An Investigation of Dispersion and Stability of Carbon Black Nano Particles in Water via Uv-Visible Spectroscopy

Abstract

Study of the quality of carbon black dispersion by using UV-Visible Spectroscopy was carried out. Carbon materials have a main absorption around 200 nm (UV region) due to π→π* excitation. Based on UV absorption of carbon black and the parameter affects the absorption, UV Visible spectroscopy was used to study CB dispersion. Result showed that Triton X-100 was proper kinds of dispersant which resulted in higher UV absorption compared to other used dispersants. Also proper weight ratio of Triton X-100 to initial carbon solid was calculated of 50 wt% which no significant change was observed for sample containing higher amount of dispersant. Finally AFM images and PSA results asserted the results obtained from UV-Visible Spectroscopy.