Photoelectrocatalytic water splitting and dye degradation with fluorine doped tin oxides films

Manel Machreki (Avtor), Takwa Chouki (Avtor), Saim Emin (Avtor)

Povzetek

We report the photoelectrochemical (PEC) water splitting with flourine doped tin oxide (FTO) films. This is the first study where efficient water splitting is achieved with FTO films under light illumination. Potentiostatic test at 1.7 V vs reversible hydrogen electrode (RHE) show that FTO material is very stable for water oxidation without occurence of a noticable current drop over a span of 6 hours. Mass spectrometry analysis of evolved gasses confermed the formation of oxygen and hydrogen in the two half cells (separated by a membrane). Moreover, it was demonstrated that the water splitting reaction involve formation of hydroxyl radicals (•OH) which are known oxidants for organics. We applied these FTO films for degradation of a model pollutant rhodamine B dye (1×10−5 mol/l). PEC assisted degradation of rhodamine B took about 30 min to achieve complete degradation of 60 ml model dye solution.

Ključne besede

FTO;thin films;dye degradation;

Podatki

Jezik:	Angleški jezik
Leto izida:	2019
Tipologija:	1.12 - Objavljeni povzetek znanstvenega prispevka na konferenci
Organizacija:	UNG - Univerza v Novi Gorici
UDK:	54
COBISS:	63160067
Št. ogledov:	1281
Št. prenosov:	0
Ocena:	0 (0 glasov)
Metapodatki:

Ostali podatki

URN:	URN:SI:UNG
Strani:	Str. 88
ID:	12891422