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Volume 8
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Article

The Adsorption Kinetic Parameters of Co2+ Ions by α-C2SH

by
Domante Niuniavaite
,
Kestutis Baltakys
* and
Tadas Dambrauskas
Department of Silicate Technology, Kaunas University of Technology, Radvilenu road 19, LT-50270 Kaunas, Lithuania
*
Author to whom correspondence should be addressed.
Buildings 2018, 8(1), 10; https://doi.org/10.3390/buildings8010010
Submission received: 24 November 2017 / Revised: 10 January 2018 / Accepted: 12 January 2018 / Published: 15 January 2018
(This article belongs to the Special Issue Sustainable Building Materials)
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Abstract

In this work, the kinetic parameters of Co2+ ion adsorption by α-C2SH were determined. α-C2SH was synthesized under hydrothermal conditions at 175 °C, when the duration of isothermal curing was 24 h and the molar ratio of primary mixture was CaO/SiO2 = 1.5. This research allows us to state that the adsorption reactions proceed according to the chemisorption process. In order to determine adsorption kinetic parameters, kinetics models have been developed and fitted for these reactions. Additionally, it was determined that adsorbed Co2+ ions have a significant influence on the stability of α-C2SH. These results were confirmed by XRD, STA, and atomic absorption spectroscopy methods.
Keywords: calcium silicate hydrate; heavy metals ions; adsorption; kinetics calcium silicate hydrate; heavy metals ions; adsorption; kinetics

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MDPI and ACS Style

Niuniavaite, D.; Baltakys, K.; Dambrauskas, T. The Adsorption Kinetic Parameters of Co2+ Ions by α-C2SH. Buildings 2018, 8, 10. https://doi.org/10.3390/buildings8010010

AMA Style

Niuniavaite D, Baltakys K, Dambrauskas T. The Adsorption Kinetic Parameters of Co2+ Ions by α-C2SH. Buildings. 2018; 8(1):10. https://doi.org/10.3390/buildings8010010

Chicago/Turabian Style

Niuniavaite, Domante, Kestutis Baltakys, and Tadas Dambrauskas. 2018. "The Adsorption Kinetic Parameters of Co2+ Ions by α-C2SH" Buildings 8, no. 1: 10. https://doi.org/10.3390/buildings8010010

APA Style

Niuniavaite, D., Baltakys, K., & Dambrauskas, T. (2018). The Adsorption Kinetic Parameters of Co2+ Ions by α-C2SH. Buildings, 8(1), 10. https://doi.org/10.3390/buildings8010010

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