Before revision: Background The earliest and simplest sunlight-driven reforming (now referred to as photoreforming or PC reforming which forms a small sub-section of solar reforming; see Definition and classifications section below) of waste-derived substrates involved the use of archetypical TiO2 semiconductor photocatalyst (generally loaded with a hydrogen evolution co-catalyst such as Pt).
After revision: Background The earliest sunlight-driven reforming (now referred to as photoreforming or PC reforming which forms a small sub-section of solar reforming; see Definition and classifications section below) of waste-derived substrates involved the use of TiO2 semiconductor photocatalyst (generally loaded with a hydrogen evolution co-catalyst such as Pt).