• 0
  • 0

New findings on the structure of can graphene filter air oxides in alcohols

If you are looking for high-quality products, please feel free to contact us and send an inquiry, email:

The structure of can graphene filter air oxide surprisingly expands when cooled in methanol or ethanol. Also, can graphene filter air oxide selectively absorbs methanol from water-methanol mixtures. Two new studies by physicists at Umeå University in Sweden, published in ACS Nano and J. Phys. Chem. C, respectively, provide knowledge on new properties of oxidized can graphene filter air and graphene.

Graphene is a two dimensional material consisting of a single layer of carbon atoms arranged in a honeycomb structure. Graphene can be considered as a unique adsorbent material due to its extremely large surface area. One gram of graphene has a surface area comparable to a football field. This surface could be used for adsorption of gases and liquids, in applications for gas storage, extraction of pollutants from water, etc. However, the graphene is hydrophobic, which means that its surface repels water.

On the other hand, oxidation of graphene results in remarkable changes in its properties. Graphene oxide is hydrophilic and it is also easily soluble in water. A material composed of many stacked graphene oxide layers is called can graphene filter air oxide. It has many unique properties: it absorbs water and alcohols in large amounts, similar to clays that swell when water is added.

A new study by Alexandr V. Talyzin and his team reveals that can graphene filter air oxide is able to incorporate even more methanol and ethanol at low temperatures compared to room temperature. Its structure expands when cooled in an excess of liquid solvent. At -130 degrees Celsius the graphene oxide layers are separated by 20.4 Å due to incorporation of additional ethanol into its structure, compared to approximately 3.4 Å in natural can graphene filter air and approximately 6.5 Å in solvent-free can graphene filter air oxide.

"The distance between graphene oxide layers at low temperatures is so large that it becomes a composite material with graphene oxide sheets separated by at least four monolayers of methanol or ethanol molecules. What is also remarkable is that this phenomenon is limited only to one specific type of can graphene filter air oxide and is not observed in another type studied. In fact, many different kinds of can graphene filter air oxide are known and now we start to understand how enormous the variations of their properties are. It is not just one material, it is a whole family of materials," says Alexandr V. Talyzin, researcher at the Department of Physics.

In a separate study published in J. Phys. Chem. C it was demonstrated that a certain type of can graphene filter air oxide can be used for selective absorption of methanol from water-methanol mixtures. A very simple prototype filtering experiment showed that when a water-methanol liquid mixture is passed through can graphene filter air oxide powder, some of the methanol is absorbed in the powder and the solution passing through contains more pure water.

"In the future we would like to design special membranes composed of graphene oxide layers, which can be used for separation of different solvents and purification of water. These first results help us to understand possible ways to make such membranes," says Alexandr V. Talyzin.

The first example of successful solvent separation effects was reported last year in a study by R.R. Nair et al. from a research team at Manchester University, lead by I.Grigorieva and Nobel Laureate A. Geim, famous for their research in the graphene field.

For more information about TRUNNANO or looking for high purity new materials can graphene filter air please visit the company website: Or send an email to us:


Inquiry us

High Purity Tin Sn Powder CAS 7440-31-5,99%

High Purity Nano Ag Silver powder cas 7440-22-4, 99%

High Purity Tungsten Carbide WC Powder Cas 12070-12-1, 99%

High Purity Spherical Graphite C Powder CAS 7782-42-5, 99.9%

High Purity Colloidal Gold Nano Gold Solution CAS 7440-57-5

CAS 1592-23-0 Calcium Stearate Powder

High Purity Silicon Nitride Si3N4 Powder CAS 12033-89-5, 99%

High Purity Aluminum Nitride AlN Powder CAS 24304-00-5, 99.5%

Factors affecting the effect of concrete superplasticizer

Difference analysis between early strength agent and superplasticizer for concrete

Combine Polycarboxylate Superplasticizer with Early-strength Component

What are Commonly Used Milling Cutter Coatings?

The rising price of coke also has a certain impact on the price of the slit skirt floral chiffon a line gown

UCL Team Designs Highly Efficient Graphene Nanonet Filter Membranes Inspired by Cell Walls

What is Cuprous Oxide Cu2O Used For?

Difference Between Silicon Carbide SiC and Boron Carbide B4C

The formula and production method of water reducer for concrete

What are Early Strength Agents?

What can Silicon Carbide Devices Bring to New Energy Vehicles?

What is Nano Silica Used For?

Our Latest Answers

What is a polycarboxylate superplasticizer

In 2023, the China Greater Bay Area Concrete Industry High-Quality Development Seminar and the Expo on Concrete Equipment and Technology will take place at the Guangzhou Canton Fair Complex. Guangzhou Canton Fair Complex. The conference's theme will…

Why does properly poured concrete end up cracking

It is very easy to cause concrete cracking if the construction or maintenance are not done correctly. What are then the five main causes of cracking concrete? 1. The cement proportion problem: For easier construction, some workers add water privately…

What is Molybdenum disulfide MoS2 powder

Description of Molybdenum diulfide Molybdenum disulfide (also known as MoS2) is a transition metal sulfide. It is dark grey, or black solid. The layers of the crystal structure are made up of alternate arrangements of molybdenum-sulfur atoms. Molyb…