Supported gold nanoparticle catalyst can upcycle polyester and biomass. Researchers from Tokyo Metropolitan University have found that gold nanoparticles supported on a zirconium oxide surface help turn waste materials like biomass and polyester into organosilane compounds, valuable chemicals use
Scientists have discovered that gold nanoparticles supported on a zirconium oxide surface can turn waste materials like biomass and polyester into organosilane compounds, which are valuable chemicals used in various applications. The protocol is a greener and less demanding method for upcycling waste, leveraging the cooperation between gold nanoparticles and the amphoteric nature of the zirconium oxide support.
Ethers and esters are reacted with a disilane in the presence of a hybrid catalyst consisting of gold nanoparticles mounted on a zirconium oxide substrate. The presence of the gold nanoparticles and both acidic and basic sites on the support helps convert the ethers and ester groups to silane groups. Credit: Tokyo Metropolitan University
Now, the team has applied a hybrid catalyst material consisting of gold nanoparticles supported on a zirconium oxide support. The catalyst takes ether and ester groups, both abundant in plastics like polyester and biomass compounds like cellulose and helps them react with a silicon-containing compound known as a disilane. Under mild heating in solution, they successfully created organosilane groups where the ester or ether group was situated.
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