Preparation method of super-hydrophobic sponge adsorbing material

A super-hydrophobic sponge and adsorption material technology, which is applied in the field of environmental functional material preparation, can solve the problems of poor stability, small processing capacity, and low recycling rate, and achieve the effects of stable performance, large adsorption capacity, and simple and easy operation

Inactive Publication Date: 2018-08-31
JIANGSU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still many problems in the application of superhydrophobic adsorption materials, such as poor stability, low recycling rate, and small processing capacity. These problems need to be solved urgently.

Method used

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  • Preparation method of super-hydrophobic sponge adsorbing material
  • Preparation method of super-hydrophobic sponge adsorbing material
  • Preparation method of super-hydrophobic sponge adsorbing material

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] (1) Preparation of dopamine-coated sponge body: Put the sponge into ethanol for ultrasonic pretreatment for 10 minutes, put it in an oven and dry it at 60°C; Add 0.2 g of dopamine hydrochloride, then put the cleaned sponge into the above solution, shake in a water bath shaker at 25° C. for 6 hours, and shake at a speed of 100 r / min. After the shaking is completed, the sponge is taken out, washed with ethanol several times, and dried in an oven at 60°C. get polydopamine coated sponge

[0033] (2) Preparation of superhydrophobic sponge: dissolve 0.05g of cetyltrimethoxysilane, 0.25g of tetraethyl silicate, and 2mL of ammonia water in 20mL of ethanol, put the dried sponge in a water bath for 60 ℃ heating and stirring for 30min, the stirring speed is 20r / min. Then transfer to a shaker at 25°C for 24h, the shaking speed is 120r / min. After the shaking is completed, the sponge is taken out, washed with ethanol several times, and placed in an oven at 60°C to dry to obtain a ...

Embodiment 2

[0035] (1) Preparation of dopamine-coated sponge body: Put the sponge into ethanol for ultrasonic pretreatment for 10 minutes, put it in an oven and dry it at 60°C; Add 0.2 g of dopamine hydrochloride, then put the cleaned sponge into the above solution, shake in a water bath shaker at 25° C. for 6 hours, and shake at a speed of 110 r / min. After the shaking is completed, the sponge is taken out, washed with ethanol several times, and dried in an oven at 60°C. get polydopamine coated sponge

[0036] (2) Preparation of superhydrophobic sponge: dissolve 0.15g of cetyltrimethoxysilane, 0.25g of tetraethyl silicate, and 2mL of ammonia water in 30mL of ethanol, put the dried sponge in a water bath for 60 ℃ for heating and stirring for 30 min at a stirring speed of 30 r / min, and then transferred to a shaker at 25 ℃ for 12 h at a shaking speed of 130 r / min. After the shaking is completed, the sponge is taken out, washed with ethanol several times, and dried in an oven at 60°C to obt...

Embodiment 3

[0038] (1) Preparation of dopamine-coated sponge body: Put the sponge into ethanol for ultrasonic pretreatment for 10 minutes, put it in an oven and dry it at 60°C; Add 0.2 g of dopamine hydrochloride, then put the cleaned sponge into the above solution, and vibrate (120 r / min) in a water bath shaker at 25° C. for 6 h. After the shaking is completed, the sponge is taken out, washed with ethanol several times, and dried in an oven at 60°C. get polydopamine coated sponge

[0039] (2) Preparation of superhydrophobic sponge: dissolve 0.25g of cetyltrimethoxysilane, 0.25g of tetraethyl silicate, and 2mL of ammonia water in 40mL of ethanol, put the dried sponge in a water bath for 60 ℃ heating and stirring for 30min at a stirring speed of 40r / min, and then transferred to a shaker at 5℃ for 6h at a shaking speed of 140r / min. After the shaking is completed, the sponge is taken out, washed with ethanol several times, and dried in an oven at 60°C to obtain a superhydrophobic and lipop...

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Abstract

The invention belongs to the technical field of preparation of environmental functional materials, and specifically relates to a preparation method of a super-hydrophobic sponge adsorbing material. The method specifically comprises the following steps: preparing a dopamine coated sponge base body; dissolving hexadecyltrimethoxysilane, tetraethyl orthosilicate and ammonia water into ethyl alcohol to obtain a mixed solution; adding the opamine coated sponge base body; transferring into a water bath pot; stirring under constant temperature; and oscillating through water bath; washing; and dryingto obtain the super-hydrophobic sponge adsorbing material. The prepared super-hydrophobic sponge adsorbing material is high acid, alkali and salt resistant super-hydrophobic oleophylic material whichis simple, environmentally friendly, low in cost, and small in investment and can realize mass production; and the material is applicable to oil and water separation in a complex industrial environment, and is stable in structure, and high in adsorbing capacity.

Description

technical field [0001] The invention belongs to the technical field of preparation of environmental functional materials, and in particular relates to a preparation method of a superhydrophobic sponge adsorption material. Background technique [0002] With the rapid development of social economy and the increase of oil processing and transportation, oil product leakage incidents occur frequently. A large amount of oily sewage entering the water environment will not only seriously pollute water resources, but also cause huge economic losses. Therefore, it is of great significance to carry out research on oil-water separation materials. At present, the methods commonly used in the treatment of oily wastewater mainly include gravity method, centrifugation method, air flotation method, adsorption method, chemical method, biological method and membrane separation method. Among them, membrane separation has attracted extensive attention for its advantages of low energy consumpti...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01J20/26B01J20/28B01J20/30
CPCB01J20/265B01J20/28045B01J20/28054
Inventor 陈阳阳谢阿田戴江栋崔久云闫永胜李春香
Owner JIANGSU UNIV
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