Adsorptive Potency of Activated Carbonized Avocado Pear Seeds (Persea Americana) and Activated Carbonized orange peels (Citrus Sinensis) in Eliminating Pb2+ ions in Contaminated Water
Okponmwense Moses and Alfred David Chukwuemeka
Keywords: Avocado, Orange, Physiosorption, Potency, Adsorptive.
Background: Heavy metals persistence in water brings about undesirable effect on man and animal because they are not degradable like other organic pollutants. Aim: The research work seek to examine adsorptive effectiveness of activated carbonized avocado pear seed as well as Activated Carbonized orange peels in getting rid of Pb2+ ions from contaminated water. Method: Carbonized Avocado Pear seed (CAPS) as well as carbonized orange peel (COP) was impregnated with Potassium hydroxide (KOH) in ratio 1:1 for 48 hours. The impregnated KOH CAPS and COP was separately washed and oven dried at 10 for 6 hours and thereafter heated in a muffle furnace (Carbolite AAF1100) at 2500C for 1 hour. The activated carbonized pear seed (ACAPS) and activated carbonized orange peel (ACOP) obtained was physicochemically described using SEM and FTIR. The adsorption route of Pb2+ ion on top of ACAPS as well as ACOP was examined by means of batch adsorption isotherm investigation. The Pb2+ ion adsorption pattern was assessed with Langmuir, DRK, Freundlich, Tempkin and Flory-Huggin isotherm models. Results: The SEM photograph, disclosed that ACAPS posessed numerous openings of different dimensions whereas ACOP possessed less openings of lesser dimensions. R2 worth ranging from 0.92 to 1.00 was got, indicating that the whole isotherm models were capable of elucidating the connection in the figures obtained. The Pb2+ ion had a firmer attraction and adsorption capacity for ACAPS. Overall, ACAPS was a superior adsorbent likened with ACOP for effectual elimination of Pb2+ ion owing to a blend of its numerous pores of different dimensions and it surface functional groups with a qm worth of 23.10 and 6.06mg/g in that order.