A regenerable ion-imprinted magnetic biocomposite for selective adsorption and detection of Pb2+ in aqueous solution.
A regenerable ion-imprinted magnetic biocomposite for selective adsorption and detection of Pb2+ in aqueous solution.
复制标题
一种可再生离子印迹磁性生物复合材料，用于选择性吸附和检测水溶液中的 Pb2。
DOI：
10.1016/j.jhazmat.2020.124410
复制
发表时间：
2020-10
影响因子：
13.6
通讯作者：
Pan Hongzhi
中科院分区：
文献类型：
--
作者：
Wu Pian;He Yayuan;Lu Siyu;Wang Shanlin;Yi Jiecan;He Yafei;Zhang Jingwen;Xiang Shan;Ding Ping;Kai Tianhan;Pan Hongzhi
A regenerable ion-imprinted magnetic biocomposite (IIMB) was successfully synthesized for simultaneous removal of Pb2+usingSerratia marcescensand carboxymethyl chitosan (CMC) as functional carriers, Pb2+was utilized as the imprinted ion, while Fe3O4served as the magnetic component. The structure and properties of IIMB were characterized by various techniques. The adsorption kinetics, isotherms and thermodynamics were applied to interpret the Pb2+adsorption process on IIMB. The results showed the IIMB possessed prominent uptake ability toward Pb2+. The pseudo-second-order kinetic (R2= 0.9989) and Langmuir models (R2= 0.9555) fitted the data well. Adsorption thermodynamics revealed that the adsorption was a spontaneous endothermic reaction. The possible adsorption mechanisms involved physical adsorption, electrostatic attraction and complexing. Moreover, because Pb2+can be specifically and strongly adsorbed on IIMB, a simple method for detection of Pb2+was established by coupling IIMB with flame atomic absorption spectrometry (IIMB-FAAS). The developed IIMB-FAAS assay can sensitively detect Pb2+with a linear range from 5.0 to 500.0 μg/L. The detection limit (LOD) of 0.95 μg/L as well as a quantification limit (LOQ) of 3.20 μg/L were obtained. This work proved that the IIMB could selective and efficient adsorb Pb2+, which provided some insights into wastewater treatment, water quality inspection and environmental remediation.
登录
查看更多内容
影响因子：
4.8
作者：
A. Labidi;A. Salaberria;J. Labidi;M. Abderrabba
通讯作者：
A. Labidi;A. Salaberria;J. Labidi;M. Abderrabba
使用Sphingopyxis sp. 高效且可持续地生物降解微囊藻毒素-LR。
DOI：
10.1016/j.colsurfb.2019.110633
发表时间：
2020
期刊：
Colloids and Surfaces B: Biointerfaces
影响因子：
--
作者：
Wu Pian;Li Guiyin;He Yafei;Luo Dan;Li Lei;Guo Jian;Ding Ping;Yang Fei
通讯作者：
Yang Fei
多孔海藻酸钙膜去除水中亚甲基蓝的过滤和吸附性能
影响因子：
15.1
作者：
Li, Qi;Li, Yanhui;Xia, Yanzhi
通讯作者：
Xia, Yanzhi
影响因子：
15.1
作者：
Hehua Zeng;Lan Wang;Dan Zhang;Pengqiang Yan;Jingjing Nie;V. Sharma;Chuanyi Wang
通讯作者：
Hehua Zeng;Lan Wang;Dan Zhang;Pengqiang Yan;Jingjing Nie;V. Sharma;Chuanyi Wang
使用三明治状氧化石墨烯复合压印材料快速有效地去除铜
影响因子：
15.1
作者：
Kong, Delong;Qiao, Ning;Ren, Zhongqi
通讯作者：
Ren, Zhongqi