a Laboratory of Applied Chemistry and Environment, Department of Chemistry, Faculty of Sciences , Ibn Zohr University , Agadir , Morocco.
Int J Phytoremediation. 2017 Nov 2;19(11):1047-1052. doi: 10.1080/15226514.2017.1319331.
This study investigated the biosorption of Congo Red (CR) from aqueous solution by Date stones (DS) of Phoenix dactylifera and jujube shells (JS) of Ziziphus lotus. Batch operations were carried out in the liquid phase to observe the effect of various experimental parameters such as contact time, pH, temperature, and initial dye concentration on removal of CR. The characteristics of the DS and JS were also examined by Fourier transform infrared analysis. The biosorption data of CR on DS and JS samples were well fitted with the Langmuir isotherm and pseudo-second kinetics model with a maximum biosorption amount of 45.08 mg g for DS and 59.55 mg g for JS at pH = 4, temperature of 50°C, and an initial concentration of 100-800 mg L after 90 minutes of contact time. The outcomes indicated that DS and JS can be used as a good low-cost alternative for the treatment of effluents containing CR in water.
本研究考察了由 Phoenix dactylifera 的 Date stones（DS）和 Ziziphus lotus 的 jujube shells（JS）从水溶液中吸附刚果红（CR）的情况。在液相中进行了批量操作，以观察接触时间、pH 值、温度和初始染料浓度等各种实验参数对 CR 去除的影响。还通过傅里叶变换红外分析对 DS 和 JS 的特性进行了检查。DS 和 JS 样品对 CR 的吸附数据与 Langmuir 等温线和拟二级动力学模型拟合良好，在 pH = 4、温度为 50°C 和初始浓度为 100-800 mg/L 的条件下，接触时间为 90 分钟时，DS 的最大吸附量为 45.08 mg/g，JS 的最大吸附量为 59.55 mg/g。结果表明，DS 和 JS 可以用作处理水中含有 CR 的废水的一种良好的低成本替代物。
