Abstract-Water adsorption dynamics into active carbon probed by terahertz spectroscopy

Honglei Zhan,   Shixiang Wu,   Rima Bao,   Kun Zhao,   Lizhi Xiao,  Lina Ge and   Hongjie Shi  

RSC Adv., 2015, Accepted Manuscript

DOI: 10.1039/C4RA14730H
Received 17 Nov 2014, Accepted 12 Jan 2015
First published online 12 Jan 2015
http://pubs.rsc.org/en/content/articlelanding/2015/ra/c4ra14730h#!divAbstract


It is vital to characterize the adsorption dynamics in oil-gas reservoirs and pollution control industry. Terahertz (THz) spectroscopy was used to study the adsorption of the water molecules into active carbons. The absorbance at selected frequencies and the first principal component scores over the whole THz range were related to the corresponding time lengths. The collective tendency expressly tracked the dynamics of water adsorbed into active carbon pores. Therefore, THz technique can be used as a promising tool to monitor the adsorption issue in petroleum and environment fields.