Synthesis of mesoporous titania nanoparticles with anatase frameworks and investigation of their photocatalytic performance.
In this research paper, we synthesize various types of mesoporous titania nanoparticles (MTNs) with suitable surface area and pore size while creating anatase frameworks by applying hydrothermal treatment or calcination at different temperatures. Wide-angle XRD patterns and N2 adsorption-desorption isotherms reveal that the MTNs with crystallized anatase frameworks can be synthesized after an optimized hydrothermal treatment. In contrast, calcination of MTNs at high temperature caused the collapse of mesoporous structure, resulted in drastic reduction of the surface area of the MTNs. In addition, we investigate the photocatalytic activity of the prepared MTNs by measuring the degradation of methylene blue (MB). The results show that the reaction rates of the photocatalytic MB decomposition strongly depend on the degree of crystallinity in the MTNs frameworks and on the surface area of MTNs.
World Premier International (WPI) Research Center for Materials Nanorachtechtonics (MANA), National Institute for Materials Science (NIMS), 1-1 Namiki, Tsukuba, Ibaraki, 305-0044, Japan.
Mohamed B
MB
Zakaria
Norihiro
N
Suzuki
Kotaro
K
Shimasaki
Nobuyoshi
N
Miyamoto
Yu-Tzu
YT
Huang
Yusuke
Y
Yamauchi
D002384:Catalysis; D003460:Crystallization / Q000379:methods*; D008027:Light; D046911:Macromolecular Substances / Q000737:chemistry / Q000528:radiation effects; D008422:Materials Testing; D008968:Molecular Conformation / Q000528:radiation effects; D049329:Nanostructures / Q000737:chemistry* / Q000528:radiation effects / Q000648:ultrastructure*; D036103:Nanotechnology / Q000379:methods; D010316:Particle Size; D010777:Photochemistry / Q000379:methods; D016062:Porosity; D013499:Surface Properties / Q000528:radiation effects; D014025:Titanium / Q000737:chemistry*
D046911:Macromolecular Substances; C009495:titanium dioxide; D014025:Titanium