Magnetic nanoparticles surface-modified with tridentate ligands for removal of heavy metal ions from water

Masjedi, Ali; Askarizadeh, Elham; Baniyaghoob, Sahar

doi:10.1016/j.matchemphys.2020.122917

Cited by 32 publications

(11 citation statements)

References 34 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Additionally, both adsorption and desorption efficiency decreased through the regeneration cycles and due to the difficulty in reversing adsorption [362]. Cu(II) 93.70 58.66 [196] Pb(II) 90 [197] Cr(VI) 55 88 90 [361] Pb(II) 97.34 90 [175] Hg(II) ≥96 [157] Pb(II) 90 [201] Pb(II) 93.5 89.3 [335] Cu(II) 80.64 73.3 [335] As(V) 95 56 [342] Cd(II) 76.4 [348] Cu(II) 80.4 [348] Pb(II) 70.2 [348] Hg(II) >90 ~75.5 [324] Cd…”

Section: Main Findings During the Last Decadementioning

confidence: 99%

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

et al. 2021

View full text Add to dashboard Cite

Research on contamination of groundwater and drinking water is of major importance. Due to the rapid and significant progress in the last decade in nanotechnology and its potential applications to water purification, such as adsorption of heavy metal ion from contaminated water, a wide number of articles have been published. An evaluating frame of the main findings of recent research on heavy metal removal using magnetic nanoparticles, with emphasis on water quality and method applicability, is presented. A large number of articles have been studied with a focus on the synthesis and characterization procedures for bare and modified magnetic nanoparticles as well as on their adsorption capacity and the corresponding desorption process of the methods are presented. The present review analysis shows that the experimental procedures demonstrate high adsorption capacity for pollutants from aquatic solutions. Moreover, reuse of the employed nanoparticles up to five times leads to an efficiency up to 90%. We must mention also that in some rare occasions, nanoparticles have been reused up to 22 times.

show abstract

Section: Main Findings During the Last Decadementioning

confidence: 99%

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

et al. 2021

View full text Add to dashboard Cite

show abstract

“…Magnetic nanoadsorbents have been observed to lose their adsorptive capacity after multiple reuse cycles (Meng et al 2018 ; Wanjeri et al 2018 ; Aliannejadi et al 2019 ; Ma et al 2019 ; Baig et al 2020 ; Masjedi et al 2020 ; Rezaei et al 2020 ; Peralta et al 2021 ). For example, ibuprofen uptake by an as-prepared hybrid silica-based magnetic nanoadsorbent experienced a drastic 42% decline in the second cycle, implying that the regeneration reagent used (ethanol) had not extracted all of the ibuprofen adsorbed in the previous adsorption step (Peralta et al 2021 ).…”

Section: Developments With Magnetic Nanoadsorbents and Magnetic Separationmentioning

confidence: 99%

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Mudhoo

Sillanpää

2021

Environ Chem Lett

View full text Add to dashboard Cite

Pure water will become a golden resource in the context of the rising pollution, climate change and the recycling economy, calling for advanced purification methods such as the use of nanostructured adsorbents. However, coming up with an ideal nanoadsorbent for micropollutant removal is a real challenge because nanoadsorbents, which demonstrate very good performances at laboratory scale, do not necessarily have suitable properties in in full-scale water purification and wastewater treatment systems. Here, magnetic nanoadsorbents appear promising because they can be easily separated from the slurry phase into a denser sludge phase by applying a magnetic field. Yet, there are only few examples of large-scale use of magnetic adsorbents for water purification and wastewater treatment. Here, we review magnetic nanoadsorbents for the removal of micropollutants, and we explain the integration of magnetic separation in the existing treatment plants. We found that the use of magnetic nanoadsorbents is an effective option in water treatment, but lacks maturity in full-scale water treatment facilities. The concentrations of magnetic nanoadsorbents in final effluents can be controlled by using magnetic separation, thus minimizing the ecotoxicicological impact. Academia and the water industry should better collaborate to integrate magnetic separation in full-scale water purification and wastewater treatment plants.

show abstract

“…For Hg(II), a trace grade HCl (0.5% HCl) amount (0.2 mL) was added. Accordingly, the adsorption capacity and adsorption efficiency were calculated by using eqn (2) and 3, respectively.…”

Section: Heavy Metals Adsorption Experiments and Kineticsmentioning

confidence: 99%

“…1 Globally, heavy metal ions are mainly introduced into different ecosystems through anthropogenic activities. 2 Such activities can include mining, smelting, 3 chemicals and petrochemical manufacturing, 4 energy generation, 1 domestic and industrial waste discharges, 5 agricultural wastes, 6 metallurgy, 7 and construction. 8 The most toxic and hazardous heavy metal ions in water include As(III), As(V), Cr(III), Cr(VI), Cu(II), Hg(II), Pb(II), Cd(II), Ni(II), Zn(II), 9 and Mn(II).…”

Section: Introductionmentioning

confidence: 99%

Synthesis of FeO@SiO₂–DNA core–shell engineered nanostructures for rapid adsorption of heavy metals in aqueous solutions

et al. 2020

View full text Add to dashboard Cite

show abstract

Magnetic nanoparticles surface-modified with tridentate ligands for removal of heavy metal ions from water

Cited by 32 publications

References 34 publications

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Synthesis of FeO@SiO₂–DNA core–shell engineered nanostructures for rapid adsorption of heavy metals in aqueous solutions

Contact Info

Product

Resources

About

Magnetic nanoparticles surface-modified with tridentate ligands for removal of heavy metal ions from water

Cited by 32 publications

References 34 publications

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

Heavy Metal Adsorption Using Magnetic Nanoparticles for Water Purification: A Critical Review

Magnetic nanoadsorbents for micropollutant removal in real water treatment: a review

Synthesis of FeO@SiO2–DNA core–shell engineered nanostructures for rapid adsorption of heavy metals in aqueous solutions

Contact Info

Product

Resources

About

Synthesis of FeO@SiO₂–DNA core–shell engineered nanostructures for rapid adsorption of heavy metals in aqueous solutions