Purifying nanomaterials presents several challenges:
Scalability: Many purification techniques are difficult to scale up for industrial production, making it challenging to produce large quantities of high-purity nanomaterials. Cost: Some purification methods, such as HPLC, are expensive and may not be feasible for large-scale applications. Complexity: The complexity of nanomaterial mixtures can make it difficult to achieve complete purification. For example, carbon nanotube samples often contain a mixture of tubes with different lengths, diameters, and chiralities. Stability: Some nanomaterials may degrade or agglomerate during the purification process, affecting their properties and performance.
