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Related Concept Videos

Carbon-dioxide Fixation01:28

Carbon-dioxide Fixation

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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...
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Green Algae01:21

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Green algae, also referred to as chlorophytes, are different from red algae in having the chloroplasts containing chlorophylls a and b, which give them their distinct green hue. However, they lack phycobiliproteins, preventing them from developing the red or blue-green pigmentation seen in red algae. In terms of photosynthetic pigment composition, green algae closely resemble plants and share a close evolutionary relationship with them. Taxonomically Green algae belong to Phylum Chlorophyta in...
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Microorganisms play a pivotal role in maintaining ecosystem balance by recycling essential elements such as carbon, nitrogen, and phosphorus, as well as supporting processes like bioremediation, wastewater treatment, and biofuel production.Microbes in Elemental CyclesIn the carbon cycle, microorganisms decompose organic matter, releasing carbon dioxide via aerobic respiration. This carbon dioxide is subsequently used by photosynthetic organisms to synthesize organic compounds, closing the...
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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.
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Photosynthesis is a multipart, biochemical process that occurs in plants as well as in some bacteria. It captures carbon dioxide and solar energy to produce glucose. Glucose stores chemical energy in the form of carbohydrates. The overall biochemical formula of photosynthesis is 6 CO2 + 6 H2O + Light energy → C6H12O6 + 6 O2. Photosynthesis releases oxygen into the atmosphere and is largely responsible for maintaining the Earth’s atmospheric oxygen content.
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All living organisms on Earth are directly or indirectly dependent on photosynthesis. It is the only biological process that can capture energy from sunlight and convert it into chemical energy that every organism can use to power its metabolism. Photosynthesis is also the source of oxygen required by many living organisms.
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Related Experiment Video

Updated: Mar 6, 2026

Solar-Driven Electrochemical Green Fuel Production from CO2 and Water Using Ti3C2Tx MXene-Supported CuZn and NiCo Catalysts
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Unlocking Green Oxygen's Potential for Planetary Carbon Management.

Martin Held1, Jan Backmann2

  • 1Bioprocess Laboratory, D-BSSE/ETHZ, Basel, Switzerland.

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PubMed
Summary

Green hydrogen production yields abundant oxygen, presenting new opportunities for the chemical industry. Utilizing this byproduct can create efficient, non-fossil-based industrial networks for carbon management.

Keywords:
CCUSdefossilizationgreen H2/O2oxy‐fuelwaste‐to‐energy

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Area of Science:

  • Chemical Engineering
  • Green Chemistry
  • Sustainable Industry

Background:

  • The burgeoning hydrogen economy necessitates effective utilization of byproducts.
  • Electrolytic hydrogen production generates significant quantities of oxygen.
  • Current chemical industry efficiency relies on integrated, fossil-based networks.

Purpose of the Study:

  • To explore novel applications for oxygen produced via green hydrogen generation.
  • To identify opportunities for integrating green oxygen into future chemical industry networks.
  • To address challenges in scaling and implementing green oxygen utilization.

Main Methods:

  • Perspective-based analysis of current and future chemical industry trends.
  • Evaluation of green oxygen's potential role in industrial symbiosis.
  • Identification of regulatory and scalability barriers.

Main Results:

  • Green oxygen can be a key component in developing efficient, integrated chemical industry networks.
  • Utilization of green oxygen supports planetary carbon management goals.
  • The development of a non-fossil-based chemical industry is facilitated by green oxygen.

Conclusions:

  • Leveraging byproduct oxygen from green hydrogen is crucial for sustainable industrial development.
  • Overcoming regulatory hurdles is essential for realizing the potential of green oxygen.
  • Green oxygen offers a pathway to a more sustainable and carbon-efficient chemical sector.