Magnetite nanoparticles coat around activated gama-alumina
spheres: A case of novel protection of moisture-sensitive
materials against hydration

J 2019

Magnetite nanoparticles coat around activated gama-alumina spheres: A case of novel protection of moisture-sensitive materials against hydration

KUPČÍK, Jaroslav, Petr MIKYSEK, Dana POKORNÁ, Radek FAJGAR, Petra CUŘÍNOVÁ et. al.

Základní údaje

Originální název

Magnetite nanoparticles coat around activated gama-alumina spheres: A case of novel protection of moisture-sensitive materials against hydration

Autoři

KUPČÍK, Jaroslav (203 Česká republika), Petr MIKYSEK (203 Česká republika, domácí), Dana POKORNÁ (203 Česká republika), Radek FAJGAR (203 Česká republika), Petra CUŘÍNOVÁ (203 Česká republika), Karel SOUKUP (203 Česká republika) a Josef POLA (203 Česká republika, garant)

Vydání

Chemical Reports, 2019, 2591-7943

Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10403 Physical chemistry

Stát vydavatele

Singapur

Utajení

není předmětem státního či obchodního tajemství

Odkazy

Full Text

Kód RIV

RIV/00216224:14310/19:00109622

Organizační jednotka

Přírodovědecká fakulta

DOI

http://dx.doi.org/10.25082/CR.2019.02.003

Klíčová slova anglicky

protection against hydration; activated alumina; magnetite nanoparticles; Coulombic interaction; non-polar solvents

Štítky

rivok

Příznaky

Recenzováno

Změněno: 18. 3. 2020 09:43, Mgr. Marie Šípková, DiS.

Anotace

V originále

Protection of various materials against hydration is of continuing interest to chemists and material scientists. We report on stabilization of porous surface of activated gama-alumina spheres (AAS) against hydration by an adhesive coat of nano-magnetite particles. The nano-Fe3O4-coated AAS were prepared in the ultrasound agitated suspension of magnetite nanoparticles in heptane and were characterized by using X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), BET surface area analysis and X-ray photoelectron spectroscopy (XPS). It is deduced that nanoparticle-alumina bonding interaction in non polar organic solvent is enhanced by van der Waals attractive forces and that sonication induces changes in alumina morphology only in regions of contact between alumina and magnetite nanoparticles. The coated AAS submerged in still water avoid hydration and remain permeable by small gaseous (N2) molecules, while those soaked in moving water lose part of their coat and undergo hydration. The pristine and the coated AAS were briefly compared for their ability to degrade model antibiotics by using LC-MS analysis. It is confirmed that the degradation of trimethoprim is more efficient on the coated AAS. Our results are challenging for further research of Coulombic interactions between nano-particles and appropriate solid supports.

Citovat

KUPČÍK, Jaroslav, Petr MIKYSEK, Dana POKORNÁ, Radek FAJGAR, Petra CUŘÍNOVÁ, Karel SOUKUP a Josef POLA. Magnetite nanoparticles coat around activated gama-alumina spheres: A case of novel protection of moisture-sensitive materials against hydration. Chemical Reports. 2019, roč. 1, č. 2, s. 67-76. ISSN 2591-7943. Dostupné z: https://dx.doi.org/10.25082/CR.2019.02.003.

@article{1529518,
   author = {Kupčík, Jaroslav and Mikysek, Petr and Pokorná, Dana and Fajgar, Radek and Cuřínová, Petra and Soukup, Karel and Pola, Josef},
   article_number = {2},
   doi = {http://dx.doi.org/10.25082/CR.2019.02.003},
   keywords = {protection against hydration; activated alumina; magnetite nanoparticles; Coulombic interaction; non-polar solvents},
   language = {eng},
   issn = {2591-7943},
   journal = {Chemical Reports},
   title = {Magnetite nanoparticles coat around activated gama-alumina spheres: A case of novel protection of moisture-sensitive materials against hydration},
   url = {https://www.syncsci.com/journal/index.php/CR/article/view/271/193},
   volume = {1},
   year = {2019}
}

TY  - JOUR
ID  - 1529518
AU  - Kupčík, Jaroslav - Mikysek, Petr - Pokorná, Dana - Fajgar, Radek - Cuřínová, Petra - Soukup, Karel - Pola, Josef
PY  - 2019
TI  - Magnetite nanoparticles coat around activated gama-alumina spheres: A case of novel protection of moisture-sensitive materials against hydration
JF  - Chemical Reports
VL  - 1
IS  - 2
SP  - 67-76
EP  - 67-76
SN  - 25917943
KW  - protection against hydration
KW  - activated alumina
KW  - magnetite nanoparticles
KW  - Coulombic interaction
KW  - non-polar solvents
UR  - https://www.syncsci.com/journal/index.php/CR/article/view/271/193
L2  - https://www.syncsci.com/journal/index.php/CR/article/view/271/193
N2  - Protection of various materials against hydration is of continuing interest to chemists and material scientists. We report on stabilization of porous surface of activated gama-alumina spheres (AAS) against hydration by an adhesive coat of nano-magnetite particles. The nano-Fe3O4-coated AAS were prepared in the ultrasound agitated suspension of magnetite nanoparticles in heptane and were characterized by using X-ray diffraction, scanning electron microscopy (SEM), transmission electron microscopy (TEM), BET surface area analysis and X-ray photoelectron spectroscopy (XPS). It is deduced that nanoparticle-alumina bonding interaction in non polar organic solvent is enhanced by van der Waals attractive forces and that sonication induces changes in alumina morphology only in regions of contact between alumina and magnetite nanoparticles. The coated AAS submerged in still water avoid hydration and remain permeable by small gaseous (N2) molecules, while those soaked in moving water lose part of their coat and undergo hydration. The pristine and the coated AAS were briefly compared for their ability to degrade model antibiotics by using LC-MS analysis. It is confirmed that the degradation of trimethoprim is more efficient on the coated AAS. Our results are challenging for further research of Coulombic interactions between nano-particles and appropriate solid supports.
ER  -

KUPČÍK, Jaroslav, Petr MIKYSEK, Dana POKORNÁ, Radek FAJGAR, Petra CUŘÍNOVÁ, Karel SOUKUP a Josef POLA. Magnetite nanoparticles coat around activated gama-alumina spheres: A case of novel protection of moisture-sensitive materials against hydration. \textit{Chemical Reports}. 2019, roč.~1, č.~2, s.~67-76. ISSN~2591-7943. Dostupné z: https://dx.doi.org/10.25082/CR.2019.02.003.

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