Journal
JOURNAL OF NANOSCIENCE AND NANOTECHNOLOGY
Volume 11, Issue 11, Pages 9600-9606Publisher
AMER SCIENTIFIC PUBLISHERS
DOI: 10.1166/jnn.2011.5277
Keywords
NaTaO3 Nanoparticles; Iodine-Doping; Hydrothermal; Photocatalyst; Density Functional Theory
Categories
Funding
- National Natural Science Foundation of China [20863004, 20967004]
- Ministry of Education [Z2004-2-15028, Z2007-1-01034]
- inner Mongolia National Science Foundation [2010Zd08]
- Science Research Foundation of Inner Mongolia Education Bureau [NJ05027]
- scientific research foundation for the returned overseas Chinese scholars of Ministry of Education [2006-331]
- Scientific and Technological Innovation Team of Inner Mongolia University [12110614]
Ask authors/readers for more resources
Iodine-doped NaTaO3 nanoparticles were prepared by hydrothermal conditions and explored as the visible-light-driven photocatalysts for photodegradation of methylene blue in water. It is found that l-doped NaTaO3 showed photodegradation efficiency superior over the un-doped NaTaO3. UV-Vis diffuse reflectance spectra indicate that the absorption edges shifted towards longer wavelength with increasing the iodine concentration. The energy band structure and the transient behavior of the photogenerated charge carriers for both un-doped and doped NaTaO3 powders were investigated using density functional theory. The improved photocatalytic activity under visible light for l-doped NaTaO3 may be caused by both the broadening of valence band that inhibited the recombination of e-h+ pairs and the narrowing of energy band gap due to the much negative energy levels in the bottom of conduction bands.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available