PAVELKOVÁ, Alena, Vendula CENCEROVÁ, Josef ZEMAN, Vojtech ANTOS a Jaroslav NOSEK. Reduction of chlorinated hydrocarbons using nano zero-valent iron supported with an electric field. Characterization of electrochemical processes and thermodynamic stability. Chemosphere. Oxford: Pergamon-Elsevier Science Ltd, 2021, roč. 265, February 2021, s. 128764-128772. ISSN 0045-6535. Dostupné z: https://dx.doi.org/10.1016/j.chemosphere.2020.128764.
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Základní údaje
Originální název Reduction of chlorinated hydrocarbons using nano zero-valent iron supported with an electric field. Characterization of electrochemical processes and thermodynamic stability
Autoři PAVELKOVÁ, Alena, Vendula CENCEROVÁ, Josef ZEMAN (203 Česká republika, garant, domácí), Vojtech ANTOS a Jaroslav NOSEK.
Vydání Chemosphere, Oxford, Pergamon-Elsevier Science Ltd, 2021, 0045-6535.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10511 Environmental sciences
Stát vydavatele Velká Británie a Severní Irsko
Utajení není předmětem státního či obchodního tajemství
WWW URL
Impakt faktor Impact factor: 8.943
Kód RIV RIV/00216224:14310/21:00120878
Organizační jednotka Přírodovědecká fakulta
Doi http://dx.doi.org/10.1016/j.chemosphere.2020.128764
UT WoS 000603465000009
Klíčová slova anglicky Electro-reductive dechlorination; Remediation; Zero-valent iron; Chlorinated hydrocarbons
Štítky rivok
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnila: Mgr. Marie Šípková, DiS., učo 437722. Změněno: 1. 2. 2021 13:27.
Anotace
Electric field assisted remediation using nano iron has shown outstanding results as well as economic benefits during pilot applications (Černíková et al., 2020). This method is based on donating electrons to the zero-valent iron that possess an inherently strong reductive capacity. The reduction of chlorinated hydrocarbons may be characterized by a decrease in contaminants or better still by the evolution of ethene and ethane originating from the reduction of chlorinated ethenes. The evolution of ethene and ethane was observed predominantly in the vicinity of the anode despite reduction processes being expected near the cathode – the electron donor. The reduction near the anode occurred due to dissolved Fe2+ ions, whose presence was suggested by a Pourbaix diagram that combines Eh/pH values to characterize electrochemical stabilities between different species. No products of dechlorination were observed in the area of the cathode due to presence of oxidized Fe in the form of Fe3+ or Fe(OH)4-. The experimental work described in this research provides a deeper view of the processes of electrochemical reductive dechlorination using zero-valent iron and DC. It also showed an increase in the efficiency compared to the method using zero-valent iron only.
VytisknoutZobrazeno: 6. 7. 2024 19:42