当前位置: X-MOL 学术J. Environ. Chem. Eng. › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Effective removal of ruthenium(III) ions from wastewater by xanthate-modified cross-linked chitosan
Journal of Environmental Chemical Engineering ( IF 7.7 ) Pub Date : 2021-01-09 , DOI: 10.1016/j.jece.2020.104818
Shuang Liu , Ye Li , Jiashuai Yan , Yuzhi Zhou , Cong Liu , Yangyang Zuo , Dongxue Liu

Xanthate-modified cross-linked chitosan (chitosan-SH) was synthesized by hydrothermal method. The adsorption mechanism and capacity of removing ruthenium [Ru(Ⅲ)] from aqueous solutions with chitosan-SH as an adsorbent was investigated. The characterization results indicated that carbon disulfide (CS2) was successfully loaded into cross-linked chitosan. Structural characterization of the samples was performed by Fourier transform infrared (FTIR), X-ray photoelectron spectrometer (XPS), scanning electron microscope (SEM), specific surface area and porosity analysis (BET) analysis methods. The results of kinetics data suggested that the ruthenium ion adsorption process by chitosan-SH could be fast to reach equilibrium within 30 min. Additionally, the removal percentage of uranium was obtained 94.7% at pH 7.0. Several parameters affecting adsorption capacity, including pH, contact time, initial Ru(Ⅲ) concentration and solution volume, and adsorbent concentration, were also investigated. Overall, chitosan-SH could be applied as a superior adsorbent for Ru(Ⅲ) in wastewater.



中文翻译:

黄药改性交联壳聚糖有效去除废水中的钌(III)离子

通过水热法合成黄药酸酯改性的交联壳聚糖(chitosan-SH)。研究了壳聚糖-SH作为吸附剂从水溶液中去除钌[Ru(Ⅲ)]的吸附机理和能力。表征结果表明,二硫化碳(CS 2)已成功加载到交联的壳聚糖中。样品的结构表征通过傅里叶变换红外(FTIR),X射线光电子能谱仪(XPS),扫描电子显微镜(SEM),比表面积和孔隙率分析(BET)分析方法进行。动力学数据的结果表明,壳聚糖-SH吸附钌离子的过程可以在30分钟内快速达到平衡。另外,在pH 7.0下获得了94.7%的铀去除率。研究了影响吸附容量的几个参数,包括pH值,接触时间,初始Ru(Ⅲ)浓度和溶液体积以及吸附剂浓度。总体而言,壳聚糖-SH可作为废水中Ru(Ⅲ)的优良吸附剂。

更新日期:2021-01-16
down
wechat
bug