Bio-sorption of As(V) from Aqueous Solutions by Thuja Occidentalis Leaves Activated [email protected] Embedded Material

Document Type : Regular Article

Authors

1 Department of Chemistry, G M R Institute of Technology, Rajam, Andhra Pradesh, India 532127

2 Department of Physics, G M R Institute of Technology, Rajam, Andhra Pradesh, India 532127

10.22036/pcr.2022.335166.2064

Abstract

In the current work, Thuja Occidentalis leaves carbon blended with Alumnium ([email protected]) was chosen as a precursor material for the As(V) adsorption from an aqueous solution. The parameters which influence the adsorption strength viz., pH, [email protected] dosage, contact period and initial arsenic concentration were studied. Characterization studies such as FTIR and SEM were performed to know surface morphology. The results demonstrate that [email protected] has a potential for the adsorption of arsenic ions (94.1% removal efficiency) at pH 6.00 under room temperature. Langmuir adsorption isotherm (R2= 0.9953) displayed the best fit.The maximum adsorption capacity (Qm) was obtained as 24.44 mg g-1 and adsorption favors uni-layered uptake. Kinetic study demonstrated that the pseudo-second-order model (R2= 0.9959) is the better fit and adsorption takes place through chemisorption. Regeneration studies reveal that the adsorbent is regenerated using sodium hydroxide solution and is reused for the adsorption of As(V). Higher absorption of As(V) ions was recorded with the [email protected] when compared to some other standard/ commercial adsorbents. Hence, [email protected] adsorbent can be a better material for As(V) ion removal.

Graphical Abstract

Bio-sorption of As(V) from Aqueous Solutions by Thuja Occidentalis Leaves Activated Carbon@Al Embedded Material

Keywords