| China is rich in Ti-related resource, she has the biggest reserves in the world. Ti-related compounds take an important role in many means of people's life. To research the synthesis and relevant properties of Ti-related compounds is very meaningful in exerting our mineral superiority and promoting industrial development. Nowadays, energy and environment are getting more and more attentions. SSP (soft solution process) technique, as one kind of techniques which are friendly to environment, is suitable to be employed in the synthesis of materials. The sol-gel technique and hydrothermal method which both belong to SSP technique have been neatly used to synthesize some representative Ti-related compounds according to real conditions in this work. A sol-hydrothermal approach has been used to synthesize phase pure anatase TiO2 nanoparticles with homogeneous size and high disperse at low temperature. With the role of CTAB, some kind of surfactant, the result can be gotten in a wide range of reacting conditions which are suitable to the practical production. Photocatalytic experiments prove obtained TiO2 has superior ability in photocatalytic fields. A hydrothermal method has been utilized to obtain layered titanium acid which proved to be H2Ti2O5.H2O by doping Zn2+ into Ti-O structure. The discussions of reacting process will be helpful for further doping researches. Characterized by photocatalytic experiments, the products show great photocatalytic ability. More important, its unique layered structure will offer good carrier for synthesizing some new compounds. A sol-gel-hydrothermal approach has been employed to fabricate phase pure pyrophanite MnTiO3 powders at low temperature. This technique can improve the previous one from the means of energy-saving and final quality. Morever, the as-synthesized powders are sintered to get MnTiO3 ceramics. Its electric property shows that manganese titanate (MnTiO3) has the potential to be used as microwave dielectric ceramics. |
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