Adsorptive removal of pollutants from water using magnesium ferrite nanoadsorbent: a promising future material for water purification

Abstract

Nanoadsorbents having large specific surface area, high pore volume with tunable pore size, affordability and easy magnetic separation gained much popularity in recent time. Iron-based nanoadsorbents showed higher adsorption capacity for different pollutant removal from water among other periodic elements. Spinel ferrite nanomaterials among iron-bearing adsorbent class performed better than single iron oxide and hydroxides due to their large surface area, mesoporous pore, high pore volume and stability. This work aimed at focusing on water treatment using magnesium ferrite (MgFe 2 O 4 ) nanomaterials. Synthesis routes, properties and pollutant adsorption were critically investigated to explore the performance of magnesium ferrite in water treatment. Structural and surface properties were greatly affected by the factors involved in different synthesis routes and iron and magnesium ratio. Complete removal of pollutants through adsorption was achieved using magnesium ferrite. Pollutant adsorption capacity of MgFe 2 O 4 and its modified forms was found several folds higher than Fe 2 O 3 and Fe 3 O 4 nanomaterials. In addition, MgFe 2 O 4 showed strong stability in water than other pure iron oxide and hydroxide. Modification with graphene oxide, activated carbon, biochar and silica was demonstrated to be beneficial for enhanced adsorption capacity. Complex formation was suggested as a dominant mechanism for pollutant adsorption. These nanomaterials could be a viable and competitive adsorbent for diverse pollutant removal from water.

Effective Elimination of Hazardous Chromium (VI) Using Periodic Elements and Contemporary Adsorption Methods by Using Magnesium Ferrite Nanoparticle: A Review

“…Data reported at very high pH and low pH. It is a low-cost adsorbent and can get from easy way and cheap sources [34] [57] [58]. [66]…”

Adsorptive Potential of Orange Peel Biochar for Removal of Basic Red 46 Dye and Phytotoxicity Analysis

“…Physicochemical procedures such as oxidation, ion exchange, ozonation, electrochemical methods, electrocoagulation, flocculation, ultrafiltration, photodegradation, reverse osmosis, or combinations thereof have been developed for dye and Riti Thapar Kapoor pollutants elimination [16,17]. Many commercial sorbents, such as resins, activated carbon, zeolites, graphene, chitosan, alumina, clay, and metal/biochar nanocomposites have been used for removing pollutants from industrial effluent [18,19].…”