Zobrazit minimální záznam
dc.contributor.author |
Bulánek, Roman
|
cze |
dc.contributor.author |
Hrdina, Radim
|
cze |
dc.contributor.author |
Hassan, Assad F.
|
cze |
dc.date.accessioned |
2020-03-19T12:46:35Z |
|
dc.date.available |
2020-03-19T12:46:35Z |
|
dc.date.issued |
2019 |
eng |
dc.identifier.issn |
2213-3437 |
eng |
dc.identifier.uri |
https://hdl.handle.net/10195/74871 |
|
dc.description.abstract |
Nanomagnetite (Ng), polyvinylpyrrolidone modified nanomagnetite (NgM), and polyvinylpyrrolidone/nanomagnetite composite (NgC) were prepared in presence of nitrogen gas. Thermogravimetric analysis showed that NgC contains higher polyvinylpyrrolidone/nanomagnetite (PVP/Ng) ratio. Assessments of nitrogen adsorption, SEM, TEM, and EDX data indicate that specific surface area of investigated materials is in order Ng approximate to approximate to NgM > NgC, materials form nano spheres with particle size around 9.0 nm according to TEM and Debye-Scherrer diffraction formula and content of magnetite in the prepared catalysts were 98.04, 76.88, and 56.95% in case of Ng, NgM and NgC, respectively. XRD confirms the cubic structure of nanocatalysts. FTIR spectra confirm the presence of stretching vibration of Fe-O bonds and magnetite fingerprint of skeletal vibrations. Degradation of nicotine by Fenton process catalyzed by nanomagnetite-based heterogeneous catalysts was studied under different conditions. Optimal reaction conditions for nicotine decomposition were found to be: equilibrium degradation time = 100 min, nanocatalyst dosage = 2.5 g L-1, pH = 2.5, hydrogen peroxide concentration = 14 mmol L-1, initial nicotine concentration = 100 mg L-1 and degradation temperature = 35 degrees C. Kinetic studies showed that the Fenton degradation of nicotine in the presence of polyvinylpyrrolidone modified nanomagnetite catalysts follows the pseudo-first order kinetic model. Catalyst reusability proved that NgM is efficient, reusable nanocatalyst materials for degradation of nicotine by Fenton process compared with the other two catalysts. |
eng |
dc.format |
102988-1-102988-9 |
eng |
dc.language.iso |
eng |
eng |
dc.publisher |
ELSEVIER SCI LTD |
eng |
dc.relation.ispartof |
Journal of Environmental Chemical Engineering, volume 7, issue: 2 |
eng |
dc.rights |
Text článku ve verzi postprint bude přístupný od 25.02.2021. |
eng |
dc.rights.uri |
https://creativecommons.org/licenses/by-nc-nd/4.0/ |
|
dc.subject |
Nanomagnetite |
eng |
dc.subject |
Composite |
eng |
dc.subject |
Characterization |
eng |
dc.subject |
Nicotine |
eng |
dc.subject |
Fenton |
eng |
dc.subject |
nanomagnetit |
cze |
dc.subject |
kompozit |
cze |
dc.subject |
charakterizace |
cze |
dc.subject |
nikotin |
cze |
dc.subject |
Fenton |
cze |
dc.title |
Preparation of polyvinylpyrrolidone modified nanomagnetite for degradation of nicotine by heterogeneous Fenton process |
eng |
dc.title.alternative |
Příprava polyvinylpyrrolidonu modifikovaného nanomagnetitem pro degradaci nikotinu pomocí heterogenního Fenton procesu |
cze |
dc.type |
article |
eng |
dc.description.abstract-translated |
Nanomagnetit, polyvinylpyrrolidon modifikovaný nanomagnetitem a polyvinylpyrrolidon/nanomagnetit kompozit byly připraveny v přítomnosti dusíku. Připravené materiály byly testovány metodami TG, N2 adsorpcí, SEM, TEM a EDX. |
cze |
dc.peerreviewed |
yes |
eng |
dc.publicationstatus |
This is a postprint of an article published in Journal of Environmental Chemical Engineering. The final authenticated version is available online at: https://doi.org/10.1016/j.jece.2019.102988 or https://www.sciencedirect.com/science/article/pii/S2213343719301113?via%3Dihub |
eng |
dc.identifier.doi |
10.1016/j.jece.2019.102988 |
eng |
dc.relation.publisherversion |
https://www.sciencedirect.com/science/article/pii/S2213343719301113?via%3Dihub |
eng |
dc.identifier.wos |
000463767100082 |
eng |
dc.identifier.scopus |
2-s2.0-85062687176 |
|
dc.identifier.obd |
39882816 |
eng |
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Zobrazit minimální záznam
Kromě případů, kde je uvedeno jinak, licence tohoto záznamu je Text článku ve verzi postprint bude přístupný od 25.02.2021.
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