Related Experiment Video
Updated: Feb 10, 2026
10:23
Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies
Published on: November 5, 2015
14.5K
Carbon Dioxide Adsorption Using Porous 3D Self-Assembled Graphene.
Bharat Nayak1, Maulik Gauswami1, Lavanya Yalagandula2
1Department of Chemical Engineering, Birla Institute of Technology and Science Pilani, Pilani 333031, Rajasthan, India.
ACS Omega
|February 9, 2026
Summary
Highly porous 3D self-assembled graphene (SAG) was synthesized for carbon capture. This material shows significant carbon dioxide (CO2) uptake and high selectivity for CO2/H2 and CO2/CH4 separations.
Area of Science:
- Materials Science
- Chemical Engineering
- Environmental Science
Background:
- Rising carbon emissions necessitate efficient and cost-effective capture technologies.
- Graphene-based materials offer potential for gas adsorption due to their unique properties.
Purpose of the Study:
- To synthesize and characterize 3D self-assembled graphene (SAG) for gas adsorption.
- To evaluate SAG's performance for carbon dioxide (CO2) capture and separation.
Main Methods:
- One-step hydrothermal synthesis for SAG.
- Characterization using HRTEM, FESEM, PXRD, BET, Raman, FTIR, and HRXRD.
- Measurement of CO2, H2, and CH4 adsorption isotherms from 0.1 to 30 bar.
Main Results:
- 3D SAG exhibited a CO2 uptake of approximately 2.18 mmol/g.
- High ideal gas selectivity was observed: 59.38 for CO2/H2 and 10.51 for CO2/CH4 at 0.1 bar.
- The material demonstrated excellent adsorption properties for CO2.
Conclusions:
- 3D SAG is a promising material for CO2 capture and separation.
- The synthesized material shows potential for various gas adsorption applications.
- The cost-effective synthesis route makes SAG an attractive option for industrial applications.
Related Concept Videos
01:28Carbon-dioxide Fixation
735
Carbon dioxide fixation in prokaryotes enables the assimilation of inorganic carbon into organic molecules, supporting biosynthetic pathways, sustaining ecosystems, and contributing to the global carbon cycle. It also has industrial applications in carbon capture and bioproduct synthesis. Autotrophic organisms rely on this process to utilize CO₂ as a carbon source in diverse environments.The Calvin CycleThe Calvin cycle is the most widespread carbon fixation mechanism, primarily used by...
735
01:19Carbon Dioxide Transport in the Blood
5.3K
Carbon dioxide (CO2) transport in the blood is critical to human physiology. On average, our body cells produce around 200 mL of CO2 per minute, precisely the quantity expelled by the lungs. This process involves the transportation of CO2 from the tissue cells to the lungs in three primary forms.
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
Forms of CO2 Transport
1. Dissolved in plasma: A small percentage (7-10%) of CO2 is transported and dissolved directly in the plasma.
2. Carbaminohemoglobin: Just over 20% of CO2 is chemically bound to...
5.3K
01:14The Carbon Cycle
44.0K
Carbon is the basis of all organic matter on Earth, and is recycled through the ecosystem in two primary processes: one in which carbon is exchanged among living organisms, and one in which carbon is cycled over long periods of time through fossilized organic remains, weathering of rocks, and volcanic activity. Human activities, including increased agricultural practices and the burning of fossil fuels, has greatly affected the balance of the natural carbon cycle.
44.0K
01:09Analyte Adsorption and Distribution
2.8K
In certain chromatographic separations, solutes transfer between the mobile phase and the stationary phase via sorption, which typically refers to the process of adsorption. For many chromatographic systems, the sorption process often depends on the polarity of the compounds—an expression of the overall dipole moment within the molecule. During the separation process, there is competition between the solute and solvent for adsorption to the stationary phase. Highly polar compounds and...
2.8K
01:12Carbon Skeletons
115.4K
Life on Earth is carbon-based, as all macromolecules that make up living organisms contain carbon atoms. All organic compounds have a carbon backbone. Each carbon atom is tetravalent and can bond with four other atoms, making it an extraordinarily flexible component of biological molecules. Because carbon’s valence electrons are stable, it rarely becomes an ion. As the carbon chain increases in length, structural modifications such as ring structures, double bonds, and branching side...
115.4K
02:41Protein Complex Assembly
16.8K
Proteins can form homomeric complexes with another unit of the same protein or heteromeric complexes with different types. Most protein complexes self-assemble spontaneously via ordered pathways, while some proteins need assembly factors that guide their proper assembly. Despite the crowded intracellular environment, proteins usually interact with their correct partners and form functional complexes.
Many viruses self-assemble into a fully functional unit using the infected host cell to...
Many viruses self-assemble into a fully functional unit using the infected host cell to...
16.8K