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A platinum-loaded single-mass paper-based carbon fiber for catalytic degradation of formaldehyde and its preparation and application

A paper-based carbon fiber, catalytic degradation technology, applied in catalyst activation/preparation, chemical instruments and methods, physical/chemical process catalysts, etc., can solve problems such as pollution, and achieve the effects of low cost, green synthesis process, and large specific surface area

Active Publication Date: 2022-05-24
SOUTH CHINA UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, most of the reducing agents for reducing chloroplatinic acid are organic substances such as formic acid and methanol, which are seriously polluted

Method used

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  • A platinum-loaded single-mass paper-based carbon fiber for catalytic degradation of formaldehyde and its preparation and application
  • A platinum-loaded single-mass paper-based carbon fiber for catalytic degradation of formaldehyde and its preparation and application
  • A platinum-loaded single-mass paper-based carbon fiber for catalytic degradation of formaldehyde and its preparation and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] (1) Soak 2g of sisal pulp board in distilled water for 24h, dipped in 30g / L sodium periodate solution after dissolving, filter after reaction for 2h, soak in 10g / L glycerin solution and stir for 60min, then Soak in distilled water for 12h, filter and dry to obtain dialdehyde oxidized sisal fiber.

[0039] (2) The sisal fibers oxidized by dialdehyde were immersed in 0.3 g / L chloroplatinic acid solution, and condensed and refluxed at 100 °C for 3 h. After the reaction is completed, filter, wash three times with distilled water, and dry to obtain platinum-loaded sisal fiber.

[0040] (3) Weigh 4.4g of platinum-loaded sisal fiber, soak it in distilled water for 24h, and make paper after dredging, and its weight is 140g / m 2 , and air-dried at room temperature for 48 hours to obtain platinum-loaded paper-based sisal fibers.

[0041] (4) Placing the platinum-loaded paper-based sisal fiber in a tube furnace, in N 2 Under the protection, it was heated to 280 °C at a heating r...

Embodiment 2

[0045](1) Soak 2g softwood pulp board in distilled water for 24h, soak it in 20g / L sodium periodate solution after dissolving, filter after reacting for 1h, then soak in 7g / L glycerin solution and stir for 60min, Then soak in distilled water for 12h, filter and dry to obtain sisal fiber oxidized by dialdehyde.

[0046] (2) The sisal fiber oxidized by dialdehyde was immersed in a 0.2 g / L chloroplatinic acid solution, and stirred at 100° C. for 4 h. After the reaction is completed, filter, wash three times with distilled water, and dry to obtain platinum-loaded sisal fibers.

[0047] (3) Weigh 2.8g of platinum-loaded sisal fiber and soak it in distilled water for 24h, and make paper after dissolving, and its weight is 90g / m 2 , and dried at 40 °C for 48 h to obtain platinum-loaded paper-based sisal fibers.

[0048] (4) The platinum-loaded paper-based sisal fiber was placed in a tube furnace, in N 2 It was heated to 260°C at a heating rate of 10°C / min under the protection of ...

Embodiment 3

[0052] (1) Soak 1g of sisal pulp board in distilled water for 24h, immerse it in 15g / L sodium periodate solution after dissolving, filter after stirring for 6h, then soak in 5g / L glycerol solution and stir for 60min, Then soak in distilled water for 12h, filter and dry to obtain sisal fiber oxidized by dialdehyde.

[0053] (2) The sisal fiber oxidized by dialdehyde was immersed in 1 g / L chloroplatinic acid solution, and stirred at 130° C. for 5 h. After the reaction is completed, filter, wash 5 times with distilled water, and dry to obtain platinum-loaded sisal fiber.

[0054] (3) Weigh 3g of platinum-loaded sisal fiber and soak it in distilled water for 24h, and make paper after decompression, and its weight is 100g / m 2 , and dried at 40 °C for 48 h to obtain platinum-loaded paper-based sisal fibers.

[0055] (4) Placing the platinum-loaded paper-based sisal fiber in a tube furnace, in N 2 Heated to 280°C at a heating rate of 18°C / min under the protection of Heating at 40...

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Abstract

The invention discloses a platinum-loaded single-substance paper-based carbon fiber for catalytic degradation of formaldehyde and its preparation and application. In the present invention, wood fiber oxidized by dialdehyde is used as a carrier and a reducing agent, and chloroplatinic acid is reduced in situ to prepare a supported platinum-based catalyst, which is then subjected to papermaking, carbonization and activation to prepare platinum-loaded paper-based activated carbon fibers. It was then applied to the catalytic degradation of formaldehyde. The method of the invention has the advantages of green synthesis and low cost, and has good industrial application prospects.

Description

technical field [0001] The invention belongs to the field of supported catalysts, and in particular relates to a supported platinum simplex paper-based carbon fiber for catalytic degradation of formaldehyde and its preparation and application. The present invention uses dialdehyde-oxidized wood fibers as a carrier and a reducing agent, reduces chloroplatinic acid in situ, and prepares a supported platinum-based catalyst, which is paper-made, carbonized and activated to prepare a platinum-supported paper-based activated carbon fiber. Pt-loaded paper-based activated carbon fibers act as formaldehyde degradation catalysts, which can adsorb and catalyze formaldehyde degradation in situ. Background technique [0002] With the development of the world economy, environmental problems have become more and more serious. Among pollution sources, volatile organic compounds (V°Cs) gases are atmospheric pollutants that are harmful to humans and the environment. Therefore, it is necessa...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/42B01J35/06B01J37/02B01J37/08B01J37/16B01D53/86B01D53/72
CPCB01J23/42B01J37/084B01J37/08B01J37/16B01J37/0201B01D53/8668B01J35/58
Inventor 任俊莉张晓郑润林琦璇刘昕昕
Owner SOUTH CHINA UNIV OF TECH