Hameed B H
School of Chemical Engineering, Universiti Sains Malaysia, 14300 Nibong Tebal, Penang, Malaysia.
J Hazard Mater. 2009 Feb 15;162(1):344-50. doi: 10.1016/j.jhazmat.2008.05.045. Epub 2008 May 16.
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 (35-400mg/L), pH (2-11), and adsorbent dose (0.05-1.20g) on the removal of dye at temperature of 30 degrees 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 285.713mg/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)> or =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.
本研究旨在探讨利用马来西亚大量可得的固体废弃物菠萝蜜果皮（JFP）吸附阳离子染料亚甲基蓝的可行性。进行了批次吸附研究，以评估接触时间、初始浓度（35 - 400mg/L）、pH值（2 - 11）和吸附剂剂量（0.05 - 1.20g）在30℃温度下对染料去除的影响。实验数据通过四种不同类型的线性化朗缪尔等温线、弗伦德利希等温线和坦金等温线进行分析。实验数据与2型朗缪尔模型拟合良好，最大吸附容量为285.713mg/g。用伪一级和伪二级动力学模型对实验数据进行测试，对于所有研究的初始亚甲基蓝浓度，伪二级动力学对JFP吸附亚甲基蓝效果最佳，相关系数R²≥0.9967。结果表明，JFP对从水溶液中吸附亚甲基蓝（MB）非常有效。
