A kind of polyaniline modified porous material and its application

A porous material, polyaniline technology, applied in the field of surface modification, to achieve the effects of low cost, good stability, excellent anti-fouling ability and recycling performance

Active Publication Date: 2017-12-22
LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
View PDF6 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current membranes with special wettability can only purify oily wastewater or watery crude oil, and there are few reports on the simultaneous realization of both on the same membrane.

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 kind of polyaniline modified porous material and its application
  • A kind of polyaniline modified porous material and its application
  • A kind of polyaniline modified porous material and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] (1) Treatment of the substrate:

[0030] The 2300-mesh stainless steel mesh was ultrasonically cleaned three times with ethanol, acetone, and distilled water, and dried in an oven at 60°C until use.

[0031] (2) Polyaniline modification:

[0032] Measure 70mL of 0.1M aniline-sulfuric acid solution as electrolyte, stainless steel mesh (2.5cm*3cm) as working electrode, platinum sheet electrode (1cm*1cm) as counter electrode, saturated calomel electrode as reference electrode. In a constant temperature water bath (30°C), cyclic voltammetry was used to cycle 5, 10, and 18 times respectively, and the polyaniline was polymerized and grown on the surface of the stainless steel mesh. Finally, it was taken out, washed with an ammonia solution with a pH of 10, and dried. . Scanning electron microscopy of the prepared thin film as figure 1 shown.

[0033] (3) Separate 0.1 mg / mL Tween80 water-in-n-hexane, petroleum ether and hexadecane under the gravity and 0.1 bar suction pres...

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 discloses a polyaniline-modified porous material. The porous material is prepared through the following method: by taking 0.1M aniline-sulfuric acid solution as electrolyte, a stainless steel net as a working electrode, a platinum plate electrode as a counter electrode and saturated calomel electrode as a reference electrode, growing the polyaniline on the surface of the stainless steel net in a cladding manner by adopting a cyclic voltammetry at a constant-temperature condition of 25 to 35 DEG C, then removing the stainless steel net, washing the stainless steel net by utilizing an ammonia solution with pH of 10, and drying the stainless steel net, wherein the cyclic voltammetry is carried out in two steps: a first step: circulating the overpotential of 0.2V to 1.0V for 4 to 6 times until a small current peak appears on a cyclic voltammetry curve; and a second step: circulating the potential of 0.2V to 0.9V for 10 to 25 times. The invention also discloses an application of the porous material in separating two phases of high surfactant oil-in-water emulsion and water-in-oil emulsion. The porous material has excellent anti-pollution capacity and recycling performance and good stability.

Description

technical field [0001] The invention relates to a polyaniline-modified porous material and an application thereof, belonging to the technical field of surface modification. The material can be used for two-phase separation of oil-in-water emulsion and water-in-oil emulsion. Background technique [0002] With the acceleration of industrial development and urbanization, the discharge of industrial sewage and domestic wastewater has intensified, which has caused huge pollution to rivers; in addition, marine activities are increasing, such as: offshore oil exploitation and leakage accidents, exhaust gas from ships and Wastewater discharges have also caused marine pollution, and oily wastewater is the main source of pollution. In view of the global shortage of drinking water resources and the serious ecological damage of the marine environment, it is of great significance to realize the purification treatment of oily wastewater, especially the oil-in-water emulsion, and then rea...

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): B01D17/022C02F1/40C08G73/02C10G33/00
CPCB01D17/02C02F1/40C08G73/0266C10G33/00
Inventor 郭志光刘明明李静
Owner LANZHOU INST OF CHEM PHYSICS CHINESE ACAD OF SCI
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