Graphene oxide membrane with tent-like structures, and preparation method and application thereof
A technology of graphene membrane and graphene membrane, which is applied in the field of ultra-thin graphene oxide and its preparation, can solve the problem of weakening selectivity, difficult adjustment of sieving channels at the molecular level, precise control of the distance between graphene membrane layers, etc. problem, to achieve the effect of increasing water flux, realizing water flux, and maximizing
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Example Embodiment
[0063] Example 1.
[0064] The specific process of preparing the ultra-thin graphene oxide film using the improved filtration assembly method of the present invention is as follows:
[0065] (1) Place the buffer layer (mixed cellulose ester film) on the peeling funnel and moisten it with water to fully adhere the two.
[0066] (2) Place the supporting film (polycarbonate film) on the buffer layer and wet it with water to make the two fully adhered.
[0067] (3) Configure the graphene oxide dispersion liquid at a concentration of 1.5 mg / L, and sonicate it for 10 minutes to make it fully dispersed.
[0068] (4) Take 10 ml of the configured graphene oxide dispersion, filter and assemble it under a vacuum pressure of 0.9 bar to obtain a membrane structure.
[0069] (5) The obtained membrane structure was dried at 60°C.
Example Embodiment
[0085] Example 2-5
[0086] In order to allow researchers in the field to better understand the construction of tent-like nanostructures in the ultra-thin graphene oxide film, we will further illustrate the present invention through specific embodiments and drawings below. The specific steps for ultra-thin graphene oxide film with tent-like structure are as follows:
[0087] (1) Place the buffer layer (mixed cellulose ester film) on the peeling funnel and moisten it with water to fully adhere the two.
[0088] (2) Place the supporting film (polycarbonate film) on the buffer layer and wet it with water to make the two fully adhered.
[0089] (3) Configure the graphene oxide dispersion, and add the silica (30nm) dispersion to the graphene oxide dispersion, where the concentration of graphene oxide is controlled at 1.5 mg / L, and the amount of silica added is equal to The mass ratios of graphene oxide are 0.01:1, 0.1:1, 1:1 and 10:1, respectively, and are recorded as Example 2, Example 3...
Example Embodiment
[0107] Example 6
[0108] In order to confirm the possibility of other nanoparticles to construct a tent-like structure, we later selected nano silver particles with an average diameter of 1 μm and an average size of 10 nm for experiments. The preparation process of the material is the same as in Example 3. Such as Figure 22 As shown, Example 6 has a tent-like structure similar to Example 3, except that the size of the constructed tent-like structure is different due to the difference in the size of the nanoparticles. Since the sieving performance and part of the surface properties of the membrane are determined by its microstructure, the sieving performance and surface properties of the membrane can also be adjusted by adjusting the ratio of nano silver intercalation. Example 6 illustrates that, according to the method of the present invention, nanoparticles of different sizes and different materials can also realize the construction of a nano-tent-like structure between the u...
PUM
Property | Measurement | Unit |
---|---|---|
Thickness | aaaaa | aaaaa |
Porosity | aaaaa | aaaaa |
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap