TY - JOUR
T1 - Photodegradation of methylene blue of niobium-doped zinc oxide thin films produced by electrostatic spray deposition
AU - Yoon, Hyun
AU - Joshi, Bhavana N.
AU - Na, Seung Heon
AU - Choi, Jae Young
AU - Yoon, Sam S.
N1 - Funding Information:
This work was supported by the Industrial Strategic Technology Development Program ( 10045221 ) funded by the Ministry of Knowledge Economy (MKE, Korea) and by the Global Frontier R&D Program ( 2013-073298 ) on Center for Hybrid Interface Materials (HIM) funded by the Ministry of Science, ICT & Future Planning . This work was also supported by the Center for Inorganic Photovoltaic Materials (No. 2012-0001169 ) and the Converging Research Center Program through the Ministry of Education, Science and Technology ( 2013K000186 ).
PY - 2014/6
Y1 - 2014/6
N2 - Nanocrystalline transparent ZnO thin films, with different concentrations of niobium (Nb∼0, 5, 10, 15 atoms per formula unit, at%), were successfully deposited by the electrostatic spray deposition method. The crystalline phase, surface morphology, surface roughness and photocatalytic properties of these Nb:ZnO thin films were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, and UV-visible spectroscopy, respectively. The Nb-doped films were tested for their photocatalytic abilities in aqueous solutions of methylene blue (MB) under UV illumination, where it showed that increasing Nb up to 10 at%, with respect to ZnO, enhanced the photocatalytic activity. ZnO films doped with 10 at% Nb demonstrated excellent photocatalytic activity, with degradation of MB achieved in fewer than 2 h of UV irradiation.
AB - Nanocrystalline transparent ZnO thin films, with different concentrations of niobium (Nb∼0, 5, 10, 15 atoms per formula unit, at%), were successfully deposited by the electrostatic spray deposition method. The crystalline phase, surface morphology, surface roughness and photocatalytic properties of these Nb:ZnO thin films were characterized by X-ray diffraction, scanning electron microscopy, atomic force microscopy, and UV-visible spectroscopy, respectively. The Nb-doped films were tested for their photocatalytic abilities in aqueous solutions of methylene blue (MB) under UV illumination, where it showed that increasing Nb up to 10 at%, with respect to ZnO, enhanced the photocatalytic activity. ZnO films doped with 10 at% Nb demonstrated excellent photocatalytic activity, with degradation of MB achieved in fewer than 2 h of UV irradiation.
KW - Electrostatic spray deposition
KW - Niobium
KW - Photocatalysis
KW - Zinc oxide
UR - http://www.scopus.com/inward/record.url?scp=84894578552&partnerID=8YFLogxK
U2 - 10.1016/j.ceramint.2013.11.041
DO - 10.1016/j.ceramint.2013.11.041
M3 - Article
AN - SCOPUS:84894578552
SN - 0272-8842
VL - 40
SP - 7567
EP - 7571
JO - Ceramics International
JF - Ceramics International
IS - 5
ER -