Next Article in Journal
Origin of Minerals and Elements in the Late Permian Coal Seams of the Shiping Mine, Sichuan, Southwestern China
Previous Article in Journal
Assessment of Excavation Broken Zone around Gateways under Various Geological Conditions: A Case Study in Sichuan Province, China
Previous Article in Special Issue
Carbon Dioxide Sorption Isotherm Study on Pristine and Acid-Treated Olivine and Its Application in the Vacuum Swing Adsorption Process
Article Menu

Export Article

Open AccessArticle
Minerals 2016, 6(3), 73; https://doi.org/10.3390/min6030073

N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México

1
Zeolites Research Department and Postgraduate in Sustainable Management of Agroecosystems, Autonomous University of Puebla, Puebla City 72570, Mexico
2
Department of Chemistry, Autonomous Metropolitan University, Iztapalapa, Ciudad de México 09340, Mexico
3
Faculty of Chemistry, Autonomous University of Puebla, Puebla City 72570, Mexico
4
University Center of Linking and Technology Transfer, Autonomous University of Puebla, Puebla City 72570, Mexico
5
Soils Microbiology Laboratory, Autonomous University of Puebla, Puebla City 72570, Mexico
*
Author to whom correspondence should be addressed.
Academic Editor: Tuncel M. Yegulalp
Received: 8 March 2016 / Revised: 23 May 2016 / Accepted: 17 June 2016 / Published: 14 July 2016
(This article belongs to the Special Issue CO2 Sequestration by Mineral Carbonation: Challenges and Advances)
Full-Text   |   PDF [1659 KB, uploaded 14 July 2016]   |  

Abstract

Carbon dioxide (CO2) is considered one of the most important greenhouse gases in the study of climate change. CO2 adsorption was studied using the gas chromatography technique, while the Freundlich and Langmuir adsorption models were employed for processing isotherm data in the temperature range of 473–573 K. The isosteric heat of adsorption was calculated from the Clausius–Clapeyron equation. Moreover, the thermodynamic properties ΔG, ΔU, and ΔS were evaluated from the adsorption isotherms of Langmuir using the Van’t Hoff Equation. The four soil samples were recollected from San Juan Amecac, Puebla, Mexico, and their morphologies were investigated through X-ray diffraction (XRD) and N2 adsorption at 77 K. The SJA4 soil has a crystalline Kaolinite phase, which is one of its non-metallic raw materials, and N2 isotherms allowed for the determination of pore size distributions and specific surface areas of soil samples. The Barrett–Joyner–Halenda (BJH) distribution of pore diameters was bimodal with peaks at 1.04 and 3.7 nm, respectively. CO2 adsorption showed that the SJA1 soil afforded a higher amount of adsorbed CO2 in the temperature range from 453 to 573 K followed by SJA4 and finally SJA2, classifying this process as exothermic physisorption. View Full-Text
Keywords: adsorption; soils; CO2; N2; kaolinite; isosteric heat; Freundlich; Brunauer-Emmett-Teller (BET) approach adsorption; soils; CO2; N2; kaolinite; isosteric heat; Freundlich; Brunauer-Emmett-Teller (BET) approach
Figures

Graphical abstract

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).
SciFeed

Share & Cite This Article

MDPI and ACS Style

Quiroz-Estrada, K.; Hernández-Espinosa, M.Á.; Rojas, F.; Portillo, R.; Rubio, E.; López, L. N2 and CO2 Adsorption by Soils with High Kaolinite Content from San Juan Amecac, Puebla, México. Minerals 2016, 6, 73.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Minerals EISSN 2075-163X Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top