TY - JOUR
T1 - Facile synthesis of tungsten oxide – Bismuth vanadate nanoflakes as photoanode material for solar water splitting
AU - Ibrahim, Akram A.M.
AU - Khan, Ibrahim
AU - Iqbal, Naseer
AU - Qurashi, Ahsanullhaq
N1 - Funding Information:
The National Plan funded this project for Science, Technology and Innovation (MAARIFAH) – King Abdulaziz City for Science and Technology – through the Science and Technology unit at King Fahd University of Petroleum and Minerals (KFUPM) – the Kingdom of Saudi Arabia, award number (13-NAN1600-04).
Publisher Copyright:
© 2016 Hydrogen Energy Publications LLC
PY - 2017/2/2
Y1 - 2017/2/2
N2 - This research article describes the synthesis of hetero-structured WO3/BiVO4 nanoflakes as photoanode material for photoelectrochemical water splitting. The heterojunction WO3/BiVO4 nanoflakes developed by facile hydrothermal method. WO3/BiVO4 uniform films fabricated simply by drop casting technique onto indium oxide tin oxide (ITO) coated glass substrates. Detailed morphological, structural and compositional characterization of WO3/BiVO4 carried out by XRD, FE-SEM, and EDX techniques. Optical properties studied by Raman and UV–VIS spectroscopy, respectively. The band gap energy of WO3/BiVO4 hetero-junction estimated to be about 2.00 eV. These WO3/BiVO4 heterojunction structures offered enhanced photo-conversion efficiency and increased photo-corrosion stability. In addition, these nanoflakes films showed significantly enhanced photo-electrochemical properties due to their high surface-area and enhanced separation of the photo-generated charge at the WO3/BiVO4 interface. The effect of calcination temperature on WO3/BiVO4 also investigated.
AB - This research article describes the synthesis of hetero-structured WO3/BiVO4 nanoflakes as photoanode material for photoelectrochemical water splitting. The heterojunction WO3/BiVO4 nanoflakes developed by facile hydrothermal method. WO3/BiVO4 uniform films fabricated simply by drop casting technique onto indium oxide tin oxide (ITO) coated glass substrates. Detailed morphological, structural and compositional characterization of WO3/BiVO4 carried out by XRD, FE-SEM, and EDX techniques. Optical properties studied by Raman and UV–VIS spectroscopy, respectively. The band gap energy of WO3/BiVO4 hetero-junction estimated to be about 2.00 eV. These WO3/BiVO4 heterojunction structures offered enhanced photo-conversion efficiency and increased photo-corrosion stability. In addition, these nanoflakes films showed significantly enhanced photo-electrochemical properties due to their high surface-area and enhanced separation of the photo-generated charge at the WO3/BiVO4 interface. The effect of calcination temperature on WO3/BiVO4 also investigated.
KW - Solar water splitting
KW - WO
KW - WO/BiVO heterojunctions
KW - WO/BiVO nanoflakes
UR - http://www.scopus.com/inward/record.url?scp=85006817961&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2016.09.095
DO - 10.1016/j.ijhydene.2016.09.095
M3 - Article
AN - SCOPUS:85006817961
SN - 0360-3199
VL - 42
SP - 3423
EP - 3430
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 5
ER -
