Abstract
Brookite is a polymorph of titania found in nature. Synthesis of single-phase brookite is difficult in comparison to anatase and rutile. It is well known that brookite has various potential applications. Therefore, methods for the synthesis of brookite with high purity are highly desirable. This chapter summarizes simple hydrothermal methods for the synthesis of brookite crystals with various morphologies using water-soluble titaniumcomplexes. Physical properties of the brookite powders obtained are also described. In addition, the formation mechanisms are discussed. A series of studies have indicated that the structures and nature of the complexes have a strong influence on the formation of brookite nuclei. Therefore, the titanium source is quite important for the selective synthesis of titania polymorphs. Application of the present approach allows the synthesis of rod-like brookite crystals with aspect ratios of 1 - 10, as well as snowflake-like crystal agglomerations. The mechanism of morphological control is also discussed.
| Original language | English |
|---|---|
| Title of host publication | Titanium Dioxide Nanoparticles |
| Subtitle of host publication | Characterizations, Properties and Syntheses |
| Publisher | Nova Science Publishers, Inc. |
| Pages | 71-92 |
| Number of pages | 22 |
| ISBN (Electronic) | 9781536110838 |
| ISBN (Print) | 9781536110739 |
| Publication status | Published - 2017 Jan 1 |
Keywords
- Brookite
- Hydrothermal method
- Morphological control
- Water-soluble titanium complex