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Related Concept Videos

Phase Diagrams02:39

Phase Diagrams

A phase diagram combines plots of pressure versus temperature for the liquid-gas, solid-liquid, and solid-gas phase-transition equilibria of a substance. These diagrams indicate the physical states that exist under specific conditions of pressure and temperature and also provide the pressure dependence of the phase-transition temperatures (melting points, sublimation points, boiling points). Regions or areas labeled solid, liquid, and gas represent single phases, while lines or curves represent...
Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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...
Carbon Dioxide Transport in the Blood01:19

Carbon Dioxide Transport in the Blood

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...
The Carbon Cycle01:14

The Carbon Cycle

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.
Bioremediation00:46

Bioremediation

Bioremediation is the use of prokaryotes, fungi, or plants to remove pollutants from the environment. This process has been used to remove harmful toxins in groundwater as a byproduct of agricultural run-off and also to clean up oil spills.
Overview Of Cell Separation And Isolation01:20

Overview Of Cell Separation And Isolation

Cell separation was first achieved in 1964 by S. H. Seal, who separated large tumor cells from the smaller blood cells using filtration. Two years later, Pohl and Hawk performed experiments on how cells respond differently to a nonuniform electric field based on the cell type. Such observations were the inception of cell separation methods, which allow isolating a single cell type from a heterogeneous sample.

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Related Experiment Video

Updated: Jul 4, 2026

A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture
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A Synthetic Methodology for Preparing Impregnated and Grafted Amine-Based Silica Composites for Carbon Capture

Published on: September 29, 2023

Progress in carbon dioxide separation and capture: a review.

Hongqun Yang1, Zhenghe Xu, Maohong Fan

  • 1Department of Chemical and Materials Engineering, University of Alberta, Edmonton, AB T6G 2G6, Canada. hongqun@ualberta.ca

Journal of Environmental Sciences (China)
|June 25, 2008
PubMed
Summary

This review covers advances in carbon dioxide (CO2) capture and sequestration technologies. It discusses established methods like absorption and adsorption, alongside emerging techniques for a sustainable future.

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Published on: October 25, 2017

Area of Science:

  • Environmental Science
  • Chemical Engineering
  • Geology

Background:

  • Growing atmospheric carbon dioxide (CO2) levels necessitate effective capture and sequestration strategies.
  • Research and engineering efforts are crucial for developing scalable CO2 mitigation technologies.
  • Understanding diverse separation and sequestration methods is key to addressing climate change.

Purpose of the Study:

  • To provide a comprehensive review of current CO2 separation and capture technologies.
  • To introduce novel concepts in CO2 capture and sequestration.
  • To suggest future research directions in the field of carbon management.

Main Methods:

  • Detailed discussion of absorption, adsorption, and membrane separation techniques.
  • Brief introduction to chemical-looping combustion and hydrate-based separation.
  • Overview of sequestration methods including forestation, ocean fertilization, and mineral carbonation.

Main Results:

  • Established technologies like absorption and adsorption remain central to CO2 capture.
  • Emerging methods offer potential for enhanced efficiency and broader applicability.
  • Various sequestration pathways exist, each with distinct environmental implications.

Conclusions:

  • Continued innovation in CO2 separation and capture is vital.
  • A portfolio of sequestration strategies is needed for effective long-term carbon management.
  • Further research is required to optimize and implement these technologies at scale.