Physical Chemistry Division present
PhysChem Webinar Series -3
29 July 2020 1-2.30pm AEST
The formal one hr session will be followed by 30 min informal breakout sessions where you can have a virtual afternoon chat with other community members.
Speakers: Martina Lessio (University of New South Wales) and Siobhan Bradley (University of Melbourne)
Computational Insights Into Heavy Metal Removal from Water Using Metal-Organic Frameworks
Claudia S. Cox, Valeria Cossich Galicia, Martina Lessio* (University of New South Wales)
Climate-change driven extreme weather conditions, population growth, and increasing levels of pollution are making water scarcity a compelling challenge of our age. In this scenario, developing cost-effective technologies for water purification is a top scientific priority. Recent experimental reports have shown that metal-organic frameworks (MOFs) can be used for this purpose. MOFs are porous materials with exceptionally high surface area; hence they are ideal for adsorption and separation techniques that are at the heart of technologies for water purification. In this talk, I will present some preliminary results from quantum-mechanics based simulations on the interaction between the UiO-66 MOF and heavy metal species. These results allow us to gain chemical insights into recent experimental findings, which are needed to develop improved systems.
Excited state dynamics in linked diketopyrrolopyrrole derivatives
Siobhan Bradley (University of Melbourne)
Sustainable solutions to the worlds growing energy demands require ever more efficient energy conversion devices. Singlet fission (SF) is a photophysical process which can get around the Shockley-Queisser limit allowing for higher efficiency solar cells. To date, a very limited number of chromophores have been studied in the context of singlet fission. One of the lesser studied chromophores is diketopyrrolopyrrole (DPP). DPP derivatives show promise as they meet the energetic requirements for SF (ES1≥2ET1) and exhibit superior photostability over other well-known SF chromophores. In this talk I briefly introduce the concept of singlet-fission before presenting a study of the photophysical processes occurring in a series of diketopyrrolopyrrole systems – from bichromophoric dimers through to nanoparticles and thin films, discussing the important role that molecular conformation plays in the process.
Cost:
Free for RACI and reciprocal society members - (Reciprocal society members - Contact [email protected] for further details)
$10 for Non-Members
If you are not a RACI but would like to join (from $25 for student members), please click here for more information.
How to Connect
The Zoom link will be emailed to you closer to the event date.
For further information, please contact Event Organiser Laura McKemmish
If you are not an RACI Member, or do not have an RACI account, you will need to create one in the sign in area to register for this event.