Events Calendar

Queen's University Queen's University

Coronavirus COVID-19 update:
Calendar events have been impacted by evolving COVID-19 guidelines.
Visit the Events and Gatherings information page on the COVID info website for updates...

Events Calendar Header


Events Calendar

Admin Menu

Dr. Audrey Moores presents the Green Chemistry Lecture

Friday, September 20, 2019
11:30 AM – 1:00 PM
Chernoff Hall
Room: 117
Find on Campus Map

Solvent-free Approaches to Nanoparticles Synthesis and Polymer Functionalization and Plasmonic Catalytic Hydrogenation Reactions

Abstract: Nanomaterials are intensely researched for their powerful properties applicable in the broad fields of medicine, electronics, optics and catalysis. We developed a novel synthetic method for the scalable production of metal and metal sulfide NPs under solvent-free, mechanochemical conditions. The synthesis of Au NPs provided access to monodisperse and ultra-small NPs in the size range of 1–4 nm, without external reducing agents or bulk solvents.1 Using lignin as a biomass-based reducer, we could access embedded NPs of Au, Ru, Pd and Re.2 With Ag, this method gave access to antibacterial filters in a simplified fashion.3 We also explored the synthesis of metal sulfide with similar Bi2S3 nanoparticles were easily synthesized by mechanochemical activation from molecular precursors and cysteine as a sulfur source, followed by aging to afford X-ray active materials. These materials are exciting candidates for cancer detection.4 In last examples, I’ll illustrate how mechanochemistry and aging techniques may be used towards the efficient functional of man-made and biomass based polymers, such as cellulose nanocrystals5 and chitin.6

To read more, please visit our website below.


  • If this event listing appears to have errors or inaccuracies, please notify the event's Contact (see above).