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Preparation method of platinum-loading citrus grandis peel activated carbon catalyst for room-temperature degradation of formaldehyde in air

The technology of activated carbon and catalyst is applied in the field of preparation of platinum-loaded grapefruit shell activated carbon catalyst for degrading formaldehyde in air at room temperature, which can solve the problems of high cost, complicated preparation process and the like, and achieves low cost, simple preparation process and wide source of raw materials. Effect

Active Publication Date: 2016-06-15
张晓菁
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

These catalysts are often prepared with extremely complex processes and high costs.

Method used

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  • Preparation method of platinum-loading citrus grandis peel activated carbon catalyst for room-temperature degradation of formaldehyde in air
  • Preparation method of platinum-loading citrus grandis peel activated carbon catalyst for room-temperature degradation of formaldehyde in air

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] A preparation method of a platinum-loaded grapefruit shell activated carbon catalyst for degrading formaldehyde in air at room temperature, comprising the following steps:

[0023] 1) Weigh 10 g of dried and finely ground pomelo shell powder, add it to 100 mL of deionized water, then add 10% chloroplatinic acid solution at a mass ratio of metal platinum to pomelo shell of 0.3%, and magnetically stir for 2 h ;

[0024] 2) drying the obtained suspension at 70°C for 12 hours, and evaporating the solution;

[0025] 3) The obtained powder was calcined at 550° C. for 2 hours in a nitrogen atmosphere to obtain a platinum-supported grapefruit shell activated carbon catalyst for degrading formaldehyde at room temperature.

[0026] Get 0.15 g of the platinum-loaded grapefruit shell activated carbon catalyst synthesized in this example, and carry out the room temperature degradation test of formaldehyde according to the method described above, and the degradation rate of formalde...

Embodiment 2

[0028] A preparation method of a platinum-loaded grapefruit shell activated carbon catalyst for degrading formaldehyde in air at room temperature, comprising the following steps:

[0029] 1) Weigh 10 g of dried and finely ground pomelo shell powder, add it to 100 mL of deionized water, then add 10% chloroplatinic acid solution at a mass ratio of metal platinum to pomelo shell of 0.7%, and magnetically stir for 2 h ;

[0030] 2) drying the obtained suspension at 70°C for 12 hours, and evaporating the solution;

[0031] 3) The obtained powder was calcined at 550° C. for 2 hours in a nitrogen atmosphere to obtain a platinum-supported grapefruit shell activated carbon catalyst for degrading formaldehyde at room temperature.

[0032] Get 0.15 g of the platinum-loaded grapefruit shell activated carbon catalyst synthesized in this example, and carry out the room temperature degradation test of formaldehyde according to the method described above, and the degradation rate of formalde...

Embodiment 3

[0034] A preparation method of a platinum-loaded grapefruit shell activated carbon catalyst for degrading formaldehyde in air at room temperature, comprising the following steps:

[0035] 1) Weigh 10 g of dried and finely ground pomelo shell powder, add it to 100 mL of deionized water, then add 10% chloroplatinic acid solution at a mass ratio of metal platinum to pomelo shell of 1.0%, and magnetically stir for 2 h ;

[0036] 2) drying the obtained suspension at 70°C for 12 hours, and evaporating the solution;

[0037] 3) The obtained powder was calcined at 550° C. for 2 hours in a nitrogen atmosphere to obtain a platinum-supported grapefruit shell activated carbon catalyst for degrading formaldehyde at room temperature. attached figure 1 Prove that the Pt in it is the zero-valent metal Pt.

[0038] Get 0.15g of the platinum-loaded grapefruit shell activated carbon catalyst synthesized in this example, and carry out the room temperature degradation test of formaldehyde accor...

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Abstract

The invention relates to a preparation method of a platinum-loading citrus grandis peel activated carbon catalyst for room-temperature degradation of formaldehyde in air. The preparation method includes steps: step 1, adding a certain quantity of dried and ground citrus grandis peels into deionized water according to a mass ratio of 10%, adding a chloroplatinic acid solution with the concentration being 10%, and magnetically stirring for 2h, wherein the mass ratio of metal platinum to the citrus grandis peels is 0.3%-1.2%; step 2, drying suspension liquid obtained at the step 1 for 12h in an environment with the temperature of 70 DEG C, and evaporating to dry the solution; step 3, putting powder obtained at the step 2 in a nitrogen atmosphere, and roasting for 2h at the temperature of 450-600 DEG C.

Description

technical field [0001] The invention discloses a method for preparing a platinum-loaded grapefruit shell activated carbon catalyst for degrading formaldehyde in the air at room temperature, and belongs to the technical fields of environmental pollutant purification, environmental protection, and new catalyst materials. Background technique [0002] Formaldehyde is a common indoor air pollutant, which is very harmful to people's health. With the continuous improvement of modern living standards, people are increasingly pursuing home decoration. However, the boards, coatings or adhesives used in a large number of decoration projects may release a large amount of formaldehyde gas indoors, thereby threatening people's health. How to effectively remove formaldehyde in indoor air has attracted much attention in recent years. The catalyst loaded with nano-metal platinum can effectively activate oxygen molecules in the air because of the Pt in it combined with the synergistic supp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J23/42B01D53/86B01D53/72
CPCB01D53/8668B01D2258/06B01J23/42
Inventor 张晓菁
Owner 张晓菁
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