Charaterization of volatile compound adsorbed on metal oxide

Volatile compounds such as acetone (C₃H₆O), formaldehyde (CH₂O), etc. have been known as hazardous substance. They were utilized in various applications as well as a biomarker. Recently, many materials have been developed for volatile compounds detection because of their advantages in physical and chemical properties. Nevertheless, metal oxide has been recently a renowned material because of its excellent properties compared with the other, such as electrical property, optical property, etc. However, the investigation of volatile compounds sensing response has been still a limitation. In the present research, iron plate was treated by using alkaline solution. Then metal oxide was formed based on hydrothermal method. The previous FTIR results revealed spectral changes in the range of 1800 – 1000 cm^-1 when acetone adsorbed on the surface of iron oxide. By reason of cost and simple sample preparation, volatile compounds detection on metal oxide has been monitored. Volatile compounds adsorbed on metal oxide surface caused change of conductivity of the metal oxide.