A filter device using a filter membrane of two-dimensional micro-nano material

A filter device and filter membrane technology, applied in the micro-nano field, can solve the problems of energy dissipation, reduction of graphene oxide membrane flux, etc.

Inactive Publication Date: 2019-01-11
TSINGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, when filtering along the thickness direction of graphene oxide microsheets, water molecules need to "intersperse and detour", see figure 2 a, leading to reduced flux and energy dissipation in graphene oxide membranes

Method used

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  • A filter device using a filter membrane of two-dimensional micro-nano material
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  • A filter device using a filter membrane of two-dimensional micro-nano material

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Embodiment Construction

[0024] The filter device using the filter membrane of two-dimensional micro-nano material provided by the present invention will be described below in conjunction with the above-mentioned figures and different embodiments.

[0025] see figure 1 The filter device 10 for preparing membrane materials of micro-nano materials provided by the embodiment of the present invention includes: a first container 12 , a second container 14 and a filter membrane 16 .

[0026] The first container 12 is used to store liquid or gas to be separated. The second container 14 is connected to the first container 12 . The second container 14 is used to collect the separated liquid or gas. The shape, size and structure of the first container 12 and the second container 14 are not limited, and can be designed according to needs. The materials of the first container 12 and the second container 14 can be materials with certain hardness and strength such as metal, ceramics, glass, quartz or polymer. ...

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Abstract

The invention relates to a filtering device using a filtering membrane prepared from a two-dimensional micro-nano material. The filtering device comprises a first container used for accommodating liquids or gases to be separated, a second container which is connected with the first container and used for collecting separated liquids or gases, and a filtering membrane arranged at the junction of the first container and the second container for making the liquids or gases in the first container capable of flowing to the second container in the direction parallel to the thickness of the filtering membrane, wherein the filtering membrane comprises multiple two-dimensional micro-nano material microchips which are arranged by being stacked layer upon layer, a plurality of micropores are defined between two adjacent two-dimensional micro-nano material microchips, and the thickness directions of the two-dimensional micro-nano material microchips are perpendicular to the thickness direction of the filtering membrane. Many short channels are formed among the two-dimensional micro-nano material microchips of the membrane with the structure, and have smooth atomic scales, so that low-friction high-speed transportation can be realized. The filtering device using the filtering membrane prepared from the two-dimensional micro-nano material provided by the invention has the advantages of high flux and low energy consumption.

Description

technical field [0001] The invention belongs to the field of micro-nano technology, and in particular relates to a filter device using a filter membrane of a two-dimensional micro-nano material. Background technique [0002] Traditional filter membranes can be divided into microfiltration membranes (MF, pore size 0.02 microns to 10 microns), ultrafiltration membranes (UF, pore sizes 0.001 microns to 0.02 microns) and reverse membranes according to their pore sizes (or molecular weight cut-offs). Permeable membrane (RO, pore size 0.0001 micron ~ 0.001 micron), etc. At present, with the discovery of two-dimensional micro-nano material microchips such as graphene and graphene oxide, the use of two-dimensional micro-nano material microchips to prepare filter membranes has become a research hotspot. [0003] The 2010 Nobel Prize winner Andre Heim's research group reported in the 2012 Science journal that a layer-by-layer graphene oxide film with a submicron thickness was fabrica...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B01D61/00
CPCB01D61/00
Inventor 徐志平高恩来焦淑平
Owner TSINGHUA UNIV
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