Supported and unsupported nanomaterials for water and soil remediation: Are they a useful solution for worldwide pollution?

- NP composition, size, and shape affect their efficiency for removal of pollutants.
- Data from NMs used on industrial wastewaters and contaminated soils is missing.
- Multicomponent experiments in batch, column, and fixed-bed systems are needed.
- Nanocomposites are more efficient on pollutants removal than starting materials.
- Nanocomposites show good efficiency after several adsorption/regeneration cycles.