Document Type
Article (Restricted)
Publication Date
1-1-2010
Abstract
Titanium dioxide nanoparticles were synthesized via low-temperature sucrose ester micelle-mediated hydrothermal processing route using titanium isopropoxide as the precursor. X-ray diffractometer revealed that the samples possessed a mixed crystalline phases consisting of anatase and brookite in which anatase was the main phase. Upon increasing the hydrothermal reaction temperature, the degree of crystallinity of the nanoparticles improved and their morphology transformed from bundles of needles to rods and to spheres. Photocatalytic behaviour of the as-synthesized nanoparticles was investigated by photodegradation of methylene blue solution in an ultraviolet A irradiating photoreactor. The assynthesized nanoparticles exhibited higher photocatalytic performance as compared to the commercial counterpart.
Keywords
Hydrothermal, Nanoparticles, Photocatalyst, Sucrose ester, Titanium dioxide.
Divisions
PHYSICS
Publication Title
Sains Malaysiana
Volume
39
Issue
2
Publisher
Penerbit Universiti Kebangsaan Malaysia