to 500 ° C, holding 3 hours and cools with the furnace to prevent the target cracking;

[0034] S2, a nanochemical suspension of 200 ml of concentration of 0.1% was vacuum filtered, dried to give a nanochemical membrane, and placed in a magnetron sputtering device, in step 1 in an annealing TiO 2 For the target, pure argon gas is introduced into the vacuum chamber, the sputtering power is 200W, and the sputtering time is 1 h;

[0035] After S3, step S2, the target of the magnetron sputtering device is replaced with a metal titanium target having a purity of 99.99%, and the material in step 2 is continued, and pure argon is introduced into the vacuum chamber. The power is 100W, the control sputtering time is 350s to obtain a composite ...

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
thicknessaaaaaaaaaa
pore sizeaaaaaaaaaa
pore sizeaaaaaaaaaa
Login to View More

Abstract

The invention discloses an in-situ growth preparation method of a porous TiO2 nanocellulose network composite membrane. The method comprises the following steps that S1, TiO2 is placed in an environment of 450-550 DEG C to be subjected to heat preservation for 2-4 h and is naturally cooled after heat preservation is finished; S2, vacuum suction filtration is performed on a nanocellulose suspension, drying is performed to obtain a nanocellulose membrane, the nanocellulose membrane is placed into a magnetron sputtering device, and magnetron sputtering is performed with the TiO2 in the step S1 used as a target material; S3, after S2 is finished, the target material in the magnetron sputtering device is replaced with metallic titanium, magnetron sputtering is conducted again, and a semi-finished composite membrane is obtained after magnetron sputtering; and S4, anodic oxidation is performed with the semi-finished product of the composite membrane used as an anode, a prepared sample is cleaned with deionized water after oxidation treatment, and a finished product is obtained through natural drying. According to the method, the TiO2 material and nanocellulose can be integrated, and the semiconductor material performance of the finished product is improved.

Description

Technical field [0001] The present invention relates to the field of semiconductor materials, and more particularly to a porous TiO 2 Non-cellulosic network composite film for the in situ growth preparation method. Background technique [0002] With the development of modern industrial technology, global environmental issues are increasingly highly high, and people's testing and governance techniques in the environment are more concerned. Nano-titanium dioxide (TIO 2 The advantages of its excellent photocatalytic properties, gas sensitivity, and no secondary pollution, becomes one of the hot semiconductor materials. In addition, due to porous irregular morphology TiO 2 Nanotubes have a large specific surface area, and the surface morphology is bound to be a promotion of photocatalytic performance, bringing more possibilities. Especially in the rapid development of flexible devices, how to ensure nano TiO 2 Based on the material characteristics, flexible functional materials is an...

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): C23C14/35C23C14/08C23C14/20C23C14/58C25D11/26
CPCC23C14/35C23C14/083C23C14/205C23C14/5846C25D11/26
Inventor 童欣王宏李静赵会芳田宇龙
Owner ZHEJIANG UNIVERSITY OF SCIENCE AND TECHNOLOGY