Photodegradation of wood at elevated temperature: Infrared spectroscopic study

► Wood samples were irradiated by mercury vapour lamp at 30 °C and at 80 °C. ► The effect of temperature on photodegradation of wood was studied. ► Chemical changes were detected by IR spectroscopy. ► Results demonstrated that the same light irradiation resulted in considerably greater changes at 80 °C than at 30 °C.