文献类型：期刊文献

英文题名：Synthesis of stable mesoporous Zr-MOFs using pyrazine-containing ligand for efficient capture of Pb(II) in wastewater

作者：Liu, Lixiang[1,2];Wu, Laidi[1,2];Chen, Yue[1,2];Ma, Yongfei[1,2];Lin, Li[1,2];Li, Shuo[1,2];Yang, Xiujuan[1,2];Chen, Hui[1,3];Duan, Guojian[1,2]

第一作者：Liu, Lixiang

通信作者：Chen, H[1];Duan, GJ[1]

机构：[1]Gansu Univ Chinese Med, Coll Pharm, Lanzhou 730000, Gansu, Peoples R China;[2]Gansu Univ Chinese Med, Coll Pharm, Northwest Collaborat Innovat Ctr Tradit Chinese Me, Gansu Prov & MOE PRC, Lanzhou 730000, Peoples R China;[3]Gansu Univ Chinese Med, Expt & Training Teaching Ctr, Lanzhou 730000, Gansu, Peoples R China

第一机构：甘肃中医药大学药学院（西北中藏药协同创新中心办公室）

通信机构：[1]corresponding author), Gansu Univ Chinese Med, Coll Pharm, Lanzhou 730000, Gansu, Peoples R China.|[1073501e14fb35863569f]甘肃中医药大学药学院（西北中藏药协同创新中心办公室）;[10735]甘肃中医药大学;

年份：2024

卷号：12

期号：3

外文期刊名：JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

收录：;EI(收录号：20241315799727);Scopus(收录号：2-s2.0-85188424686);WOS:【SCI-EXPANDED(收录号:WOS:001219259200001)】；

基金：This work was supported by the Gansu Province traditional Chinese medicine raw material quality construction project (grant number 998/9983999916) and Gansu Provincial Administration of Traditional Chi-nese Medicine Project (grant number GZKP-2022-37) .

语种：英文

外文关键词：Zr-PzDC; Adsorption; Lead ions; Wastewater; Reusability; Dynamic adsorption

摘要：By optimizing the reaction conditions, a zirconium-based adsorbent Zr-PzDC with pyrazine-2,5-dicarboxylic acid as the ligand was synthesized for the treatment of lead ions in an aqueous solution. SEM, EDS-Mapping, XRS and FT-IR characterization confirmed the synthesis of Zr-PzDC. Meanwhile, BET results show that Zr-PzDC is a typical mesoporous material. The analysis of the binding process of Zr-PzDC with Pb(II) in water shows that the adsorption kinetics conform to the pseudo-second-order model; The adsorption isotherm data fits well with the Langmuir model, and the maximum adsorption capacity of Pb(II) is 298.39 mg/g; The thermodynamic parameters show that the adsorption of Pb(II) in water is a spontaneous endothermic process. Combined with the XPS spectral results, physical adsorption is the main binding mode, and single-layer chemisorption is the limiting step in the adsorption process. The results of both static and dynamic column adsorption experiments show that ZrPzDC can treat lead ions quickly and efficiently, and has excellent reusable performance, which makes Zr-PzDC have good application potential in treating lead-containing wastewater of the battery production process.