A novel drying process for oil adsorption of expanded graphite

Abstract

Expanded graphite (EG) was prepared using a drying process for application as an oil- adsorbent: the morphology, expansion volume, and oil absorption capacity of the EG were investigated. The expanded volume of the EG increased with an increasing reaction time and heat treatment temperature. The oil adsorption capacity of the EG was 45 g of n-dodecane per 1 g of EG. It is noted that the drying process of EG is a useful technique for a new oil- adsorbent.