Kinetics and Equilibrium of Fe3+ Ions Adsorption on Carbon Nanofibers

5th International Conference on Advanced Materials Sciences and Technology

Alimin^1 ; La Agusu^2 ; Ahmad, L.O.^1 ; Kadidae, L.O.^1 ; Ramadhan, L.^1 ; Nurdin, M.^1 ; Isdayanti, N.^1 ; Asria^1 ; Aprilia, M.P.^1 ; Hasrudin^1

Department of Chemistry, Universitas Halu Oleo, Kampus Hijau Bumi Tridharma, Anduonohu-Kendari

93232, Indonesia^1

Department of Physics, Universitas Halu Oleo, Kampus Hijau Bumi Tridharma, Anduonohu-Kendari

93232, Indonesia^2

关键词: Adsorption equilibria;    Adsorption kinetics;    Contact time;    Interaction time;    Ion adsorption;    Ions adsorption;    Liquid phase adsorption;    Pseudo second order;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/367/1/012046/pdf
DOI  :  10.1088/1757-899X/367/1/012046

来源: IOP

【 摘 要 】

Generally, the interaction between metal ions and adsorbent is governed by many factors including; concentration of metal ions, interaction time and solution pH. In this work, we applied liquid phase adsorption for studying the interaction between Fe3+ions and Carbon Nanofibers (CNFs) irradiated by ultrasonic waves. Kinetics and isotherms model of the Fe3+ion adsorption was investigated by varying contact time and pH. We found that the Fe3+ions were efficiently adsorbed on CNFs for 0.5 h in acidic pH of around 5. In order to obtain the best-fitted isotherms model, Langmuir and Freundlich's isotherms were used in this work. The adsorption equilibrium Fe3+metal ions on CNFs tend to follow Langmuir. Adsorption kinetics of Fe3+ions on CNFs were investigated by using both pseudo-first and pseudo-second orders. The adsorption kinetics coincided well with the pseudo-second-order.