Solvothermal

Solvothermal synthesis is a method of producing chemical compounds. It is very similar to the hydrothermal route (where the synthesis is conducted in a stainless steel autoclave), the only difference being that the precursor solution is usually not aqueous (however, this is not always the case in all literature uses of the expression). Using the solvothermal route gains one the benefits of both the sol-gel and hydrothermal routes.Thus solvothermal synthesis allows for the precise control over the size, shape distribution, and crystallinity of metaloxide nanoparticles or nanostructures. These characteristics can be altered by changing certain experimental parameters, including reaction temperature, reaction time, solvent type, surfactant type, and precursor type.

Solvothermal synthesis has been used in laboratory to make nanostructured titanium dioxide, graphene,carbon and other materials.

The high photocatalytic capacity of TiO2 leads to the degradation of organic [6][7] and biological molecules  into smaller and less harmful compounds. Because of their small size, TiO2 nanostructures also provide increased surface area at which photocatalytic reactions may occur, increasing their activity. This photocatalytic activity may be applied to air purification,self-sterilization, water purification  and molecular hydrogen production. Thus the ability of solvothermal synthesis to precisely tailor TiO2 nanostructures has the potential to maximize the efficiency of those nanostructures in applications.

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