A room-temperature defluorination method proposed by researchers at Ritsumeikan University could revolutionize PFAS treatment

  • Media Bias Fact Checker@lemmy.worldB
    link
    fedilink
    arrow-up
    13
    arrow-down
    8
    ·
    3 months ago
    Phys.org Media Bias Fact Check Credibility: [High] (Click to view Full Report)

    Phys.org is rated with High Creditability by Media Bias Fact Check.

    Bias: Pro-Science
    Factual Reporting: High
    Country: United Kingdom
    Full Report: https://mediabiasfactcheck.com/phys-org/

    Check the bias and credibility of this article on Ground.News:
    - https://ground.news/find?url=https%3A%2F%2Fphys.org%2Fnews%2F2024-07-room-temperature-defluorination-method-chemicals.html


    Media Bias Fact Check is a fact-checking website that rates the bias and credibility of news sources. They are known for their comprehensive and detailed reports.

    Thanks to Media Bias Fact Check for their access to the API.
    Please consider supporting them by donating.

    Beep boop. This action was performed automatically. If you dont like me then please block me.💔
    If you have any questions or comments about me, you can make a post to LW Support lemmy community.

    • Sludgehammer@lemmy.world
      link
      fedilink
      English
      arrow-up
      13
      arrow-down
      1
      ·
      3 months ago

      Bias: Pro-Science

      ???

      How could a science reporting website avoid a pro-science bias? For that matter what is a pro-science bias? Is it listening to experts in their fields or demanding studies for proof or something?

  • A_A@lemmy.world
    link
    fedilink
    arrow-up
    1
    ·
    3 months ago

    … using cadmium (also toxic) :
    “The proposed method involves irradiating visible LED light onto cadmium sulfide (CdS) nanocrystals and copper-doped CdS (Cu-CdS) nanocrystals with surface ligands of mercaptopropionic acid (MPA) in a solution containing PFAS, FPs, and triethanolamine (TEOA).”

    • Bell@lemmy.worldOP
      link
      fedilink
      arrow-up
      2
      ·
      3 months ago

      I think elemental cadmium is toxic, I’m not sure CdS is. It is used in many many light detecting circuits. I think the CdS is used as a catalyst here anyway, so not depleted in use.

      • A_A@lemmy.world
        link
        fedilink
        arrow-up
        1
        ·
        edit-2
        3 months ago

        CdS is insoluble in pure water, yet :

        Cadmium sulfide is toxic, especially dangerous when inhaled as dust, and cadmium compounds in general are classified as carcinogenic. (…) https://en.m.wikipedia.org/wiki/Cadmium_sulfide

        ideally you will hope to have a process in which this powder will be supported on a stable substrate … but eventually, if you don’t use pure water, any impurity can have any chemical composition … so, if you are working in the real world with a mix of unknown soup, you will end up with chemical reactions … especially if there is some acids you will leach out the cadmium as soluble compounds or you may get fragmentation and powder coming out, going to the environment, pickied up by wind, creating dust in the air (…) .

        Still, the process might be viable if well controlled and if the gain by eliminating PFAS is great enough.

        P.S. this process involves liberation of fluoride so you will get :
        Cadmium fluoride : Solubility in water 4.35 g/100 ml https://en.m.wikipedia.org/wiki/Cadmium_fluoride