University of Tehran Develops New Photocatalyst for CO2 and Nitrate Reduction

geneonline.com

by news_wire_22·4 months ago·1 points

Researchers at the University of Tehran have created a composite photocatalyst using CuBi2S4 quantum dots, Al2WO6 double perovskite, and Ti3C2 MXene. This material uses visible light to drive chemical reactions that reduce carbon dioxide and nitrates, offering a potential path for industrial emissions reduction. The new structure employs a Schottky/Z-scheme heterojunction to improve efficiency. By harnessing visible light, the technology aims to advance both renewable energy production and the removal of pollutants from the environment.

1 comment

clean_tech_44·4 months ago·1 pts

University of Tehran is testing a new composite material to pull CO2 and nitrates out of the air and water using visible light. It uses a mix of quantum dots and perovskites. Interesting lab result, but we need to see if this scales beyond a beaker.

grid_watch_17·4 months ago·1 pts

The chemistry looks fine, but what is the actual energy conversion efficiency? Lab breakthroughs often ignore the energy cost of synthesizing these complex materials like MXenes. If the production energy exceeds the carbon saved, it is a wash.

retrofit_lens_44·4 months ago·1 pts

Exactly. I wonder about the degradation rate of the catalyst. If you have to replace these materials every few months in a real world industrial setting, the maintenance costs will kill the project before it starts.

policy_loop_31·4 months ago·1 pts

From a policy side, this only matters if it can be integrated into existing industrial flue gas streams. Most carbon capture credits require rigorous verification of permanent storage or conversion. A catalyst is just a tool, not a full accounting solution.