Enhancement of stability and reactivity of nanosized zero-valent iron with polyhydroxybutyrate

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61388980%3A_____%2F17%3A00475770" target="_blank" >RIV/61388980:_____/17:00475770 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.5004/dwt.2017.0704" target="_blank" >http://dx.doi.org/10.5004/dwt.2017.0704</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.5004/dwt.2017.0704" target="_blank" >10.5004/dwt.2017.0704</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Enhancement of stability and reactivity of nanosized zero-valent iron with polyhydroxybutyrate

Popis výsledku v původním jazyce

Polyhydroxybutyrate (PHB) is a bacterial storage polyester, which is produced directly in the activated sludge process. In the present study, PHB was tested as a scaffold material for stabilization of nanosized zero-valent iron (nZVI). The morphology of the resulting composite was assessed using transmission electron microscopy (TEM) and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDX) analysis. In addition, the surface chemistry and particle stabilities of nZVI and nZVI/PHB were determined with zeta potential analysis and disc centrifuge measurements, respectively. Moreover, the sedimentation rate of bare nZVI was tested and compared with that for nZVI/PHB. Batch experiments further confirmed that nZVI/PHB particles are not only more stable but also more reactive toward perchloroethene (PCE) and Cr(VI) in comparison with the bare nZVI. These results suggest that PHB can be developed as an inexpensive and environmentally friendly material for the stabilization of nZVI particles.

Název v anglickém jazyce

Enhancement of stability and reactivity of nanosized zero-valent iron with polyhydroxybutyrate

Popis výsledku anglicky

Polyhydroxybutyrate (PHB) is a bacterial storage polyester, which is produced directly in the activated sludge process. In the present study, PHB was tested as a scaffold material for stabilization of nanosized zero-valent iron (nZVI). The morphology of the resulting composite was assessed using transmission electron microscopy (TEM) and scanning electron microscopy (SEM) coupled with energy-dispersive X-ray spectroscopy (EDX) analysis. In addition, the surface chemistry and particle stabilities of nZVI and nZVI/PHB were determined with zeta potential analysis and disc centrifuge measurements, respectively. Moreover, the sedimentation rate of bare nZVI was tested and compared with that for nZVI/PHB. Batch experiments further confirmed that nZVI/PHB particles are not only more stable but also more reactive toward perchloroethene (PCE) and Cr(VI) in comparison with the bare nZVI. These results suggest that PHB can be developed as an inexpensive and environmentally friendly material for the stabilization of nZVI particles.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10402 - Inorganic and nuclear chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2017

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Desalination and Water Treatment

ISSN

1944-3994

e-ISSN

—

Svazek periodika

69

Číslo periodika v rámci svazku

MAR

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

302-307

Kód UT WoS článku

000403570300035

EID výsledku v databázi Scopus

2-s2.0-85020244364