Table 2.
Nanoparticles and their applications in environmental remediation.
| Nanomaterial | Application | References |
|---|---|---|
| AgNPs | Treatment of wastewater due to their antibacterial properties | [102–104] |
| Ag2+ | Affect cell structure and permeability of cell wall | [105] |
| AgNPs | Act as photocatalyst and increases the UV inactivation of bacteria and viruses. | [106] |
| Iron nanoparticles | Groundwater remediation by reducing metal ions effectively | [107] |
| Gold nanoparticles (AuNPs) | Remove inorganic mercury from drinking water | [108] |
| Titanium dioxide (TiO2) | Air and wastewater purification | [109] |
| Gold and TiO2 composite | Efficiently removes sulphur | [110] |
| Silver-doped TiO2 nanofibers | Photodegradation of chlorophenol | [111] |
| TiO2-based nanoparticles | Removal of harmful sulphur dioxide from air | [112] |
| Zinc oxide | Adsorbent to remove heavy metals such as copper and lead | [113, 114] |
| Mesoporous silica nanomaterials (MSN) | Excellent adsorbent to remove pollutants from the air | [115] |
| Amino/Thiol-functionalized MSNs | Removal of heavy metals from wastewater | [116, 117] |
| Amine-modified xerogels | Removal of carbon dioxide and H2S from natural gas | [118] |
| SiO2 | Removal of mercury from aqueous solution | [119] |
| Fullerenes (C60) | Used to kill microbes via photocatalytic process | [120] |
| Composite of fullerene and polyvinylpyrrolidone | Used in water disinfection by killing bacteria | [121] |
| SWCNTs | Adsorption of heavy metals | [122] |
| MWCNTs | Removal of heavy metal ions | [123–126] |
| Graphene | Adsorption of heavy metal contaminants from wastewater | [127, 128] |