Sulphur particles immobilized on activated polystyrene surface
Identifikátory výsledku
Kód výsledku v IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F44555601%3A13440%2F21%3A43896318" target="_blank" >RIV/44555601:13440/21:43896318 - isvavai.cz</a>
Výsledek na webu
<a href="https://www.confer.cz/nanocon/2020/3735-sulphur-particles-immobilized-on-activated-polystyrene-surface" target="_blank" >https://www.confer.cz/nanocon/2020/3735-sulphur-particles-immobilized-on-activated-polystyrene-surface</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.37904/nanocon.2020.3735" target="_blank" >10.37904/nanocon.2020.3735</a>
Alternativní jazyky
Jazyk výsledku
angličtina
Název v původním jazyce
Sulphur particles immobilized on activated polystyrene surface
Popis výsledku v původním jazyce
Materials with immobilized or entrapped nanoparticles are of considerable interest. Sulphur as one of the abundant elements on earth is cheap and environmentally friendly. In this work, we have studied the surface properties of polystyrene foil and changes of its surface properties after (i) activation by ultraviolet radiation and (ii) subsequent grafting with sulphur particles (SPs). We have also investigated the effect of surface pregrafting with cysteamine on subsequent SPs grafting. SPs have been prepared by an acid catalyzed precipitation of sodium thiosulphate in the presence of sodium dodecyl sulphate as capping agent. The changes in surface properties of modified foils were characterized by contact angle measurement, electrokinetic analysis and X-ray photoelectron spectroscopy (XPS). The contact angle decreased after UV activation due to the formation of oxygen polar groups. The presence of sulphur and sodium on the polystyrene surface, revealed by XPS, showed that SPs were bound to this surface. The surface morphology of samples and grafted SPs size were examined by scanning electron microscopy. The significant changes in SPs agglomeration after grafting on surface were observed.
Název v anglickém jazyce
Sulphur particles immobilized on activated polystyrene surface
Popis výsledku anglicky
Materials with immobilized or entrapped nanoparticles are of considerable interest. Sulphur as one of the abundant elements on earth is cheap and environmentally friendly. In this work, we have studied the surface properties of polystyrene foil and changes of its surface properties after (i) activation by ultraviolet radiation and (ii) subsequent grafting with sulphur particles (SPs). We have also investigated the effect of surface pregrafting with cysteamine on subsequent SPs grafting. SPs have been prepared by an acid catalyzed precipitation of sodium thiosulphate in the presence of sodium dodecyl sulphate as capping agent. The changes in surface properties of modified foils were characterized by contact angle measurement, electrokinetic analysis and X-ray photoelectron spectroscopy (XPS). The contact angle decreased after UV activation due to the formation of oxygen polar groups. The presence of sulphur and sodium on the polystyrene surface, revealed by XPS, showed that SPs were bound to this surface. The surface morphology of samples and grafted SPs size were examined by scanning electron microscopy. The significant changes in SPs agglomeration after grafting on surface were observed.
Klasifikace
Druh
D - Stať ve sborníku
CEP obor
—
OECD FORD obor
20501 - Materials engineering
Návaznosti výsledku
Projekt
<a href="/cs/project/LM2018124" target="_blank" >LM2018124: Nanomateriály a nanotechnologie pro ochranu životního prostředí a udržitelnou budoucnost</a><br>
Návaznosti
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach
Ostatní
Rok uplatnění
2021
Kód důvěrnosti údajů
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Údaje specifické pro druh výsledku
Název statě ve sborníku
12TH INTERNATIONAL CONFERENCE ON NANOMATERIALS - RESEARCH & APPLICATION (NANOCON 2020)
ISBN
978-80-87294-98-7
ISSN
—
e-ISSN
—
Počet stran výsledku
6
Strana od-do
446-451
Název nakladatele
TANGER LTDKELTICKOVA 62, SLEZSKA, OSTRAVA 710 00, CZECH REPUBLIC
Místo vydání
Ostrava
Místo konání akce
Brno
Datum konání akce
21. 10. 2020
Typ akce podle státní příslušnosti
WRD - Celosvětová akce
Kód UT WoS článku
000664505500076