Open AccessZinc-Doped Titania Embedded on the Surface of Zirconia: A Potential Visible-Responsive Photocatalyst Material
Author(s) -
Azizia Alifi,
Rian Kurniawan,
Akhmad Syoufian
Publication year - 2020
Publication title -
indonesian journal of chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.273
H-Index - 14
eISSN - 2460-1578
pISSN - 1411-9420
DOI - 10.22146/ijc.51172
Subject(s) - calcination , dopant , zinc , photocatalysis , cubic zirconia , chemistry , scanning electron microscope , fourier transform infrared spectroscopy , doping , diffuse reflectance infrared fourier transform , band gap , spectroscopy , composite number , absorption edge , energy dispersive x ray spectroscopy , infrared spectroscopy , visible spectrum , chemical engineering , materials science , composite material , organic chemistry , ceramic , optoelectronics , catalysis , physics , quantum mechanics , engineering
The preparation and characterization of zirconia-supported titania with a zinc dopant had been studied. Zinc-doped titania was grown on the surface of zirconia by the sol-gel method. Various zinc contents and calcination temperatures were applied to investigate the zinc doping effect and crystal structure of the zirconia-titania composite. X-ray diffraction method, Fourier-transform infrared spectroscopy, and UV-Vis reflectance spectroscopy were performed to characterize the composite. The morphology of the composite was observed by using a scanning electron microscope, and its composition was analyzed by using energy dispersive spectroscopy. Among various zinc dopant contents and calcination temperatures investigated, doping with 5% zinc (Zn wt./Ti wt.) at 900 °C calcination shows the best result in response to visible light with a bandgap of 2.87 eV and absorption edge wavelength of 432.61 nm.