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Petroleum adsorption degradation material and preparation method thereof

A technology for adsorption and degradation of oil, applied in chemical instruments and methods, adsorption water/sewage treatment, water/sludge/sewage treatment, etc., can solve the problems of inability to degrade oil, heavy weight, oil absorption limitation, etc., and increase the number of pores. High richness, toughness and strength, the effect of improving oil absorption capacity

Active Publication Date: 2018-12-28
ZHEJIANG OCEAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, the porosity of the high oil-absorbing resin has a great limitation on its oil-absorbing capacity, and the oil-absorbing rate of the high-oil-absorbing resin is not fast enough.
In addition, high oil-absorbing resin has a high density and a large weight per unit volume, which is not convenient for transportation and collection
The most important thing is that the super oil-absorbing resin can only absorb the oil through physical action, and cannot degrade the oil. It needs to be recycled before the oil is processed, which is not only inconvenient, but also increases the cost.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A kind of preparation method of petroleum adsorption degradation material, its preparation method is as follows:

[0026] (1) select carbon nanotubes with a particle diameter of 800-900nm, add it to the concentrated nitric acid with a concentration of 65wt%, use 75ml concentrated nitric acid for every 1g of carbon nanotubes, process 6h under the condition of 120°C, cool, filter, use Washing with distilled water until the filtrate is neutral, drying and grinding to obtain carbon nanotubes modified by acid oxidation.

[0027] Solution A was prepared by dissolving kapok fibers with 7wt% NaOH / 9wt% urea / 9wt% thiourea aqueous solution at a low temperature of -12°C. Dissolve sodium borohydride whose mass is 0.15 times that of kapok fiber in methanol solution, stir solution A, add the methanol solution of sodium borohydride to solution A in 3 times, each interval is 5min, stir at room temperature for 1.5h, and add to solution A Add glacial acetic acid whose molar mass is twice...

Embodiment 2

[0032] A kind of preparation method of petroleum adsorption degradation material, its preparation method is as follows:

[0033] (1) Select carbon nanotubes with a particle size of 800 to 900nm, add it to the concentrated nitric acid of 60wt%, use 50ml of concentrated nitric acid per 1g of carbon nanotubes, process 4h at 140°C, cool, filter, and Washing with distilled water until the filtrate is neutral, drying and grinding to obtain carbon nanotubes modified by acid oxidation.

[0034] Solution A was prepared by dissolving kapok fiber with 8wt% NaOH / 6wt% urea / 12wt% thiourea aqueous solution at a low temperature of -15°C. Dissolve sodium borohydride whose mass is 0.1 times that of kapok fiber in methanol solution, stir solution A, add the methanol solution of sodium borohydride into solution A in 3 times, each interval is 5min, stir at room temperature for 2h, and pour into the reacted Add glacial acetic acid whose molar amount is twice that of NaOH to the solution, filter, w...

Embodiment 3

[0039] A kind of preparation method of petroleum adsorption degradation material, its preparation method is as follows:

[0040] (1) Selecting carbon nanotubes with a particle size of 800-900nm for use, adding it to the concentrated nitric acid with a concentration of 63wt%, using 85ml of concentrated nitric acid for every 1g of carbon nanotubes, processing 6h at 100°C, cooling, filtering, using Washing with distilled water until the filtrate is neutral, drying and grinding to obtain carbon nanotubes modified by acid oxidation.

[0041] Solution A was prepared by dissolving kapok fibers with 7wt% NaOH / 10wt% urea / 7wt% thiourea aqueous solution at a low temperature of -12°C. Dissolve sodium borohydride whose mass is 0.2 times that of kapok fiber in methanol solution, stir solution A, add the methanol solution of sodium borohydride to solution A in 3 times, each interval is 5min, stir at room temperature for 1.5h, and add to solution A Add glacial acetic acid whose molar mass is...

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Abstract

The invention relates to the field of seawater treatment, and discloses a petroleum adsorption degradation material and a preparation method thereof, wherein the material is a silica-carbon nanotube-kapok fiber derivative composite material loaded with titanium dioxide nanowires. The carbon nanotubes are acid oxidation-modified carbon nanotubes, the kapok fiber derivatives are reduced-treated kapok fibers, and the surfaces of the modified carbon nanotubes and the kapok fibers contain plenty of hydroxyl groups. In the process of forming a silica gel by silica, the hydroxyl groups on the surfaces of the modified carbon nanotubes and kapok cellulose also participate in a network structure of the silica gel, so that oxo-bridged oxygen bonds are used for connection between the silica and the carbon nanotubes or between the silica and the kapok fibers, the rigid carbon nanotubes and the kapok fiber bonds are accessed to a network structure of the silica gel, the oil absorption capacity, strength and aging resistance of aerogel can be greatly improved, and the service life of the aerogel is prolonged.

Description

technical field [0001] The invention relates to the field of seawater treatment, in particular to a petroleum adsorption degradation material and a preparation method. Background technique [0002] With the development of industry, the pollution of industry to the environment is becoming more and more serious. In recent years, people's awareness of environmental protection has gradually strengthened, and the government has paid more and more attention to environmental governance. Among the many sources of pollution, water pollution is particularly prominent. Among them, the leakage and discharge of industrial oil have caused huge pollution to oceans and rivers, posing a serious threat to the environment. At present, oil-absorbing materials such as super oil-absorbing resins are generally used to adsorb oil in water bodies. Super oil-absorbing resin is a polymer formed by cross-linking lipophilic monomers, with a three-dimensional cross-linking network structure between mo...

Claims

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Application Information

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IPC IPC(8): B01J20/24B01J31/38C02F1/28C02F1/30B01J20/30C02F103/08
CPCB01J20/06B01J20/103B01J20/20B01J20/24C02F1/281C02F1/286C02F1/30B01J31/38C02F2103/08B01J35/39
Inventor 刘梅陈庆国李晶晶鲍博戚柳倩
Owner ZHEJIANG OCEAN UNIV
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