My RSS reader shows me a lot of papers in practical chemistry and I am astonished by what people are doing with Metal Organic Frameworks, Deep Eutectic Solvents, etc. (I sure wish I could get HNers to upvote some articles on these!)
Perhaps chemical recycling of plastics will always be an El Dorado like the fast breeder reactor, but it seems something is going to come out of all the efforts to cheapen hydrogen electrolysis, using CO2 as a feedstock material, figure out how to make something valuable out of cellulose better than
https://www.finc-sh.com/en/about.aspx
(the video on that page is worth watching the whole thing. My wife had bought those mushrooms and was wondering how the hell they could sell them so cheap, turns out they can grow those on straw without anybody laying a hand on them until they arrive at the grocer)