ABSTRACT

The solvothermal/hydrothermal method is known for its low cost, ease of operation, and ease of control for the fabrication of micro/nanostructured materials. The general strategy is illustrated in Figure 2.1. Briey, structural directors (surfactants or organic solvents) are added to precursor solutions and then maintained at 150°C-250°C for reaction. Novel micro/nanostructure materials are obtained after reaction for a certain time (about 10 hours) and/or subsequent heat treatment. The morphology of the products depends on the structural directors used. We can produce various micro/nanostructured materials, such as metal oxides or suldes and even composites, by choosing different precursors and structural directors.