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

Flocculating agent and preparation method thereof

A flocculant, graphene quantum dot technology, applied in the direction of flocculation/sedimentation water/sewage treatment, etc., can solve the problems of fast release, high cost, low efficiency of water pollution control, etc., and achieve the effect of simple operation and good reproducibility

Inactive Publication Date: 2019-03-26
TCL CORPORATION
View PDF5 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 provide a flocculant and its preparation method, aiming to solve the problems of rapid release, uneven release, and inability to locate and track in real time, resulting in low efficiency of water pollution control in the existing polymers used in water pollution treatment as flocculants. , the problem of increased cost

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

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0021] Correspondingly, the embodiment of the present invention also provides a method for preparing a flocculant, comprising the following steps:

[0022] S01 provides graphene quantum dots and polymers, and the graphene quantum dots are mixed with the polymer to obtain a mixed solution, wherein the graphene quantum dots are graphene oxide quantum dots, and the graphene oxide quantum dots are the surface contains a first reactive functional group and the polymer contains a second reactive functional group;

[0023] S02 makes the first active functional group and the second active functional group undergo a condensation reaction, and the surface of the graphene quantum dot and the polymer are formed by condensation of the first active functional group and the second active functional group group connection to prepare the flocculant.

[0024] The preparation method of the flocculant provided by the embodiment of the present invention has simple operation and good reproducibili...

Embodiment 1

[0046] A preparation method of flocculant, comprising the following steps:

[0047] Put 0.1g of graphene nanosheets and 20ml of mixed concentrated acid into a beaker for room temperature oxidation, wherein the combination of mixed concentrated acids is selected from concentrated sulfuric acid and concentrated nitric acid, and the mass volume ratio of graphene nanosheets to mixed concentrated acid is 0.005-0.05g / ml; the mixing volume ratio of concentrated sulfuric acid and other acids is 1:4; the oxidation time is 10 hours. After ultrasonic treatment, put it into a muffle furnace equipped with a waste gas recovery device and calcinate at 400°C for 20 minutes to obtain graphene oxide quantum dots containing first active functional groups such as carboxyl groups;

[0048] Disperse graphene oxide in distilled water, filter through a 0.22 μm microporous membrane to obtain a brown filtrate, and further dialyze the brown filtrate with a dialysis bag with a molecular weight cut-off o...

Embodiment 2

[0053] A preparation method of flocculant, comprising the following steps:

[0054] Add 0.35g of graphene nanosheets and 25ml of mixed concentrated acid into a beaker for room temperature oxidation, wherein the combination of mixed concentrated acid is selected from concentrated sulfuric acid and concentrated hydrochloric acid, and the mass volume ratio of graphene nanosheets to mixed acid is 0.005-0.05g / ml; the mixing volume ratio of concentrated sulfuric acid and other acids is 1:3; the oxidation time is 8 hours. After ultrasonic treatment, put it into a muffle furnace equipped with a waste gas recovery device and calcinate at 450°C for 30 minutes to obtain graphene oxide quantum dots containing first active functional groups such as carboxyl groups;

[0055] Disperse graphene oxide in distilled water, filter through a 0.22 μm microporous membrane to obtain a brown filtrate, and further dialyze the brown filtrate with a dialysis bag with a molecular weight cut-off of 5,500 ...

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

No PUM Login to View More

Abstract

The invention provides a flocculating agent. The flocculating agent contains a graphene quantum dot and a polymer linked with the graphene quantum dot, wherein the graphene quantum dot is a graphene oxide quantum dot and contains a first active functional group, the polymer contains a second active functional group, and the graphene quantum dot and the polymer are linked through the condensation of the first active functional group and the second active functional group.

Description

technical field [0001] The invention belongs to the field of water environment treatment, and in particular relates to a flocculant and a preparation method thereof. Background technique [0002] In recent years, graphene quantum dot materials have become an increasingly important member of the "quantum dot family" due to their excellent properties. Graphene quantum dot materials are mainly composed of carbon elements, and carbon elements are "friendly elements" to the environment and the human body. Therefore, good environmental and biological safety further promote the research and promotion of graphene quantum dot materials. Especially when the size of graphene quantum dots is below 10nm, graphene quantum dots exhibit large specific surface area, good mechanical plasticity, excellent thermochemical stability, etc. It has broad application prospects in governance, photovoltaics, bioimaging, sensors and other fields. [0003] With the rapid development of industrial socie...

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
IPC IPC(8): C02F1/56
CPCC02F1/56
Inventor 邓承雨杨一行钱磊谢相伟
Owner TCL CORPORATION
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