Effect of intercalated metal ions on the specific surface area and porosity of dibasic calcium silicate hydrate
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26310%2F22%3APU146946" target="_blank" >RIV/00216305:26310/22:PU146946 - isvavai.cz</a>
Result on the web
<a href="https://reader.elsevier.com/reader/sd/pii/S2468023022005089?token=90B9514DC71F33DFF661320A642C0B1AB50E53194CEAE64A8440A7A43A38BADE8D766F7F06AB3CC4DA697CB22193BAEE&originRegion=eu-west-1&originCreation=20230117125516" target="_blank" >https://reader.elsevier.com/reader/sd/pii/S2468023022005089?token=90B9514DC71F33DFF661320A642C0B1AB50E53194CEAE64A8440A7A43A38BADE8D766F7F06AB3CC4DA697CB22193BAEE&originRegion=eu-west-1&originCreation=20230117125516</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.surfin.2022.102243" target="_blank" >10.1016/j.surfin.2022.102243</a>
Alternative languages
Result language
angličtina
Original language name
Effect of intercalated metal ions on the specific surface area and porosity of dibasic calcium silicate hydrate
Original language description
This work aims to determine the influence of adsorbed Cu2+, Co2+, and Cr3+ ions on the porosity of synthetic calcium silicate hydrate by analyzing nitrogen adsorption and desorption isotherms. The calcium silicate hydrate sample was synthesized under saturated steam pressure at a 175 degrees C temperature when the duration of isothermal curing was 16 h. The intercalation of Cu2+, Co2+, or Cr3+ ions was based on the adsorption experiment at 25 degrees C temperature. It was obtained that after adsorption 100 mg of metal ions were intercalated in 1 g of the sample. The analysis of nitrogen adsorption-desorption isotherms showed, that the nature of intercalated metal ions strongly affects the specific surface area and porosity of adsorbent. It was calculated that the specific surfaces area of the adsorbent increases during adsorption of Cu2+ and Co2+ ions and decreases during adsorption of Cr3+ ions. During calcination, adsorbent and adsorbent with intercalated Co2+ ions became non-porous materials, while samples with intercalated Cr3+ and Cu2+ ions showed a different tendency. The classification of hysteresis loops and calculations by using the corrected Kelvin equation and Orr et al. scheme revealed that the shape of pores depends on the nature of adsorbate. The obtained results were confirmed by analysis of nitrogen adsorption-desorption isotherms as well as SEM and TEM analysis.
Czech name
—
Czech description
—
Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
—
OECD FORD branch
20506 - Coating and films
Result continuities
Project
<a href="/en/project/GA19-16646S" target="_blank" >GA19-16646S: The elimination of the negative impact of zinc in Portland cement by accelerating concrete admixtures</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2022
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
SURFACES AND INTERFACES
ISSN
2468-0230
e-ISSN
—
Volume of the periodical
33
Issue of the periodical within the volume
OCT 2022
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
11
Pages from-to
„“-„“
UT code for WoS article
000841481100002
EID of the result in the Scopus database
2-s2.0-85135385955