Photocatalytic process depends on electron excitation of photocatalytic materials upon exposure to the UV light. The electron migration indirectly leads to the production of ROS, which can damage cell wall/cell membrane/DNA or alter proteins. There is an ongoing debate on whether enveloped or non-enveloped viruses are more susceptible to photocatalytic inactivation.

• Inactivation of SARS-CoV-2 with Photocatalytic Nanomaterials