Adsorption of lead ion concentration from the aqueous solution using tobacco leaves. (2021)

• Record Type: Journal Article
• Authors: Yogeshwaran, V.; Priya, A.K.
• Is Part Of: Materials today. Volume 37(2021)Supplement Part 2
• Page Start: 489
• Page End: 496
• Publication Date: 2021
• Subjects: Tobacco Leaves -- Adsorption -- Batch Adsorption study -- Isotherm & Kinetic models; Materials science -- Congresses -- Periodicals; 620.1
• DOI: 10.1016/j.matpr.2020.05.467
• Languages: English
• ISSNs: 2214-7853

Abstract

Abstract: Removal of heavy metal ions and dyes are the most complicated process in the industrial wastewater treatment technologies. Presence of heavy metal ions in the wastewater may create the poisonous effects to aquatic life and surrounding environments. In this present investigation, the removal of Lead (II) ion concentration from the aqueous solution was investigated using tobacco leaves as an adsorbent. The physical & chemical properties of tobacco leaves were examined by FT-IR spectra analysis and the detailed SEM & EDAX analysis of tobacco leaves, before and after adsorption of lead (II) also investigated. Batch adsorption studies were carried out by adjusting various adsorption parameters such as pH, Contact time, Adsorbent concentration & dosage and temperature. The maximum adsorption efficiency of 67.45% was achieved at the pH of 1.0, temperature of 30 °C, contact time of 80 min and the adsorbent dosage of 0.5 g/L. Adsorption isotherm studies was carried out and the Langmuir & Freundlich adsorption isotherm models were followed in this adsorption experimentation. Kinetic studies also carried out in this process and the pseudo second order model was fitted for the kinetic data. Based on the above results, it can be concluded that the tobacco leaves could be a best adsorbent for the heavy metal ions from aqueous solutions.