Adsorption of ytterbium(III) ions on ivy leaves marc: isotherm, kinetic and thermodynamic studies

被引：0

作者：

Emara, Amr M. ^{[1
]}

Elsharma, Emad M. ^{[1
]}

Abdelmonem, Islam M. ^{[1
]}

机构：

[1] Egyptian Atom Energy Author, Hot Labs Ctr, Nucl Chem Dept, Cairo 13759, Egypt

来源：

JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2025年 / 334卷 / 01期

关键词：

Ivy leaves marc; Yb-169(III) ions; Removal; Adsorption isotherm; Kinetic; Thermodynamic; RARE-EARTH-ELEMENTS; RECOVERY; PARTICLES;

D O I：

10.1007/s10967-024-09778-y

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

This study evaluates the performance of ivy leaves marc (ILM) in adsorbing Yb-169(III) ions. Optimal adsorption occurred at a pH of 4 +/- 0.2, a contact time of 24h, Yb-169(III) concentration of 200mg/L, and a temperature of 298K. Kinetic analysis indicated that the adsorption process followed a pseudo-second-order model. Langmuir isotherm model best described the adsorption process, with a maximum capacity of 34.736mg/g. Thermodynamic analysis revealed that the adsorption process was spontaneous and endothermic. FTIR and SEM analysis of ILM before and after adsorption indicates that the adsorption process is due to the ion exchange mechanism.

引用

页码：227 / 237

页数：11

共 44 条

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