Preparation method of magnetic superhydrophobic ethyl cellulose sponge for oil-water separation

A technology of cellulose sponge and ethyl cellulose, applied in water/sewage treatment, chemical instruments and methods, water/sludge/sewage treatment, etc., can solve problems such as secondary pollution, refractory degradation, and environmental pollution, and achieve Effect of high oil-water separation efficiency, high oil-water separation ability, and strong oil-water separation ability

Active Publication Date: 2017-06-30
TONGJI UNIV
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, the above-mentioned hydrophobic sponges will face many problems in practical applications, such as complicated processing and preparation process, expensive experimental reagents and equipment, poor reusability of materials, secondary pollution in the preparation process, etc.
In particular, most of these modified sponges use materials

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
  • Preparation method of magnetic superhydrophobic ethyl cellulose sponge for oil-water separation
  • Preparation method of magnetic superhydrophobic ethyl cellulose sponge for oil-water separation
  • Preparation method of magnetic superhydrophobic ethyl cellulose sponge for oil-water separation

Examples

Experimental program
Comparison scheme
Effect test

Embodiment １

[0028] A preparation method for a magnetic superhydrophobic ethyl cellulose sponge for oil-water separation, comprising the following process steps:

[0029] (1) Preparation of silane hydrophobized modified ethyl cellulose:

[0030] Add 1.3 mL of hexadecyltrimethoxysilane (HDTMS) and 4 mL of deionized water to 30 mL of absolute ethanol, stir magnetically for 30 min, then add 1 mL of glacial acetic acid (HAc), and continue stirring for 30 min. Put the reaction device into a 60°C oil bath and connect a spherical condenser, and perform hydrolysis for 60 minutes to obtain HDTMS hydrolyzate. Add 1.2g of ethyl cellulose to the prepared HDTMS hydrolyzate, stir and react at 60°C for 4 hours, take out the flask, wash repeatedly with deionized water to remove solvent and residual glacial acetic acid, and dry to obtain silanized modified Ethyl cellulose.

[0031] (2) Preparation of magnetic Fe3O4 nanoparticles coated with oleic acid:

[0032] Under the protection of high-purity argon,...

Embodiment 2

[0040] A preparation method for a magnetic superhydrophobic ethyl cellulose sponge for oil-water separation, comprising the following process steps:

[0041] (1) Preparation of silane hydrophobized modified ethyl cellulose:

[0042] Add 2.0 mL of hexadecyltrimethoxysilane (HDTMS) and 6 mL of deionized water to 30 mL of absolute ethanol, stir magnetically for 30 min, then add 1 mL of glacial acetic acid (HAc), and continue stirring for 30 min. Put the reaction device into an oil bath at 65°C and connect it with a spherical condenser, and perform a hydrolysis reaction for 60 minutes to obtain HDTMS hydrolyzate. Add 1.8g of ethyl cellulose to the prepared HDTMS hydrolyzate, stir and react at 60°C for 6 hours, take out the flask, wash repeatedly with deionized water to remove solvent and residual glacial acetic acid, and dry to obtain silanized modified Ethyl cellulose.

[0043] (2) Preparation of magnetic Fe3O4 nanoparticles coated with oleic acid:

[0044] Under the protectio...

Embodiment 3

[0052] A preparation method for a magnetic superhydrophobic ethyl cellulose sponge for oil-water separation, comprising the following process steps:

[0053] (1) Preparation of silane hydrophobized modified ethyl cellulose:

[0054] Add 2.2 mL of hexadecyltrimethoxysilane (HDTMS) and 4.5 mL of deionized water to 40 mL of absolute ethanol, stir magnetically for 30 min, then add 2.5 mL of glacial acetic acid (HAc), and continue stirring for 30 min. Put the reaction device into an oil bath at 65°C and connect it with a spherical condenser, and perform a hydrolysis reaction for 60 minutes to obtain HDTMS hydrolyzate. Add 1.2g of ethyl cellulose to the prepared HDTMS hydrolyzate, stir and react at 60°C for 4 hours, take out the flask, wash repeatedly with deionized water to remove solvent and residual glacial acetic acid, and dry to obtain silanized modified Ethyl cellulose.

[0055] (2) Preparation of magnetic Fe3O4 nanoparticles coated with oleic acid:

[0056] Under the prote...

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
Densityaaaaaaaaaa
Separation efficiencyaaaaaaaaaa
Login to view more

Abstract

The present invention relates to a preparation method of a magnetic superhydrophobic ethylcellulose sponge for oil-water separation. The preparation method specifically comprises: preparing silane hydrophobically modified ethyl cellulose, introducing the silane hydrophobically modified ethyl cellulose adopted as a matrix into oleic acid-coated triiron tetraoxide magnetic nanoparticles prepared through a co-precipitation method, and obtaining a magnetic superhydrophobic three-dimensional porous material capable of efficiently performing oil-water separation through a pore forming agent occupation method. According to the present invention, the ethyl cellulose is firstly used as the oil-water separation material, such that the preparation method has advantages of economy, high efficiency, simple preparation process, wide raw material source, green environmental protection, and durability; the prepared superhydrophobic porous sponge has advantages of excellent oil absorption, excellent stability, excellent recyclability, excellent biodegradability, and the like; and the preparation method further has characteristics of simpleness, easy performing, industrial production of the raw materials, and good promotion application value.

Description

technical field [0001] The invention belongs to the field of polymer materials and functional materials, and in particular relates to a preparation method of a magnetic superhydrophobic ethyl cellulose sponge used for oil-water separation. Background technique [0002] In recent years, crude oil extraction positions have begun to shift from the mainland to the sea. The exploitation of offshore oil has become one of the important ways to obtain energy, but accidents of various types of oil leakage are becoming more and more common. While causing great harm to the local marine ecological environment, it also makes the treatment of oil spill pollution a focus of attention from all walks of life. How to effectively realize oil-water separation is of great significance to the protection of marine ecological environment. [0003] The physical absorption method of hydrophobic three-dimensional porous materials is a very effective oil-water separation technology. Three-dimensional...

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): C02F1/68C02F103/10C02F101/30
CPCC02F1/681C02F2101/30C02F2103/10
Inventor 袁伟忠陆叶强
Owner TONGJI 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