| 초록 |
Flower-like shaped rutile-rich TiO2 nanoparticles were synthesized by the reaction of HCl with titanium diisopropoxide bis(acetylacetonate) immobilized in reverse micelles composed of oleic acid, water, and xylene. Brunauer-Emmett-Teller (BET) analysis showed large surface area of the synthesized TiO2 nanoparticles of 177.8 m2/g. We investigated the effect of the concentration of Ti precursor and role of oleic acid in the formation of TiO2 nanoparticles. Rutile-rich TiO2 nanoparticles with large surface area showed better photocatalytic activity in decomposing methyl orange under visible-light irradiation than anatase and rutile mixed phase TiO2 particles. |
