Preparation method and application of carbon-based Janus membrane

A carbon-based, solution-based technology, applied in chemical instruments and methods, membrane technology, semi-permeable membrane separation, etc., can solve problems such as high energy consumption, expensive equipment, and inconvenient maintenance, and achieve good reusability, easy portability, and simple methods quick effect

Active Publication Date: 2019-09-17
NORTHWEST UNIV(CN)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] The purpose of the present invention is to solve the problems of high energy consumption, expensive equipment and inconvenient maintenance in traditional water treatment methods, and to provide a preparation method and application of a carbon-based Janus membrane

Method used

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  • Preparation method and application of carbon-based Janus membrane
  • Preparation method and application of carbon-based Janus membrane
  • Preparation method and application of carbon-based Janus membrane

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Experimental program
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specific Embodiment approach 1

[0036] Specific embodiment one: a kind of preparation method of carbon-based Janus membrane is finished according to the following steps:

[0037] 1. Preparation of MgCO 3 fiber:

[0038] NaCO with a concentration of 0.5mol / L~1.5mol / L 3 Add the solution dropwise to MgCl with a concentration of 1mol / L~2mol / L 2 ·6H 2 O solution, dried after stirring to obtain MgCO 3 fiber;

[0039] The NaCO concentration described in step 1 is 0.5mol / L~1.5mol / L 3 Solution and MgCl with concentration of 1mol / L~2mol / L 2 ·6H 2 The volume ratio of O solution is (20~3000):(20~3000);

[0040] 2. Preparation of graphene fibers:

[0041] ①. First, evenly spread MgCO in the quartz boat 3 fiber, which will then be coated with MgCO 3 The fiber quartz boat is transferred to the horizontal CVD furnace, and then argon gas is introduced into the horizontal CVD furnace, and the temperature of the horizontal CVD furnace is raised from room temperature at a rate of 4°C / min to 15°C / min under the protect...

specific Embodiment approach 2

[0056] Embodiment 2: This embodiment differs from Embodiment 1 in that: the stirring speed in step 1 is 50r / min-400r / min, and the stirring time is 0.5h-1.5h. Other steps are the same as in the first embodiment.

specific Embodiment approach 3

[0057] Embodiment 3: This embodiment differs from Embodiment 1 or Embodiment 2 in that: the drying temperature in step 1 is 35°C-65°C, and the drying time is 0.5h-3.5h. Other steps are the same as those in Embodiment 1 or 2.

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Abstract

The invention discloses a preparation method and application of a carbon-based Janus membrane and relates to a preparation method and application of a Janus membrane. The invention aims to solve the problems that a conventional water treatment method is large in energy consumption and equipment is expensive in equipment and inconvenient to maintain. The preparation method comprises the following steps: 1, preparing an MgCO3 fiber; II, preparing a graphene fiber; III, preparing a Janus solution; VI, adding the graphene fiber into the Janus solution, carrying out stirring, and carrying out suction filtration by using a vacuum filtration machine, so as to obtain the carbon-based Janus membrane. The method for preparing the carbon-based Janus membrane, which is disclosed by the invention, is simple and rapid, and the carbon-based Janus membrane is convenient to carry over, has the advantages of being good in recycling performance, and the like, and is mainly applied to fields of new energy and water treatment. The invention discloses the carbon-based Janus membrane.

Description

technical field [0001] The invention relates to a preparation method and application of a Janus membrane. Background technique [0002] With the continuous progress of human society, resources are becoming increasingly scarce, fresh water resources are becoming more and more scarce, and water pollution is increasing. These problems have attracted extensive attention from all over the world. Among the many methods of water treatment, the generation of water vapor by local heating of sunlight is a simple, effective and cost-effective method, so it has broad application prospects. In order to improve the shortcomings of traditional methods such as high energy consumption, expensive equipment, and inconvenient maintenance, photothermal technology that makes full use of sunlight has emerged as the times require. Contents of the invention [0003] The purpose of the present invention is to solve the problems of high energy consumption, expensive equipment and inconvenient maint...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B01D71/52B01D69/12B01D69/02B01D67/00B01D61/36D01F9/12C02F1/44C02F103/08
CPCB01D61/364B01D67/0079B01D69/02B01D69/12B01D71/021B01D71/34B01D71/52C02F1/447C02F2103/08D01F9/12
Inventor 王刚周庆欣马生华王惠白晋涛
Owner NORTHWEST UNIV(CN)
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