Mesoporous Ag-functionalized magnetic activated carbon-based agro-waste for efficient removal of Pb(II), Cd(II), and microorganisms from wastewater

被引:4
作者
Ali, Omnia I. [1 ]
Zaki, Eman R. [2 ]
Abdalla, Mohga S. [1 ]
Ahmed, Saber M. [2 ]
机构
[1] Helwan Univ, Fac Sci, Chem Dept, Cairo 11795, Egypt
[2] Agr Res Ctr, Soil Water & Environm Res Inst, Giza, Egypt
关键词
Agro-waste; Activated carbon; Magnetite; Ag nanoparticles; Heavy metals; Removal; Antimicrobial activity; AQUEOUS-SOLUTIONS; SILVER NANOPARTICLES; GREEN SYNTHESIS; PALM SHELL; ADSORPTION; COMPOSITE; KINETICS; METALS; IONS; ANTIBACTERIAL;
D O I
10.1007/s11356-023-26000-w
中图分类号
X [环境科学、安全科学];
学科分类号
08 ; 0830 ;
摘要
Herein, eco-friendly mesoporous magnetic activated carbon-based agro-waste nanosorbents incorporating antimicrobial silver nanoparticles (Mag@AC1-Ag and Mag@AC1-Ag) have been prepared. Various techniques (XRD, SEM/EDX, TEM, FTIR, and BET analysis) were employed to characterize the prepared nanosorbents before being utilized as novel nanosorbents to remove Pb+2 and Cd+2 ions. Mag@AC1-Ag and Mag@AC1-Ag exhibited rapid and excellent uptake of Pb+2 and Cd+2. The pseudo-second-order kinetics and the Langmuir isotherm are more suitable for the explanation of the experimental results. The thermodynamic parameters showed that the Pb+2 and Cd+2 sorption by the nanosorbents was a spontaneous and endothermic reaction. The prepared nanosorbents can be effectively regenerated using HCl and recycled up to the fifth cycle. These nanosorbents' potential uses for eliminating Pb+2 and Cd+2 from real water samples were evaluated. Moreover, the results revealed that both Mag@AC1-Ag and Mag@AC2-Ag exhibited high antimicrobial activity against fecal coliform (gram-negative) and Bacillus subtilis (gram-positive).
引用
收藏
页码:53548 / 53565
页数:18
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