Removal of cationic dye from aqueous solution using jackfruit peel as non-conventional low-cost adsorbent

• Published in: Journal of hazardous materials Vol. 162; no. 1; pp. 344 - 350
• Main Author: Hameed, B.H.
• Format: Journal Article
• Language: English
• Published: Kidlington Elsevier B.V 15.02.2009; Elsevier
• Subjects: Adsorption; Applied sciences; Artocarpus - chemistry; Chemical engineering; Coloring Agents - chemistry; Diffusion; Exact sciences and technology; Hydrogen-Ion Concentration; Isotherm; Jackfruit peel; Kinetics; Methylene blue; Methylene Blue - chemistry; Particulate Matter; Pollution; Refuse Disposal; Solutions; Spectrophotometry, Ultraviolet; Thermodynamics; Water; Isotherm; Kinetics; Adsorption; Jackfruit peel; Methylene blue; Second order; Correlation; Dyes; Adsorption isotherm; Adsorption capacity; Modeling; Langmuir isotherm; Kinetic model; Batchwise; Correlation analysis; Solid waste; pH; Aqueous solution
• ISSN: 0304-3894; 1873-3336
• DOI: 10.1016/j.jhazmat.2008.05.045

This study aimed at investigating the feasibility of using jackfruit peel (JFP), a solid waste, abundantly available in Malaysia, for the adsorption of methylene blue, a cationic dye. Batch adsorption studies were conducted to evaluate the effects of contact time, initial concentration (35–400 mg/L), pH (2–11), and adsorbent dose (0.05–1.20 g) on the removal of dye at temperature of 30 °C. The experimental data were analyzed by the four different types of linearized Langmuir isotherm, the Freundlich isotherm and the Temkin isotherm. The experimental data fitted well with the type 2 Langmuir model with a maximum adsorption capacity of 285.713 mg/g. Pseudo-first and pseudo-second-order kinetics models were tested with the experimental data, and pseudo-second-order kinetics was the best for the adsorption of MB by JFP with coefficients of correlation R 2 ≥ 0.9967 for all initial MB concentrations studied. The results demonstrated that the JFP is very effective for the adsorption of methylene blue (MB) from aqueous solutions.