Adsorption of Lead Ions from Aqueous Solutions Using Gamma Irradiated Minerals
Joint Authors
Barrera-Díaz, C. E.
Cruz-Olivares, Julián
Pérez-Alonso, César
Chaparro-Mercado, María del Carmen
Ureña Nuñez, Fernando
Martínez Barrera, Gonzalo
Source
Issue
Vol. 2016, Issue 2016 (31 Dec. 2016), pp.1-7, 7 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2016-11-17
Country of Publication
Egypt
No. of Pages
7
Main Subjects
Abstract EN
For the first time, an irradiated mineral was used as a novel modified adsorbent for lead removal of aqueous solutions.
The effects of gamma radiation doses and temperature on the lead adsorption capacity of an unknown mineral were evaluated.
The results show that, in the chemisorption process, the highest adsorption capacity (9.91 mg/g) and the maximum percentage of lead removal (99.1%) were reached at 40°C when using an irradiated mineral at 150 kGy.
The improvement on the lead adsorption speed was the most important feature of the irradiated mineral.
The experimental results were successfully correlated with the pseudo second-order kinetic model.
For all results, the average absolute relative deviations (AARD) were less than 13.20%, and the correlation factor (r2) was higher than 0.998.
Moreover, the average values of the thermodynamic parameters (ΔG0=-10612 J/mol, ΔH0=-12360 J/mol, and ΔS0=171 J/mol K) suggest the feasibility of the proposed process, in terms of the endothermic and irreversible chemisorption results; moreover, ion exchange was evaluated through the EDS results.
The X-ray diffraction analysis showed that the unknown irradiated mineral is mainly composed of quartz (SiO2), calcite (CaCO3), and calcium magnesium silicate (Ca0.15Mg0.85) Mg (SiO6).
American Psychological Association (APA)
Cruz-Olivares, Julián& Martínez Barrera, Gonzalo& Pérez-Alonso, César& Barrera-Díaz, C. E.& Chaparro-Mercado, María del Carmen& Ureña Nuñez, Fernando. 2016. Adsorption of Lead Ions from Aqueous Solutions Using Gamma Irradiated Minerals. Journal of Chemistry،Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1107797
Modern Language Association (MLA)
Cruz-Olivares, Julián…[et al.]. Adsorption of Lead Ions from Aqueous Solutions Using Gamma Irradiated Minerals. Journal of Chemistry No. 2016 (2016), pp.1-7.
https://search.emarefa.net/detail/BIM-1107797
American Medical Association (AMA)
Cruz-Olivares, Julián& Martínez Barrera, Gonzalo& Pérez-Alonso, César& Barrera-Díaz, C. E.& Chaparro-Mercado, María del Carmen& Ureña Nuñez, Fernando. Adsorption of Lead Ions from Aqueous Solutions Using Gamma Irradiated Minerals. Journal of Chemistry. 2016. Vol. 2016, no. 2016, pp.1-7.
https://search.emarefa.net/detail/BIM-1107797
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1107797