MATEC Web of Conferences
Volume 27, 20152015 4th International Conference on Engineering and Innovative Materials (ICEIM 2015)
|Number of page(s)||4|
|Section||Material processing and preparation technology|
|Published online||20 October 2015|
Adsorption of Pb(II) Ions on Sulfuric Acid Treated Leucaena leucocephala Leaf Powder
1 Faculty of Applied Sciences, Universiti Teknologi MARA, 40450, Shah Alam, Malaysia
2 Faculty of Applied Sciences, Universiti Teknologi MARA, 26400, Jengka, Pahang, Malaysia
Sulfuric acid treated Petai belalang (Leucaena leucocephala) leaf powder (SLLP) was used as an adsorbent for Pb(II) ions removal. The experimental adsorption parameters investigated include pH, dosage and initial Pb(II) concentration. Pb(II) removal was more favored at a higher adsorbent dosage, pH and temperature. Adsorption kinetics conformed to the pseudo-second order model while Langmuir isotherm model recorded the value of maximum adsorption capacity (qmax) of 222 mg/g. The major functional groups involved in the adsorption process were identified as hydroxyl, amino and ether as revealed by the FTIR analysis. The prepared adsorbent demonstrated a potential application for efficient removal of Pb(II) ions from industrial wastewater.
© Owned by the authors, published by EDP Sciences, 2015
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