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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
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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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

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  • 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
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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...

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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

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Application Information

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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
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