Adsorption of Lead ions onto Activated Carbon derived from Sugarcane bagasse

7th International Conference on Key Engineering Materials

材料科学;工业技术

Salihi, I.U.^1 ; Kutty, S.R.M.^1 ; Isa, M.H.^1

Department of Civil and Environmental Engineering, Universiti Teknologi PETRONAS (UTP), Bandar Seri Iskandar Perak, Darul Ridzuan

32610, Malaysia^1

关键词: Adsorption capacities;    Adsorption process;    Batch adsorption experiments;    Batch adsorption tests;    Equilibrium adsorption;    Nitrogen flow rates;    Removal efficiencies;    Sugar-cane bagasse;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/201/1/012034/pdf
DOI  :  10.1088/1757-899X/201/1/012034

来源: IOP

【 摘 要 】

In this study, activated carbon was developed from sugarcane bagasse and its effectiveness in adsorbing lead (Pb2+) ions from synthetic aqueous solution was examined. Sugarcane bagasse activated carbon (SCBA) was developed in a tube furnace at a temperature of 900 °C, a heating rate of 10 °C/min, residence time of 3 hours, and at a nitrogen flow rate of 100 mL/min. Batch adsorption experiments were carried out to investigate the effects of pH and SCBA dosages on the adsorption process. The batch adsorption test showed that extent of Pb2+adsorption by SCBA was dependent upon pH and SCBA dosage. The optimum pH for Pb2+adsorption was found to be at pH 5.0. Maximum Pb2+removal efficiency obtained from the batch studies was 87.3 % at SCBA dosage of 10 g/L. Equilibrium adsorption data was described by Langmuir model with a coefficient of determination (R2) of 0.9508. Maximum adsorption capacity according to Langmuir model was evaluated to be 23.4 mg/g. The adsorption capacity of the SCBA was compared with that of other plant-based adsorbents. SCBA is an effective adsorbent for the removal of Pb2+from aqueous solution.