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Mixed titanate nanoribbon supported metal palladium nanoparticle overall catalyst as well as preparation method and application thereof

A monolithic catalyst, palladium nanoparticle technology, applied in catalyst activation/preparation, metal/metal oxide/metal hydroxide catalysts, chemical instruments and methods, etc. question

Inactive Publication Date: 2018-10-30
SHANDONG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these catalysts still have defects such as low catalytic activity.
[0006] At present, there has not been any report on the application of titanate-supported metal catalysts in the oxidative degradation of formaldehyde.

Method used

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  • Mixed titanate nanoribbon supported metal palladium nanoparticle overall catalyst as well as preparation method and application thereof
  • Mixed titanate nanoribbon supported metal palladium nanoparticle overall catalyst as well as preparation method and application thereof
  • Mixed titanate nanoribbon supported metal palladium nanoparticle overall catalyst as well as preparation method and application thereof

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Embodiment Construction

[0009] The present invention is achieved through the following technical solutions:

[0010] A mixed titanate nanobelt loaded metal palladium nanoparticle monolithic catalyst, the microstructure of the catalyst is that the metal Pd nanoparticle is highly dispersed and loaded on the surface of the mixed titanate nanobelt to form a Pd / MTiOx one-dimensional nanostructure; wherein , the mixed titanate nanobelt has a length of 5-10 μm, a width of 50-200nm, and a thickness of 10-50nm; the metal Pd load is 0.1-5wt.%, and the Pd nanoparticle size is 1-2.5nm.

[0011] Preferably according to the present invention, the macroscopic structure of the catalyst is a paper sheet with a diameter of 7.5-24 mm and a thickness of 0.5-1.5 mm, and a pore diameter of 100-200 nm.

[0012] According to the present invention, the preparation method of mixed titanate nanobelt supported metal palladium nanoparticles monolithic catalyst comprises the following steps:

[0013] (1) Preparation of mixed tit...

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Abstract

The invention relates to a mixed titanate nanoribbon supported metal palladium nanoparticle overall catalyst as well as a preparation method and application thereof. The method comprises the followingsteps: firstly, synthesizing titanate nanoribbons by using a hydrothermal method, preparing mixed titanate nanoribbons by using an ion exchange method, supporting metal palladium nanoparticles on themixed titanate nanoribbons as a carrier surface to form a Pd / MTiOx one-dimensional nano structure, and carrying out filtration pressing, thereby obtaining a porous paper-like overall catalyst. Activemetallic particles of the catalyst provided by the invention are highly dispersed into the carrier surface, and the catalyst is small in size, uniform in size and good in catalysis activity and stability; due to adoption of the paper-like porous structure, the catalyst has a high porosity, a large specific surface area, good permeability and excellent hydromechanic properties as a whole; the catalyst is simple in preparation process, easy to recycle and repeatedly use, and applicable to large-scale industrial application.

Description

Technical field: [0001] The invention relates to a mixed titanate nanobelt loaded metal palladium nanoparticle monolithic catalyst and a preparation method and application thereof, belonging to the technical field of chemical catalysis. Background technique: [0002] Formaldehyde is an indoor organic pollutant that poses a serious threat to human health. In buildings or sealed car bodies, various decoration, decoration materials and daily necessities will continuously emit formaldehyde. Therefore, the research on efficient formaldehyde elimination technology has been widely concerned. Among them, catalytic oxidation degradation of formaldehyde at room temperature has been proved to be an effective way. [0003] Compared with adsorption method, absorption method, negative ion oxidation method, ozone catalytic oxidation method, biological filtration plant purification method, low temperature plasma method and photocatalytic oxidation method to eliminate formaldehyde, formald...

Claims

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Application Information

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IPC IPC(8): B01J23/58B01J35/10B01J37/10B01J37/30B01J37/03B01D53/86B01D53/72B82Y30/00
CPCB01D53/8668B82Y30/00B01J23/58B01J37/035B01J37/10B01J37/30B01D2257/708B01D2257/704B01J35/60
Inventor 许效红何淑仁
Owner SHANDONG UNIV
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