Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

A method and application of preparing dandelion-like fe3o4@zno core-shell structure complex based on heterogeneous nucleation method

A dandelion-shaped, core-shell structure technology, applied in chemical instruments and methods, water treatment of special compounds, chemical/physical processes, etc., can solve the problems of difficult recycling and high cost of wastewater treatment, and achieve easy control, uniform appearance, and low cost effect

Inactive Publication Date: 2018-10-02
HARBIN INST OF TECH
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that the existing ZnO is not easy to recycle and the cost of wastewater treatment is high after it is used for wastewater treatment, and to provide a method for preparing dandelion-shaped Fe based on heterogeneous nucleation method. 3 o 4 Methods and applications of @ZnO core-shell complexes

Method used

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
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A method and application of preparing dandelion-like fe3o4@zno core-shell structure complex based on heterogeneous nucleation method
  • A method and application of preparing dandelion-like fe3o4@zno core-shell structure complex based on heterogeneous nucleation method
  • A method and application of preparing dandelion-like fe3o4@zno core-shell structure complex based on heterogeneous nucleation method

Examples

Experimental program
Comparison scheme
Effect test

specific Embodiment approach 1

[0035] Specific implementation mode 1: This implementation mode is a method for preparing dandelion-like Fe based on heterogeneous nucleation method 3 o 4 The @ZnO core-shell complex method is done in the following steps:

[0036] 1. Preparation of Fe 3 o 4 Nanoparticles:

[0037] FeCl 3 ·6H 2Dissolve O and anhydrous sodium acetate in ethylene glycol, and then stir and react at a stirring speed of 300r / min to 400r / min for 20min to 40min to obtain a mixed solution A; add the mixed solution A to a polytetrafluoroethylene reactor , then react at a temperature of 200°C for 6h to 9h, and then naturally cool to room temperature to obtain the reactant I; use anhydrous ethanol to wash the reactant I for 3 to 5 times, and then at a temperature of 60°C to 70°C Vacuum drying for 10h ~ 12h to obtain Fe 3 o 4 Nanoparticles;

[0038] FeCl as described in step 1 3 ·6H 2 The mass ratio of O to the volume of ethylene glycol is (2g~3g):100mL;

[0039] The mass of anhydrous sodium ac...

specific Embodiment approach 2

[0057] Specific embodiment two: the difference between this embodiment and specific embodiment one is: the FeCl described in step one 3 ·6H 2 The mass of O and the volume ratio of ethylene glycol are 2.7g:100mL. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0058] Specific embodiment three: the difference between this embodiment and specific embodiment one or two is: the mass of anhydrous sodium acetate described in step one and the volume ratio of ethylene glycol are 7.2g:100mL. Other steps are the same as those in Embodiment 1 or 2.

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

PUM

PropertyMeasurementUnit
particle diameteraaaaaaaaaa
Login to View More

Abstract

A method and application for preparing a dandelion-like Fe3O4@ZnO core-shell structure composite based on a heterogeneous nucleation method. It relates to a method and application for preparing a core-shell structure composite. The purpose of the present invention is to solve the problems of difficulty in recycling existing ZnO and high cost of wastewater treatment after it is used for wastewater treatment. Methods: 1. Preparation of Fe3O4 nanoparticles; 2. Preparation of ZnO seed crystals; 3. Growth of ZnO nanorod crystals to obtain a dandelion-like Fe3O4@ZnO core-shell structure composite. The method is simple to operate, easy to control, low in cost, and non-toxic. The prepared dandelion-like Fe3O4@ZnO core-shell structure composite has uniform morphology, superparamagnetism, convenient product extraction, good repeatability, and has important display significance. The invention can obtain a dandelion-like Fe3O4@ZnO core-shell structure composite.

Description

technical field [0001] The invention relates to a method and application for preparing a core-shell structure compound. Background technique [0002] With the rapid development of industrialization and society, environmental problems have become one of the major problems facing human society today, and the soil and water pollution caused by organic dyes has seriously affected people's health and survival. At present, physical and chemical methods and biological methods are often used to solve the environmental problems caused by organic dyes, but these methods usually cause secondary pollution to the environment. Photocatalytic degradation can effectively decompose organic dyes into H 2 O and CO 2 and other inorganic substances, so it has broad application prospects in the field of sewage treatment. The materials currently used for photocatalysis mainly include TiO 2 , CdS, ZnO and WO 3 and other n-type semiconductor compounds. [0003] ZnO is a new type of wide-bandga...

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

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): B01J23/80B01J35/10C02F1/32
CPCC02F1/32C02F1/725B01J23/80C02F2305/10B01J35/33B01J35/60B01J35/39
Inventor 韩晓军崔新宇
Owner HARBIN INST OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com