Abstract
The kinetic, equiLibrium and thermodynamics of Cr(VI) adsorption from aqueous solution on cetylpyridinium bromide (CPB) modified zeoLite were investigated. CPB modified zeoLite displayed a good affinity to Cr(VI) in aqueous solution, and its Cr(VI) adsorption capacity decreased with the increase of the temperature. The kinetics of adsorption of Cr(VI) were discussed using the pseudo-first-order and pseudo-second-order kinetic models, and the experimental data agreed very well with the pseudo-second-order kinetic model. The adsorption isotherms were analyzed by the Langmuir, FreundLich and Dubinin-Redushkevich (D-R) isotherm models, and the experimental data were well described by all these isotherm models. Thermodynamic parameters such as Gibbs free energy change, enthalpy change and entropy change were calculated and the results showed that the adsorption of Cr(VI) on CPB modified zeoLite was spontaneous and exothermic in nature.
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.
