Artificial photosynthesis to provide solutions for carbon capture and conversion | Daily Current Affairs 2021
1xbet 1xbet bahisno1 bahsegel casino siteleri ecopayz güvenilir bahis siteleri canlı bahis siteleri iddaa marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis marsbahis restbet canlı skor süperbahis mobilbahis marsbahis marsbahis marsbahis marsbahis

Artificial photosynthesis to provide solutions for carbon capture and conversion

Posted by
Subscribe for News Feed

A team of Scientists from Jawaharlal Nehru Centre for Advanced Scientific Research, an autonomous institute of the Department of Science & Technology (DST), Government of India (GoI) have found a method to mimic nature’s own process of reducing carbon dioxide in the atmosphere, namely photosynthesis, to capture excess carbon dioxide in the atmosphere.

Key Points:

  • The scientists from JNCASR designed and fabricated an integrated catalytic system based on a metal-organic framework (MOF-808).
  • The system comprising of a photosensitizer (molecules which absorb light and transfer the electron from the incident light into another nearby molecule) can harness solar power and a catalytic centre that can eventually reduce CO2.
  • The artificial photosynthesis (AP) method harnesses solar energy and converts the captured carbon dioxide to carbon monoxide (CO).
  • Then this CO can be used as a fuel for internal combustion engines.
  • The work described above has been accepted for publication in the journal ‘Energy& Environmental Science’ of Royal Society of Chemistry, UK.

About Photosensitizer:

  • Photosensitizers are molecules which absorb light (hν) and transfer the energy from the incident light into another nearby molecule.
  • It is chemically called “ruthenium bipyridyl complex ([Ru(bpy)2Cl2])”.
  • It also comprises of a catalytic part called rhenium carbonyl complex ([Re(CO)5Cl]).
  • Both of the molecular entities lie in the close proximity and are confined to a nano-space of the porous metal-organic framework system.
  • This helps in absorbing the CO2 at room temperature.
  • The catalyst has the capability to oxidize the water in order to produce oxygen.
  • This photocatalytic assembly is when assessed to reduce the CO2 under direct sunlight under a water medium, it produces CO.

About Artificial Photosynthesis:

  • Artificial photosynthesis is a chemical process that biomimics the natural process of photosynthesis to convert sunlight, water, and carbon dioxide into carbohydrates and oxygen.
  • The term artificial photosynthesis is commonly used to refer to any scheme for capturing and storing the energy from sunlight in the chemical bonds of a fuel (a solar fuel).
  • Photocatalytic water splitting converts water into hydrogen and oxygen and is a major research topic of artificial photosynthesis.
  • Light-driven carbon dioxide reduction is another process studied that replicates natural carbon fixation.

Difference between Natural photosynthesis and Artificial photosynthesis:

Natural photosynthesis is very inefficient in terms of solar-to-biomass conversion.

Artificial photosynthesis short-circuits the natural process by utilizing the most energetically efficient primary events of light capture, charge separation and charge transfer.

About JNCASR:

  • Jawaharlal Nehru Centre for Advanced Scientific Research (JNCASR) is a multidisciplinary research institute located at Jakkur, Bangalore, India.
  • It is an autonomous institute which was established by the Department of Science and Technology (DST) of the Government of India, to mark the birth centenary of Pandit Jawaharlal Nehru.
  • Pt. Jawaharlal Nehru was the first prime minister of independent India.

Subscribe for News Feed