Abstract
TFC was used for chromium ions (III and VI) adsorption from aqueous solution. The total chromium removal was strongly affected by pH changes and reached a maximum value at pH 1. The adsorption process was well described by the Langmuir model. The thermodynamic parameters exhibited the feasibility and the spontaneous nature of the adsorption. The optimum adsorbent dose obtained for chromium adsorption onto TFC was 0.1g. The optimum contact time for chromium removal and treatment efficiency was 10 and 14h, respectively. The kinetic studies showed that the adsorption process could fit into a pseudo-second-order model and the particle diffusion process was the rate-limiting step of the adsorption process. The desorbing agents studied did not show any promising result for the TFC regeneration process. The FT-IR results showed that the Cr(VI) removal onto TFC occurs through an indirect reduction mechanism. According to XPS spectrum, the majority of the adsorbed Cr is Cr(III), only a small quantity of Cr(VI) remains loaded on the TFC surface.
Sign-in/Register to access full text options 
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 callDisclaimer: 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.
