Event date:
Jul 15 2021 11:00 am

Co/Zn-ZIF-L decorated on flexible BaTi2O5 nanofibers for hydrogen production coupled with organic pollutants degradation

Dr. Salman Noshear Arshad
Iram Aziz
Zoom Meetings (Online)
PhD Research Seminar
Coupling clean energy generation and environmental remediation using novel material designs and technologies is very promising. Herein, we propose the design of heterojunction photocatalysts using porous metal-organic frameworks (MOFs) and a semiconductor support for simultaneous H2 generation as well as organic pollutants degradation in wastewater. For the concept validation, hierarchical structures containing leaf like Co and Zn-ZIF-L nanoplates decorated on BaTi2O5 (BT2) nanofibers (NFs) were fabricated and investigated. A significant improvement in the photoelectrochemical (PEC) water splitting was observed owing to the synergistic effects resulting from the preferred band energies alignment of BT2 and Co-ZIF-L. The efficient electron-hole pair separation and high solar energy harvesting were achieved. Methylene blue as a model pollutant was employed to elucidate the effect of pollutant degradation efficiency on H2 production. The Co-ZIF-L@BT2 exhibited high photocurrent density with 0.33 mA cm-2 at 1 V versus Ag/AgCl. Meanwhile, 76 % of methylene blue is degraded in 120 min from wastewater. The present work evaluates the synergistic effect of well-integrated composite photocatalysts toward the performance enhancement in simultaneous pollutant degradation and H2 production. Also, it provides deep insight into the pollutant role towards boosting H2 production.

Meeting Link: https://lums-edu-pk.zoom.us/j/93240394650?pwd=aUUxUVdTejFpYXB3bmplVmdBcVV5QT09

Meeting ID: 932 4039 4650

Passcode: 758905