Adsorption of U(VI) ions using functionalized sago hampas: kinetics, isotherms, and thermodynamics studies

被引：3
作者：
Wee, Boon Siong [1 ]
Maligan, Muhammad Firdaus [1 ]
Chin, Suk Fun [1 ]
Elias, Md Suhaimi [2 ]
Shirai, Naoki [3 ]
机构：
[1] Univ Malaysia Sarawak, Fac Resource Sci & Technol, Kota Samarahan 94300, Sarawak, Malaysia
[2] Agensi Nuklear Malaysia, Kajang 43000, Selangor, Malaysia
[3] Kanagawa Univ, 3-27-1 Rokkakubashi,Kanagawa Ku, Yokohama, Kanagawa 2218686, Japan
来源：
JOURNAL OF RADIOANALYTICAL AND NUCLEAR CHEMISTRY | 2024年 / 333卷 / 06期
关键词：
Uranyl ions; Sago hampas; Adsorption; FTIR; SEM; ICP-OES; AQUEOUS-SOLUTION; URANIUM VI; BIOSORPTION; EQUILIBRIUM;
D O I：
10.1007/s10967-024-09489-4
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
Raw sago hampas (RSH) was grafted with oxygen-containing functional group through a functionalization process to form esterified sago hampas (ESH) for U(VI) adsorption and evaluated using adsorption kinetics, isotherm, and thermodynamics studies. Adsorption kinetics studies show that both adsorbents follow pseudo-second-order model while isotherm studies conclude that both adsorption processes fitted Sips isotherm model. Thermodynamic studies indicate both adsorption processes exhibited by the RSH and ESH were endothermic but spontaneous and non-spontaneous respectively. Strongs acids are tested to be the best desorption agents to release U(VI) from surfaces' of RSH and ESH.
引用
收藏
页码：2679 / 2689
页数：11
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