使用新型磷化席夫碱吸附剂高效吸附罗塞塔独居石精矿中的钍和铈

IF 1.5 3区化学 Q3 CHEMISTRY, ANALYTICAL

Journal of Radioanalytical and Nuclear Chemistry Pub Date : 2024-08-07 DOI:10.1007/s10967-024-09667-4

Mohamed A. Gado

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引用次数: 0

摘要

(成功合成了吡啶-2,5-二基双（偶氮苯亚甲基）双（苯-5,1,3-三基）四（氢膦酸盐）（PZMB）用于吸附 Th(IV) 和 Ce(IV)，对其吸附参数进行了评估，发现 pH 值为 3.5，吸附时间为 60 分钟，吸附剂量为 0.15 克。吸附动力学研究表明，吸附剂遵循假二阶模型，而等温线研究得出的结论是，吸附过程符合 Langmuir 和 D-R 等温线模型。BZMB 对 Th(IV) 和 Ce(IV) 的最大吸附容量分别为 366.4 毫克/克和 244.53 毫克/克，热力学研究表明 PZMB 的两个吸附过程均为内热、自发和随机吸附。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Efficient adsorption of thorium and cerium from Rosetta monazite concentrate using a novel phosphorylated Schiff-base adsorbent

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Efficient adsorption of thorium and cerium from Rosetta monazite concentrate using a novel phosphorylated Schiff-base adsorbent

(Pyridine-2,5-diylbis(azaneylylidene)) bis-(methaneylylidene)) bis(benzene-5,1,3-triyl) tetrakis (hydrogen phosphonate) (PZMB) was successfully synthesized for Th(IV) and Ce(IV) adsorption, the adsorption parameters evaluated and found to be pH 3.5, time 60 min, dose 0.15 g. Adsorption kinetics, isotherm, and thermodynamics studies. Adsorption kinetics studies show that adsorbent follow pseudo-second-order model while isotherm studies conclude that adsorption processes fitted Langmuir and D-R isotherm model. The maximum adsorption capacity of BZMB of Th(IV) and Ce(IV) are 366.4 and 244.53 mg/g respectively, Thermodynamic studies indicate both adsorption processes exhibited by the PZMB were endothermic, spontaneous and sorption occurs in a random manner.

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来源期刊

Journal of Radioanalytical and Nuclear Chemistry 化学-分析化学

CiteScore

2.80

自引率

18.80%

发文量

504

审稿时长

2.2 months

期刊介绍： An international periodical publishing original papers, letters, review papers and short communications on nuclear chemistry. The subjects covered include: Nuclear chemistry, Radiochemistry, Radiation chemistry, Radiobiological chemistry, Environmental radiochemistry, Production and control of radioisotopes and labelled compounds, Nuclear power plant chemistry, Nuclear fuel chemistry, Radioanalytical chemistry, Radiation detection and measurement, Nuclear instrumentation and automation, etc.