Removal of Pb(II) ions and malachite green dye from wastewater by activated carbon produced from lemon peel

Química Nova

Hamidian, Hooshang¹  Payame Noor University, Iran¹  Shamspur, Tayebeh¹  Karimi, Mohammad Ali¹  Yazdy, Sayedeh Nasibeh¹  Mohammadi, Sayed Zia¹  Shahid Bahonar University, Kerman, Iran¹ 

关键词: malachite green;    removal of lead ion;    chemical activation;    lemon peel.;   

DOI  :  10.5935/0100-4042.20140129

学科分类：化学（综合）

来源: Sociedade Brasileira de Quimica

【 摘 要 】

In the present study, a high-surface area activated carbon was prepared by chemical activation of lemon peel with H3PO4 as the active agent. Then, the adsorption behavior of Malachite green dye and Pb(II) ions on the produced activated carbon was studied. Batch process was employed for sorption kinetics and equilibrium studies. Experimental data were fitted to various isotherm models. According to the Langmuir model, the maximum adsorption capacities of Malachite green dye and Pb(II) ions were found to be 66.67 and 90.91 mg g-1, respectively, at room temperature. Kinetic studies showed the adsorption process followed a pseudo second-order rate model. The sorption kinetics were controlled by intra-particle diffusion. The results indicated that the produced activated carbon can be economically and effectively used as an adsorbent for the removal of Malachite green dye and Pb(II) ions from wastewaters.

【 授权许可】

Unknown