Barium silicate microspheres as well as preparation method and application thereof

A technology of barium silicate and microspheres, applied in silicates, alkaline earth metal silicates, chemical instruments and methods, etc., can solve problems such as high energy consumption, environmental pollution, and complicated synthesis steps, and achieve low energy consumption, Strong controllability and good adsorption effect

Inactive Publication Date: 2021-05-07
QUFU NORMAL UNIV
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Therefore, the technical problem to be solved in the present invention is to overcome the defects of high energy consumption, complex synthesis steps and environmental pollution in the preparation method of barium silicate microspheres in the prior art, thereby providing a barium silicate microsphere and its preparation method and application

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
  • Barium silicate microspheres as well as preparation method and application thereof
  • Barium silicate microspheres as well as preparation method and application thereof
  • Barium silicate microspheres as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] A barium silicate (Ba 5 Si 8 o 21 ) microspheres, the preparation method of which is as follows:

[0040] (1) 5mmol BaCl 2 and 10 mmol Na 2 SiO 3 The solid was added to 30mL and 20mL deionized water respectively, and after magnetic stirring (300r / min) for 20min, colorless and clear solutions A and B were obtained;

[0041] (2) Under magnetic stirring at 300r / min, add solution B dropwise to solution A at a rate of 10 drops / min, and continue stirring at 20°C for 10 minutes to obtain white suspension C;

[0042] (3) The suspension C was transferred to a polytetrafluoroethylene liner for sealing, and under the condition that the rotation frequency of the homogeneous reactor (JXF-0-200) was 10Hz, the temperature was raised to 120°C at a heating rate of 5°C / min. After constant temperature reaction for 6.0 h, it was naturally cooled to room temperature to obtain a hydrothermal product;

[0043] (4) The hydrothermal product was washed 3 times with deionized water and 1 t...

Embodiment 2

[0047] A barium silicate (Ba 5 Si 8 o 21 ) microspheres, the preparation method of which is as follows:

[0048] (1) 2.5mmol BaCl 2 and 5 mmol Na 2 SiO 3 The solid was added to 30mL and 20mL deionized water respectively, and magnetically stirred (250r / min) for 25min to obtain colorless and clear solutions A and B;

[0049] (2) Under magnetic stirring at 250r / min, add solution B dropwise to solution A at a rate of 20 drops / min, and continue stirring at 18°C ​​for 10 minutes to obtain white suspension C;

[0050] (3) Transfer the suspension C to a polytetrafluoroethylene liner and seal it. Under the condition that the rotation frequency of the homogeneous reactor (JXF-0-200) is 10Hz, the temperature is raised to 200°C at a heating rate of 8°C / min. After constant temperature reaction for 6.0 h, it was naturally cooled to room temperature to obtain a hydrothermal product;

[0051] (4) The hydrothermal product was washed twice with deionized water, washed twice with absolute...

Embodiment 3

[0055] A barium silicate (Ba 5 Si 8 o 21 ) microspheres, the preparation method of which is as follows:

[0056] (1) 2.5mmol BaCl 2 and 5 mmol Na 2 SiO 3 The solid was added to 30mL and 20mL deionized water respectively, and magnetically stirred (500r / min) for 5min to obtain colorless and clear solutions A and B;

[0057] (2) Under 500r / min magnetic stirring, add solution B dropwise to solution A at a rate of 10 drops / min, and continue stirring at 35°C for 10 minutes to obtain white suspension C;

[0058] (3) The suspension C was transferred to a polytetrafluoroethylene liner and sealed, and the temperature was raised to 150°C at a heating rate of 5°C / min in a static state, and after a constant temperature reaction for 12.0 hours, it was naturally cooled to room temperature to obtain a hydrothermal product;

[0059] (4) The hydrothermal product was washed 3 times with deionized water and 2 times with absolute ethanol, filtered with a Buchner funnel, and dried at 100°C fo...

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
particle diameteraaaaaaaaaa
particle diameteraaaaaaaaaa
Login to view more

Abstract

The invention provides barium silicate microspheres as well as a preparation method and an application thereof. The preparation method of the barium silicate microspheres comprises the following step: carrying out hydrothermal reaction on soluble barium salt and soluble silicate in a closed reactor to obtain the barium silicate microspheres. The invention also provides an application of the barium silicate microspheres in sewage treatment or luminescent materials. According to the preparation method of the barium silicate microspheres provided by the invention, soluble barium salt and soluble silicate are respectively used as a barium source and a silicon source, and a hydrothermal reaction is carried out under a static condition or a dynamic condition, so that the barium silicate (Ba5Si8O21) microspheres which are pure in composition, high in crystallinity, of a hierarchical pore structure and uniform in morphology are obtained; by adjusting the reaction conditions, barium silicate microspheres whose secondary units are nanoparticles, nanorods or nanosheets can be obtained. The preparation method has the advantages of cheap and easily available raw materials, mild conditions, low energy consumption, simple operation process, strong controllability and the like, and is suitable for large-scale industrial popularization.

Description

technical field [0001] The invention relates to the field of inorganic chemical materials, in particular to barium silicate microspheres and a preparation method and application thereof. Background technique [0002] With the advancement of global industrialization and the growth of population, the problem of water pollution has become one of the urgent problems to be solved by all mankind. Food, textile, leather, plastic, synthetic rubber and other industries produce a large amount of industrial wastewater every day, and the treatment of wastewater containing carcinogenic organic dyes has attracted more attention from researchers. Using non-polluting, fast and efficient porous materials as adsorbents is one of the effective methods to deal with water pollution. [0003] In recent years, three-dimensional porous materials have been widely used in catalysis, adsorption and other fields due to their advantages such as rich pore structure, high specific surface area, and large...

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 Applications(China)
IPC IPC(8): C01B33/24B01J20/10C02F1/28C02F101/30
CPCC01B33/24B01J20/10C02F1/281B01J2220/4806C02F2101/308C01P2002/72C01P2004/03C01P2004/04C01P2006/80C01P2004/61C01P2004/62
Inventor 朱万诚孙盼盼许林姜学珍
Owner QUFU NORMAL UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap