Abstract
In this study, a highly efficient and economical method was used to remove E127 dye using commercial kaolin (CK) as the adsorbent. The optimal pH for adsorption was found to be 4.7, and the maximum surface concentration of the dye was 53.8 mg.g-1 when 125 mg of adsorbent was used. The Freundlich isotherm was used to describe the adsorption process, which suggested that the active sites in the adsorption process were randomly selected. The adsorption capacity (qmax), enthalpy (?H), and entropy (?S) were calculated to be 74.6 mg.g-1, -12.3 KJ.mol-1, and 75.0 J.mol-1, respectively. Both thermodynamic and kinetic analyses indicated that the adsorption process was spontaneous, involved physical adsorption, and followed the pseudo-second-order (PSO) model. The method was effective in extracting the E127 dye up to four times.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callMore From: International Journal of Membrane Science and Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
