Abstract
This research article deals with an in situ electrosynthesis of metal hydroxides by anodic dissolution of different sacrificial anodes and their application for the adsorption of 4-chloro-2-methylphenoxyacetic acid (MCPA) from aqueous solution. Materials like iron, magnesium, zinc and aluminum are used as sacrificial anodes. The optimization of different experimental parameters like initial concentration, current density, pH, temperature, inter electrode distance etc., on the removal efficiency of MCPA was carried out. The maximum removal efficiency of 83.72% was achieved with magnesium as sacrificial anode at a current density of 0.10Adm−2 and pH of 7.0. The adsorption of MCPA preferably followed the Langmuir adsorption isotherm. The adsorption kinetic studies showed that the adsorption of MCPA was best described using the second-order kinetic model. Thermodynamic parameters indicate that the adsorption of MCPA on magnesium hydroxides was feasible, spontaneous and endothermic. Results from the pilot plant study confirm the laboratory scale study. FTIR analysis confirmed that MCPA was adsorbed on to the magnesium hydroxide.
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.
