Decolorization of beads-milled TiO2 nanoparticles suspension in an organic solvent |
| |
| Authors: | I Made Joni Takashi Ogi Agus Purwanto Kikuo Okuyama Terunobu Saitoh Kazutaka Takeuchi |
| |
| Affiliation: | 1. Department of Chemical Engineering, Graduate School of Engineering, Hiroshima University, 1-4-1 Kagamiyama, Higashi Hiroshima, Hiroshima 739-8527, Japan;2. Department of Physics, Faculty of Mathematics and Natural Science, Padjadjaran University, Jl. Raya Bandung-Sumedang KM 21, Jatinangor 45363, Indonesia;3. Department of Chemical Engineering, Faculty of Engineering, Sebelas Maret University, Jl. Ir. Sutami 36 A, Surakarta, Central Java 57126, Indonesia;4. Material Processing Research Department 3, Canon Inc., 70-1, Yanagi-cho, Saiwai-ku, Kawasaki-shi, Kanagawa 212-8602, Japan |
| |
| Abstract: | In this paper, a new method is proposed for the decolorization of a yellow-hued suspension of rutile TiO2 nanoparticles in an organic solvent (diethylene glycol dimethylether). The presence of color has always been undesirable in a suspension of nanoparticles filler used for industrial needs, particularly for optical applications.A colorless suspension was achieved by irradiating well-dispersed TiO2 nanoparticles in an organic solvent with UV-light (λ = 254 nm) for 5 h. TiO2 nanoparticles of 1 and 5 wt.% were dispersed using a beads mill method. Trimethoxytrifluor(propyl) silane was used as a dispersant to achieve stability. The effect of the UV-light irradiation on the TiO2 nanosuspension was investigated by means of a Fourier transform nuclear magnetic resonance analyzer (FT-NMR). The dispersant was partially desorbed due to the interaction of UV light and the TiO2/dispersant complex. Thus, an enhanced transparency and the absence of color were obtained for well-dispersed TiO2 nanoparticles in an organic solvent. |
| |
| Keywords: | |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
