Jaafar Jaaferh, Fawwaz I. Khalili, Ahmad S. Masadeh
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引用次数: 0
Abstract
ABSTRACTThe adsorption of Th(IV) ions by nano-Kaolin and nano-Kaolin/MnFe2O4 composite were studied as a function of pH, sorbent mass, time, and temperature. Kinetic data was fitted to pseudo second-order model, and the maximum value of the adsorption capacity of the monolayer (qm) for nano-Kaolin and nano-Kaolin/MnFe2O4 was at pH 3. The Langmuir, Freundlich, and Dubinin–Radushkevich isotherm equations were fitted to the adsorption data and the proper constants were calculated. From adsorption isotherms at different temperatures, ΔH° (endothermic), ΔG° (favourable), and ΔS° (positive) were calculated.KEYWORDS: Adsorptionmanganese ferritenano-Kaolin (R)nano-Kaolin/MnFe2O4 (RC)U(VI)Th(IV) Disclosure statementNo potential conflict of interest was reported by the author(s).
期刊介绍：
International Journal of Environmental Analytical Chemistry comprises original research on all aspects of analytical work related to environmental problems. This includes analysis of organic, inorganic and radioactive pollutants in air, water, sediments and biota; and determination of harmful substances, including analytical methods for the investigation of chemical or metabolic breakdown patterns in the environment and in biological samples.
The journal also covers the development of new analytical methods or improvement of existing ones useful for the control and investigation of pollutants or trace amounts of naturally occurring active chemicals in all environmental compartments. Development, modification and automation of instruments and techniques with potential in environment sciences are also part of the journal.
Case studies are also considered, particularly for areas where information is scarce or lacking, providing that reported data is significant and representative, either spatially or temporally, and quality assured. Owing to the interdisciplinary nature of this journal, it will also include topics of interest to researchers in the fields of medical science (health sciences), toxicology, forensic sciences, oceanography, food sciences, biological sciences and other fields that, in one way or another, contribute to the knowledge of our environment and have to make use of analytical chemistry for this purpose.
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