The synthesis of nanoscale zeolites involves controlled crystallization processes to achieve the desired particle size and morphology. Common methods include hydrothermal synthesis, solvothermal synthesis, and microwave-assisted synthesis. These techniques often require the use of structure-directing agents, such as organic templates, to guide the formation of the zeolite framework. Post-synthesis modifications, such as ion-exchange and functionalization, can further tailor the properties of nanoscale zeolites for specific applications.