It is reported that Iranian researchers have adopted a simpler method to produce nano-titanium dioxide. This method does not require high pressure or complicated equipment.
Due to its wide range of uses, the demand for nano-titanium dioxide has increased significantly in recent decades. At present, this material is mainly used for the production of dye-sensitized solar cells (DSSCs), hydrogen storage materials, hybrid systems, and photocatalysts.
There are many methods for producing nano-titanium dioxide, such as sol-gel method, chemical vapor deposition method, hydrothermal method and ultrasonic method. In the above methods, the hydrothermal method is more popular, because this method is simple and does not require expensive equipment. However, in the synthesis process, there is a certain danger in the operation of the autoclave equipment. This study adopted the hydrothermal method. Improvements make it easier to synthesize titanium dioxide nanotubes and nanofibers.
According to the researchers, the production of titanium dioxide nanotubes does not use autoclave equipment, but also reduces the pressure and temperature. By controlling the initial size of the particles, this method can synthesize nanotubes with similar shapes.
Compared with spherical nano-titanium dioxide, titanium dioxide nanotubes have a tubular structure with higher charge transfer rate and larger specific surface area. Based on the above findings, due to the greater effect of adsorbed fuel, the efficiency of transferring electrons to the fluidized bed is higher. If these titanium dioxide nanotubes are put into use, the energy efficiency of solar cells can be improved.
The specific results of this study have been published in the authoritative international journal "Electronic Materials Letters", Volume 11, Number 4.
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