Wyszukiwarka
Shape-controllable synthesis of GdVO4 photocatalysts and their tunable properties in photocatalytic hydrogen generation
Abstrakt
Novel visible light responsive materials for water splitting are essential for the efficient conversion of solar energy into hydrogen bond energy. Among other semiconductors, gadolinium orthovanadate has appropriate conduction and valence band edges positioned to split water molecules and a narrow band gap that allows the use of visible light for hydrogen generation. Thus, we present here that hydrogen evolution under visible light (λ > 420 nm) could be accomplished using hierarchical 3D GdVO4 particles, obtained by a simple, one pot hydrothermal synthesis. We found that applying various reaction components, such as EDTA-Na2 and EDTA, and adjusting the pH of the solution allow one to tune the shape of GdVO4 (such as short nanowires, long nanowires, short nanorods, long nanorods, nanoparticles and spheres – all having a tetragonal crystal structure) as well as optical and photocatalytic properties. The highest ability to photocatalytically split methanol solution into hydrogen under UV-Vis irradiation was detected for the long nanowire sample (42 μmol h−1), having almost 11 times higher efficiency in comparison with the weakest sample – short nanowires. In addition, GdVO4 spheres generated H2 more than 2 times (5.75 μmol h−1) in comparison with the short nanorod sample (2.5 μmol h−1) under visible light excitation. Photostable in three-hour work cycles, long nanowires and spheres were even able to generate hydrogen from pure water, reaching values of 17 and 3 μmol under UV-Vis and Vis light, respectively.
Cytowania
-
2 4
CrossRef
-
0
Web of Science
-
2 0
Scopus
Autorzy (9)
-
Paweł Mazierski dr inż.
-
Jakub Sowik
-
Magdalena Miodyńska
-
Grzegorz Trykowski doktor
-
Alicja Mikołajczyk
-
Wojciech Lisowski dr hab.
-
Joanna Nadolna
-
Adriana Zaleska-Medynska Prof. dr hab. inż.
Cytuj jako
Pełna treść
pełna treść publikacji nie jest dostępna w portalu
Słowa kluczowe
Informacje szczegółowe
- Kategoria:
- Publikacja w czasopiśmie
- Typ:
- artykuły w czasopismach
- Opublikowano w:
-
DALTON TRANSACTIONS
nr 48,
strony 1662 - 1671,
ISSN: 1477-9226 - Język:
- angielski
- Rok wydania:
- 2019
- Opis bibliograficzny:
- Mazierski P., Sowik J., Miodyńska M., Trykowski G., Mikołajczyk A., Klimczuk T., Lisowski W., Nadolna J., Zaleska-Medynska A.: Shape-controllable synthesis of GdVO4 photocatalysts and their tunable properties in photocatalytic hydrogen generation// DALTON TRANSACTIONS -Vol. 48,iss. 5 (2019), s.1662-1671
- DOI:
- Cyfrowy identyfikator dokumentu elektronicznego (otwiera się w nowej karcie) 10.1039/c8dt04225j
- Źródła finansowania:
-
- Publikacja bezkosztowa
- Weryfikacja:
- Politechnika Gdańska
wyświetlono 61 razy
Publikacje, które mogą cię zainteresować
Lanthanide-organic-frameworks modified ZnIn2S4 for boosting hydrogen generation under UV–Vis and visible light
- J. Sowik,
- T. Grzyb,
- G. Trykowski
- + 5 autorów
Photocatalytically Active TiO2/Ag2O Nanotube Arrays Interlaced with Silver Nanoparticles Obtained from the One-Step Anodic Oxidation of Ti–Ag Alloys
- P. Mazierski,
- A. Malankowska,
- M. Kobylański
- + 7 autorów
A novel (Ti/Ce)UiO-X MOFs@TiO2 heterojunction for enhanced photocatalytic performance: Boosting via Ce4+/Ce3+ and Ti4+/Ti3+ redox mediators
- P. Parnicka,
- W. Lisowski,
- T. Klimczuk
- + 2 autorów
Fabrication of ILs-Assisted AgTaO3 Nanoparticles for the Water Splitting Reaction: The Effect of ILs on Morphology and Photoactivity
- J. Zwara,
- A. Pancielejko,
- M. Paszkiewicz-Gawron
- + 5 autorów