• HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
Monday, September 29, 2025
BIOENGINEER.ORG
No Result
View All Result
  • Login
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
  • HOME
  • NEWS
  • EXPLORE
    • CAREER
      • Companies
      • Jobs
        • Lecturer
        • PhD Studentship
        • Postdoc
        • Research Assistant
    • EVENTS
    • iGEM
      • News
      • Team
    • PHOTOS
    • VIDEO
    • WIKI
  • BLOG
  • COMMUNITY
    • FACEBOOK
    • INSTAGRAM
    • TWITTER
No Result
View All Result
Bioengineer.org
No Result
View All Result
Home NEWS Science News Chemistry

Dalian coherent light source reveals oxygen production from three-body photodissociation of water

Bioengineer by Bioengineer
April 30, 2021
in Chemistry
Reading Time: 2 mins read
0
IMAGE
Share on FacebookShare on TwitterShare on LinkedinShare on RedditShare on Telegram

IMAGE

Credit: DICP

The provenance of oxygen on Earth and other solar planetary bodies is a fundamental issue. It is widely accepted that the prebiotic pathway of oxygen production in the Earth primitive atmosphere was via vacuum ultraviolet (VUV) photodissociation of CO2 and subsequent recombination of two O atoms.

In contrast, the photodissociation of H2O, one of the dominant oxygen carriers, has long been assumed to proceed mainly to produce hydroxyl (OH)- and hydrogen (H)-atom primary products, and its contribution to oxygen production is limited.

Recently, a research group led by Prof. YUAN Kaijun and YANG Xueming from the Dalian Institute of Chemical Physics (DICP) of the Chinese Academy of Sciences revealed oxygen production from the three-body photodissociation of water molecule using the Dalian Coherent Light Source.

Their findings were published in Nature Communications on April 30.

The VUV free-electron laser facility at the Dalian Coherent Light Source allows the researchers to quantitatively assess the importance of H2O photochemistry for oxygen production.

“Our experimental results indicated that H2O under VUV excitation can break into three fragments: one O atom and two H atoms, where the O atoms are in the 1D and 3P states. The three-body dissociation process is the dominant channel for H2O photochemistry in the 90-110 nm region,” said Prof. YUAN.

The quantitative determination demonstrated that approximately 20% of the H2O photoexcitation events resulted in O atoms. Considering the water abundance in widely interstellar circumstances such as in interstellar clouds, atmospheres of the solar-family comets, and even in the Earth primitive atmosphere, O production from water photolysis must be an important process. The subsequent recombination of O atoms produced O2, which represented an important prebiotic O2-production pathway.

###

This research was supported by the Strategic Priority Research Program of the Chinese Academy of Sciences, Chemical Dynamics Research Center, and the National Natural Science Foundation of China.

Media Contact
Jean Wang
[email protected]

Related Journal Article

http://dx.doi.org/10.1038/s41467-021-22824-7

Tags: AstronomyAstrophysicsChemistry/Physics/Materials SciencesSpace/Planetary Science
Share13Tweet8Share2ShareShareShare2

Related Posts

Global Call to Advance Robust and Reproducible Polyphenol Research to Launch Next October in Malta at Polyphenols Applications World Congress and Iprona

September 29, 2025
blank

Physicists Narrow the Search for Elusive Dark Matter

September 29, 2025

Lab Breakthrough in Mimicking Star Formation Wins Prestigious John Dawson Award

September 29, 2025

Scientists Achieve Chiral State Switching in Complex Many-Body Systems

September 29, 2025
Please login to join discussion

POPULAR NEWS

  • New Study Reveals the Science Behind Exercise and Weight Loss

    New Study Reveals the Science Behind Exercise and Weight Loss

    87 shares
    Share 35 Tweet 22
  • Physicists Develop Visible Time Crystal for the First Time

    73 shares
    Share 29 Tweet 18
  • How Donor Human Milk Storage Impacts Gut Health in Preemies

    58 shares
    Share 23 Tweet 15
  • Scientists Discover and Synthesize Active Compound in Magic Mushrooms Again

    56 shares
    Share 22 Tweet 14

About

We bring you the latest biotechnology news from best research centers and universities around the world. Check our website.

Follow us

Recent News

Universal Free School Meals Linked to Reduced High Blood Pressure in Students, UW Study Reveals

Innovative Tool Pinpoints Proteins Regulating Gene Activity

Separating Climate and Policy Uncertainties in Colorado River Management

Subscribe to Blog via Email

Enter your email address to subscribe to this blog and receive notifications of new posts by email.

Join 61 other subscribers
  • Contact Us

Bioengineer.org © Copyright 2023 All Rights Reserved.

Welcome Back!

Login to your account below

Forgotten Password?

Retrieve your password

Please enter your username or email address to reset your password.

Log In
No Result
View All Result
  • Homepages
    • Home Page 1
    • Home Page 2
  • News
  • National
  • Business
  • Health
  • Lifestyle
  • Science

Bioengineer.org © Copyright 2023 All Rights Reserved.