| Popis: |
Iron oxide nanomaterials possess unique properties viz., excellent magnetic properties, moderate grain size, tunable aspect ratio, and feasibility of surface modification. Owing to these properties along with its biocompatible nature, much research attention is being paid toward development of iron oxide-based nanocomposites. These iron oxide nanocomposites are surface-engineered using functional groups, metals, metal oxide, polymers, biomaterials, and other species in order to make them target-selective and definite for several diverse heavy metal removal they are being. In comparison to nonsurface engineered iron oxide, it has been observed that hybrid iron oxide-based surface-engineered nanosorbents have distinct advantages in the elimination of heavy metal from wastewater in terms of flexibility, ease of design and/or operation, sensitivity to lethal pollutants, reusable with maximum efficiency, less toxicity, and low cost. Moreover, immobilization technologies comprising surface-engineered iron oxide composites for improved removal efficiency tends to be an inventive research practice. This review critically evaluates the potential application of surface-engineered hybrid iron oxide nanosorbents in heavy metal removal from wastewater. |
