Preparation method and application of fiber composite membrane catalyst

A fiber composite and catalyst technology, which is applied in chemical instruments and methods, organic compound/hydride/coordination complex catalysts, physical/chemical process catalysts, etc., can solve the problems of reduced catalytic performance, easy agglomeration, etc. , to avoid agglomeration, the effect of high catalytic efficiency
CN108940374AInactive Publication Date: 2018-12-07SHAANXI UNIV OF SCI & TECH
3 Cites 15 Cited by

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
SHAANXI UNIV OF SCI & TECH
Publication Date
2018-12-07
Estimated Expiration
Not applicable · inactive patent

Smart Images

  • Figure 1
    Figure 1
  • Figure 2
    Figure 2
  • Figure 3
    Figure 3
Patent Text Reader

Abstract

A preparation method of a fiber composite membrane catalyst is as follows: firstly, cellulose fiber is subjected to carboxymethylation treatment, a large amount of carboxyl groups are introduced, metal organic framework MOFs are synthesized in situ on the fiber by immersion stirring, nano-Ag (Ag NPs) is loaded and dispersed on the MOFs by microwave reduction, and a nano-paper-based composite filmcatalytic material is finally obtained by washing, suction filtration, and paper making and forming; the practical size of the Ag nano-particles is between 6 and 20 nm, and rapid catalytic degradationand conversion of p-nitrophenol in wastewater to p-aminophenol can be realized by synergistic effects of the MOFs and the Ag nano-particles. The primary conversion rate is over 99%. Compared with a traditional granular catalyst, and the problems of difficult recovery, short catalytic time and high efficiency can be solved. The fiber composite membrane catalyst can be used as a filler to prepare acatalytic membrane material by mixing for paper making with other plant fibers. The catalytic membrane material has broad application prospects in the field of treating industrial wastewater.
Need to check novelty before this filing date? Find Prior Art

Description

technical field

[0001] The invention belongs to the technical field of nanocomposite material preparation and catalytic degradation, and in particular relates to a preparation method and application of a fiber composite membrane catalyst. Background technique

[0002] With the continuous development of industry, serious water pollution problems continue to appear around the world, especially in developing countries. The problem of water pollution has become the first problem to be solved in the work of environmental governance. Phenol-containing wastewater is the main source of water pollution because of its high toxicity, difficult to degrade, complex components, and long residence time in the environment. Taking p-nitrophenol as an example, it is used as the main pharmaceutical raw material for the production of pharmaceutical intermediate p-nitrophenol ether and the one-step synthesis of anti-inflammatory and analgesic paracetamol, and it is also a raw material for the p...

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