Sulfur treated 1D anodic TiO2 nanotube layers for significant photo- and electroactivity enhancement
ČlánekStatus neznámýpeer-reviewedpostprint Náhled není k dispozici
Datum publikování
2019
Vedoucí práce
Oponent
Název časopisu
Název svazku
Vydavatel
Elsevier
Abstrakt
In this work, we show that sulfur treated 1D anodic TiO2 nanotube layers leads to improved photo-electrochemical and catalytic properties compared to the blank nanotube layers. This treatment was performed in the evacuated quartz ampoules in the temperature range from 250 to 450°C. Inspection of the sulfurized nanotube layers via scanning electron microscopy (SEM) and X-ray diffraction (XRD) has disclosed a gradual crystal growth within nanotube walls, represented by TiS2 or TiS3 phases. Optimally sulfurized TiO2 nanotube layers exhibit 3 times enhanced photocurrent in the UV spectral region, compared to the blank counterpart, with a shift of the light absorption up to the wavelength of 550 nm. In addition, the photocatalytic decomposition of a methylene blue aqueous solution using a wavelength of 365 nm is gradually improved with increasing sulfurization temperature. The highest photocatalytic decomposition rate is 2.3 times larger compared to the blank TiO2 nanotube layer. The application of sulfurized TiO2 nanotube layers for the electrocatalytic hydrogen evolution is also discussed.
Rozsah stran
p.
ISSN
2352-9407
Trvalý odkaz na tento záznam
Projekt
EC/H2020/638857/EU/Towards New Generation of Solid-State Photovoltaic Cell: Harvesting Nanotubular Titania and Hybrid Chromophores/CHROMTISOL
Zdrojový dokument
Applied Materials Today. 2019
Vydavatelská verze
Přístup k e-verzi
Attribution-NonCommercial-NoDerivs 3.0 Czech Republic
Název akce
ISBN
Studijní obor
Studijní program
Signatura tištěné verze
Umístění tištěné verze
Přístup k tištěné verzi
Klíčová slova
TiO2 nanotube layers, Sulfurization, Photocurrent, Photocatalysis, Photoelectrochemistry
Endorsement
Review
item.page.supplemented
item.page.referenced
Creative Commons license
Except where otherwised noted, this item's license is described as Attribution-NonCommercial-NoDerivs 3.0 Czech Republic