A kind of preparation method of aldehyde removal catalyst

A technology of catalyst and complexing agent, which is applied in the field of preparation of aldehyde-removing catalysts, can solve the problems of reduced effective utilization of precious metals, no improvement in the dispersion of metal oxides, no strong interaction, etc., and achieves hydrogen-saving high-temperature reduction activation process , promote adsorption and further oxidation, and enhance the effect of electron transfer rate
CN112774691BActive Publication Date: 2022-04-19NINGBO FOTILE KITCHEN WARE CO LTD
17 Cites 0 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
NINGBO FOTILE KITCHEN WARE CO LTD
Publication Date
2022-04-19

Smart Images

  • Figure 1
    Figure 1
Patent Text Reader

Abstract

The invention relates to a preparation method of an aldehyde-removing catalyst, comprising the following steps: (1) dispersing graphene oxide in deionized water, then adding an aqueous solution of sodium carbonate dropwise thereto, and adjusting the pH value of the solution to 9-10, which is recorded as Solution A; (2) Disperse metal salt and complexing agent in deionized water, then add platinum precursor solution, stir evenly, record as solution B; (3) add solution B to solution A, stir evenly to form Solution C; (4) move solution C into a hydrothermal kettle, and keep it warm at 90-200°C for 8-24 hours; (5) separate solid-liquid from the heated solution C obtained in step (4), and freeze the separated solid substance drying; (6) calcining the dried solid matter obtained in step (5) at 200-500° C. for 1-4 hours in a nitrogen atmosphere to obtain the catalyst. In the preparation process, the present invention completes carrier preparation and impregnation loading in one step, which reduces the process and saves time and energy.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of air purification, and in particular relates to a preparation method of an aldehyde-removing catalyst. Background technique

[0002] With the changes in people's living conditions and working methods, people spend most of their time indoors nowadays, so indoor air quality is very important. As we all know, formaldehyde is a major pollutant that causes indoor air pollution. Wall coatings, artificial panels, textiles, decoration accessories, and some human activities will release formaldehyde, making indoor air quality worse. Long-term exposure to an environment containing formaldehyde can cause serious harm to people's health, such as acute poisoning, decreased immunity, chronic poisoning, decreased blood cell count, infertility, fetal malformation, chromosomal aberrations, cancer, etc. Therefore, the removal of indoor formaldehyde is very important.

[0003] So far, the commonly used methods for indoor f...

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