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Neodymium-doped titanium dioxide/carbon hybrid aerogel material, preparation method and application

A titanium dioxide and carbon aerogel technology, applied in the field of materials science, can solve problems such as phase transition, and achieve the effects of simple preparation process, low production cost and improved effect

Inactive Publication Date: 2016-08-24
SHANGHAI INST OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The titanium dioxide / carbon hybrid airgel material in the prior art has a good response to visible light, but the titanium dioxide with anatase structure is easy to cause phase change at high temperature

Method used

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  • Neodymium-doped titanium dioxide/carbon hybrid aerogel material, preparation method and application
  • Neodymium-doped titanium dioxide/carbon hybrid aerogel material, preparation method and application
  • Neodymium-doped titanium dioxide/carbon hybrid aerogel material, preparation method and application

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Embodiment 1

[0035] A neodymium-doped titanium dioxide / carbon hybrid airgel material, composed of neodymium that has not formed crystals, amorphous carbon and anatase titanium dioxide, and calculated by mass ratio, wherein amorphous carbon: anatase titanium dioxide: Neodymium that has not formed crystals is 1:0.6:0.04-0.20.

[0036] The above-mentioned preparation method of a titanium dioxide / carbon hybrid airgel material doped with neodymium is to use resorcinol and sodium carbonate as raw materials, and formaldehyde as a catalyst to prepare carbon airgel by sol-gel method, and then use Titanium tetrachloride is the titanium source precursor, neodymium nitrate is the dopant, and absolute ethanol is the solvent. The neodymium-doped titanium dioxide / carbon hybrid airgel material with mesoporous structure is prepared by impregnation.

[0037] The preparation method of the above-mentioned neodymium-doped titanium dioxide / carbon hybrid airgel material specifically comprises the following steps...

Embodiment 2

[0086] A neodymium-doped titanium dioxide / carbon hybrid airgel material, composed of neodymium that has not formed crystals, amorphous carbon and anatase titanium dioxide, and calculated by mass ratio, wherein amorphous carbon: anatase titanium dioxide: Neodymium that has not formed crystals is 1:0.6:0.04-0.20.

[0087] The preparation method of the above-mentioned neodymium-doped titanium dioxide / carbon hybrid airgel material, promptly takes resorcinol and sodium carbonate as raw material, and formaldehyde is catalyst, makes carbon airgel by sol-gel method, then with tetrachloromethane TiO2 is used as the titanium source precursor, neodymium nitrate is used as the dopant, and absolute ethanol is used as the solvent. The neodymium-doped titanium dioxide / carbon hybrid airgel material with mesoporous structure is prepared by impregnation.

[0088] The preparation method of the above-mentioned neodymium-doped titanium dioxide / carbon hybrid airgel material specifically comprises t...

Embodiment 3

[0106] A neodymium-doped titanium dioxide / carbon hybrid airgel material, composed of neodymium that has not formed crystals, amorphous carbon and anatase titanium dioxide, and calculated by mass ratio, wherein amorphous carbon: anatase titanium dioxide: Neodymium that has not formed crystals is 1:0.6:0.04-0.20.

[0107] The preparation method of the above-mentioned a kind of neodymium-doped titanium dioxide / carbon hybrid airgel material, promptly takes resorcinol and sodium carbonate as raw material, and formaldehyde is catalyst, makes carbon airgel by sol-gel method, then with Titanium tetrachloride is the titanium source precursor, neodymium nitrate is the dopant, and absolute ethanol is the solvent. The neodymium-doped titanium dioxide / carbon hybrid airgel material with mesoporous structure is prepared by impregnation.

[0108] The preparation method of the above-mentioned neodymium-doped titanium dioxide / carbon hybrid airgel material specifically comprises the following st...

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Abstract

The invention provides a neodymium-doped titanium dioxide / carbon hybrid aerogel material prepared from neodymium no forming crystals, amorphous carbon and anatase titanium dioxide with the mass ratio of 1:0.6:(0.04-0.020). The invention further provides a preparation method of the aerogel material. The preparation method comprises the steps that resorcinol and sodium carbonate are used as raw materials, formaldehyde is used a catalyst, a sol-gel method is used for preparing carbon aerogel, then, titanium tetrachloride is used as a titanium source precursor, neodymium nitrate is used as a doping agent, absolute ethyl alcohol is used as a solvent, and a dipping method is used for prepareing the neodymium-doped titanium dioxide / carbon hybrid aerogel material of a mesoporous structure. The material is used for visible light or ultraviolet light catalytic degradation of organic dye, and has better light catalytic performance compared with a single nanometer titanium dioxide / carbon hybrid aerogel material in the aspects of light catalytic degradation of organic dye; in addition, the preparation process is simple, and the production cost is low.

Description

technical field [0001] The invention belongs to the field of material science, and relates to an airgel material, specifically a neodymium-doped titanium dioxide / carbon hybrid airgel material and a preparation method thereof. Background technique [0002] Airgel generally refers to a lightweight nano-solid-state material with a nanoporous network formed by the aggregation of nanoparticles as the skeleton, and filled with a gaseous dispersion medium in the network skeleton pores. Nanomaterials are a new type of material that emerged in the 1980s. Its excellent performance has aroused keen attention from all over the world, and it is even believed that it will change our lives. The nanoscale refers to the range of 1-100nm. At this scale, substances will exhibit effects different from macroscopic substances and microscopic particles, such as: surface effects, quantum effects, small size effects, dielectric confinement effects, and macroscopic quantum tunneling. effect. These ...

Claims

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Application Information

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IPC IPC(8): B01J13/00B01J20/28B01J20/20B01J20/30C02F1/30C02F1/32B01J21/06B01J21/18C02F101/30
CPCB01J13/0091B01J20/20C02F1/30C02F1/32B01J20/28047B01J21/063B01J21/18C02F2101/308B01J35/39
Inventor 邵霞郑励张志丽张睿金双玲
Owner SHANGHAI INST OF TECH