Photocatalytic Reduction of CO2
Recently, issues related to global warming and climate change are receiving consideration attention all over the world. Persistent anthropogenic CO2 emission raises the global temperature through absorption of infrared light and re-emitting it. This phenomenon leads to the possibility of extreme seasonal weather. Not only reducing CO2 emission but also capturing CO2 has become an urgent problem to be solved.
The traditional way to capture CO2 is to store it in depleted oil/gas wells or injection into geological formations for enhancing the recovery of oil, coal bed methane and gas. Currently, attention has shifted towards CO2 utilization for the production of value-added chemicals like methanol (CH3OH), formaldehyde (HCHO) and formic acid (HCOOH). However, conventional technologies are capital intensive due to the high energy requirement.
Our research focuses on reduction of CO2 to the above mentioned value-added chemicals and CO via photocatalysis, by using highly robust, inexpensive metal oxide semiconductors and solar energy, which is naturally abundant. We intend to improve efficiency of the photocatalysts by doping with appropriate cocatalysts and also understand the underlying mechanism by spectroscopies and other advanced technologies.
- 2016-2019: EPSRC CO2 conversion to fuels and chemicals
- 2010-2013: EPSRC Nanostructured catalysts for CO2 conversion