Efficient chromium (VI) removal with zirconium oxide-carbon nanotubes via filtration-steam hydrolysis
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F62243136%3A_____%2F24%3AN0000033" target="_blank" >RIV/62243136:_____/24:N0000033 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/abs/pii/S0263876224001618" target="_blank" >https://www.sciencedirect.com/science/article/abs/pii/S0263876224001618</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.cherd.2024.03.017" target="_blank" >10.1016/j.cherd.2024.03.017</a>
Alternative languages
Result language
angličtina
Original language name
Efficient chromium (VI) removal with zirconium oxide-carbon nanotubes via filtration-steam hydrolysis
Original language description
In this study, carbon nanotubes (CNTs) were modified with hydrated zirconium oxide (ZrO(OH)2) nanoparticles using a filtration-steam hydrolysis method, and were used to remove Cr(VI) ions. The prepared ZrO(OH)2/CNT nanocomposites (NZC) were characterized through SEM, XRD, TEM, and FTIR. The pseudo-second-order and Langmuir models could better describe Cr(VI) adsorption on NZC nanocomposite. The adsorption reached equilibrium within 6 h, exhibiting a monolayer adsorption capacity of 97.39 mg/g as determined by Langmuir fitting. Moreover, NZC exhibited excellent resistance to interference from co-existing anions, including NO3- and Cl-. Increasing the solution pH inhibited the Cr(VI) adsorption on the NZC nanocomposite. The presence of coexisting anions in the solution was found to impede the adsorption of Cr(VI) ions onto NZC, with phosphate ions (PO43-) exhibiting the most pronounced inhibitory effect. According to the XPS analysis and pH effect experiments, the abundant hydroxyl groups of NZC played a crucial role in Cr(VI) adsorption. Compared to most Zrbased adsorbents, the NZC stands out as a highly effective adsorbent, demonstrating superior adsorption amount of Cr(VI). This NZC material holds great promise for effectively removing Cr(VI) from industrial wastewater, highlighting its potential application in the field.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
20400 - Chemical engineering
Result continuities
Project
—
Continuities
V - Vyzkumna aktivita podporovana z jinych verejnych zdroju
Others
Publication year
2024
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Chemical Engineering Research and Design
ISSN
02638762
e-ISSN
1744-3563
Volume of the periodical
2024
Issue of the periodical within the volume
204
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
9
Pages from-to
664–672
UT code for WoS article
001218174000001
EID of the result in the Scopus database
2-s2.0-85189528102