Senlin Fu's research while affiliated with Kyushu University and other places

... This configuration turns this structure unique for application in photocatalysis. When synthesized as powders, two polymorphs were identified, the γ-Bi 12 TiO 20 formed at room temperature and the δ-Bi 12 TiO 20 that is stable only at high temperature [30][31][32][33][34]. The γ-Bi 12 TiO 20 has the (BCC) body-centered cubic structure of γ-Bi 2 O 3 (space group I23) while the δ-Bi 12 TiO 20 have the (FCC) face-centered cubic structure of δ-Bi 2 O 3 (space group Fm-3m). ...

... Bismuth silicon oxide (Bi 12 SiO 20 , BSO) with the sillenite structure Bi 12 MO 20 (M = Si, Ge, Ti), has unique combination of electric and optical properties [1] making it quite useful in a number of technologically important applications such as spatial light modulators [2], optical image converter [3] optical data processing [4], holographic recording medium [5] and so on. Most of these applications are based on the single crystals of BSO which can be grown by well-known techniques [6][7][8][9][10][11][12]. Alternately, thin films or polycrystalline powders of adequate density and transparency could be used in some of these applications and many reports on this aspect have been published recently. ...

... The result obtained indicates a considerable impact of the MA of the mixture on the γ-Bi 12 SiO 20 formation via the solid-phase reaction during the thermal treatment. Indeed, Fu and Ozoe [56] observed the formation of the single-phase γ-Bi 12 SiO 20 via solid-phase reaction without MA only after calcination at 800°C for 8 h, while the initial α-Bi 2 O 3 and metastable Bi 2 SiO 5 formed as a secondary phase were observed in the products at lower temperatures. ...

... Fu and Ozoe [32] reported that BT synthesis using commercial Bi 2 O 3 and TiO 2 is diffusion-controlled, and concluded that pure Bi 12 TiO 20 cannot be obtained by this method at temperatures below 780°C, even after 800 h of reactive TiO 2 -Met (Fig. 2) at a relatively low annealing temperature of 600°C for 1 h, suggesting that the peroxide surface may play an important role in the reaction mechanism. Fig. 2 In principle, the surface of oxide nanoparticles are much more complex than metals due the presence of voluminous oxygen centers [33]. ...

... Bismuth silicon oxide (Bi 12 SiO 20 , BSO) with the sillenite structure Bi 12 MO 20 (M = Si, Ge, Ti), has unique combination of electric and optical properties [1] making it quite useful in a number of technologically important applications such as spatial light modulators [2], optical image converter [3] optical data processing [4], holographic recording medium [5] and so on. Most of these applications are based on the single crystals of BSO which can be grown by well-known techniques [6][7][8][9][10][11][12]. Alternately, thin films or polycrystalline powders of adequate density and transparency could be used in some of these applications and many reports on this aspect have been published recently. ...