Cesium tungsten bronze is a typical compound of rare metal tungsten. Its chemical formula is CsxWO3. It has a crystal structure similar to that of tungsten bronze. It has a special oxygen octahedral structure. Therefore, it has excellent mechanical, optical and thermal properties and is widely used in medical, Film, glass, textile fiber and other fields. The following mainly introduces several major application of CsxWO3.
- The use of CsxWO3 in tumor diagnosis and treatment
CsxWO3 ultra-fine particles are considered to be an ideal cancer treatment material by many domestic and foreign researchers because they can achieve the dual anti-tumor effect of photothermal and photodynamic and realize the visual monitoring of tumor treatment.
- The use of CsxWO3 in film
Because of its unique molecular structure, CsxWO3 particles have the characteristics of large specific surface area, good dispersion performance, high strength, and excellent optical properties, making them extremely suitable for producing high-quality films. Compared with ordinary films, films containing CsxWO3 materials will have better thermal insulation, flexibility and transparency.
- The use of CsxWO3 in glass
CsxWO3 has good visible light transmittance and near-infrared light shielding performance, and can make the prepared glass products have better light transmittance and heat insulation effect, so it is suitable for building glass windows and automobile windows. It can effectively save the power consumption of the air conditioner and at the same time effectively prevent the aging of indoor items.
- The use of CsxWO3 in textile fibers
CsxWO3 is a dark blue powder with a purity of over 99.99% and a primary particle size of 50nm. It has strong absorption of near infrared (wavelength 800-1200nm) and is suitable for the production of a new generation of textile fibers.
How should cesium tungsten bronze be prepared? In the citric acid induced hydrothermal synthesis method, citric acid and ethanol are used as reducing agents, the carboxyl or hydroxyl group will be oxidized to carbon dioxide or carboxyl at a higher temperature and pressure, and W6+- is reduced to W4+ or W5+, cesium ion Doped with tungsten bronze structure to generate CsxWO3.
