Preparation method of polypyrrole core-shell mesoporous silica microsphere adsorbing material
A silica and microsphere adsorption technology, applied in chemical instruments and methods, adsorbed water/sewage treatment, other chemical processes, etc., can solve problems such as poor adsorption effect of adsorbents, and achieve easy industrial production and high adsorption rate. , excellent adsorption performance
Pending Publication Date: 2020-07-03
GUILIN UNIVERSITY OF TECHNOLOGY
View PDF3 Cites 4 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0005] The purpose of the present invention is to provide a preparation method of polypyrrole core-shell mesoporous silica microsphere adsorption material, aiming to solve the problem that the existing adsorbent has poor adsorption effect when the concentration of Cr(VI) is low
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0020] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0021] Example steps such as figure 1 as shown,
[0022] S101. Mix 162.8mL of absolute ethanol, 30.0mL of deionized water and 3.14mL of concentrated ammonia water, stir at 30°C for 30min to obtain the first mixed solution, and then add 15.0mL of tetraethyl orthosilicate into the first mixed solution, and continuously stirred for 2.0 h to obtain monodisperse silica microspheres.
[0023] The deionized water is used to hydrolyze the tetraethyl orthosilicate to form silicon dioxide, the absolute ethanol is used to control the size...
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
| Property | Measurement | Unit |
|---|---|---|
| pore size | aaaaa | aaaaa |
| specific surface area | aaaaa | aaaaa |
Login to View More
Abstract
The invention discloses a preparation method of a polypyrrole core-shell mesoporous silica microsphere adsorbing material. The preparation method comprises the following steps: using a mono-disperse silica microsphere as a template and a surfactant as a pore-forming agent, preparing a core-shell mesoporous silica microsphere taken as an inorganic carrier of an adsorbent; and polymerizing pyrrole monomers inside, outside and on the surface of a mesoporous channel through in-situ polymerization so as to obtain the polypyrrole core-shell mesoporous silica microsphere adsorbing material with a large specific surface area, a high adsorption capacity and a high adsorption rate. The material is mainly applied to efficient removal of Cr (VI) in wastewater. In the test process, the removal rate ofCr (VI) reaches 99.19%, and the adsorbent has a good application prospect in industrial wastewater treatment.
Description
technical field [0001] The invention relates to the field of heavy metal adsorption, in particular to a method for preparing a polypyrrole core-shell mesoporous silica microsphere adsorption material. Background technique [0002] Chromium (Cr) is one of the most abundant elements in nature. Chromium mainly exists in the aquatic environment in two states: chromium (III) and chromium (VI). In general, chromium(VI) is more toxic than chromium(III), and Cr(VI) accumulates in the food chain and causes serious health problems, causing skin irritation and even genotoxicity and carcinogenicity. [0003] In recent years, various methods for removing Cr(VI) from wastewater have been extensively studied. At present, the main methods include chemical precipitation, ion exchange, adsorption, membrane separation, coagulation and electrochemical methods. Among these methods, the adsorption method has the advantages of simplicity, wide application, and low cost, so it is widely used. ...
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
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/30C02F1/28C02F101/22
CPCB01J20/262B01J20/103C02F1/285C02F1/281B01J2220/4812B01J2220/4806B01J2220/46C02F2101/22
Inventor 莫凌云朱杰刘远立覃礼堂朱宗强代俊峰高朋
Owner GUILIN UNIVERSITY OF TECHNOLOGY