Amino-functionalized magnetic nanoparticles for CO<sub>2</sub> capture

Oddo, Emanuele; Pesce, Ruggiero M.; Derudi, Marco; Magagnin, Luca

doi:10.1080/19475411.2021.1987350

Cited by 5 publications

(4 citation statements)

References 37 publications

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“…Thus, the FTIR and TGA analyses confirmed that the magnetic adsorbent was functionalized with amine groups. The functionalized adsorbent was highly stable in water due to the H-bonding between the water and the amine groups of the functionalized adsorbent [ 21 ].…”

Section: Resultsmentioning

confidence: 99%

Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater

et al. 2022

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This study is focused on the kinetics and adsorption isotherms of amine-functionalized magnesium ferrite (MgFe2O4) for treating the heavy metals in wastewater. A sol-gel route was adopted to produce MgFe2O4 nanoparticles. The surfaces of the MgFe2O4 nanoparticles were functionalized using primary amine (ethanolamine). The surface morphology, phase formation, and functionality of the MgFe2O4 nano-adsorbents were studied using the SEM, UV-visible, FTIR, and TGA techniques. The characterized nanoparticles were tested on their ability to adsorb the Pb2+, Cu2+, and Zn2+ ions from the wastewater. The kinetic parameters and adsorption isotherms for the adsorption of the metal ions by the amine-functionalized MgFe2O4 were obtained using the pseudo-first-order, pseudo-second-order, Langmuir, and Freundlich models. The pseudo-second order and Langmuir models best described the adsorption kinetics and isotherms, implying strong chemisorption via the formation of coordinative bonds between the amine groups and metal ions. The Langmuir equation revealed the highest adsorption capacity of 0.7 mmol/g for the amine-functionalized MgFe2O4 nano-adsorbents. The adsorption capacity of the nanoadsorbent also changed with the calcination temperature. The MgFe2O4 sample, calcined at 500 °C, removed the most of the Pb2+ (73%), Cu2+ (59%), and Zn2+ (62%) ions from the water.

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Section: Resultsmentioning

confidence: 99%

Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater

et al. 2022

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“…The absorption efficiency was about 77% . Oddo et al also investigated the influence of temperature on CO 2 absorption using aminated magnetic nanoparticles . These research works overlooked the pH changes in their dispersion medium, distilled water, which is a crucial parameter for affecting the CO 2 capture.…”

Section: Introductionmentioning

confidence: 99%

“…Furthermore, the composite polymer particles lacked the ability to undergo efficient regeneration after CO 2 adsorption–desorption cycles from the dispersion medium. The lack of renderability raised concerns regarding the long-term sustainability and cost-effectiveness of the CO 2 capturing process. ,, Therefore, appropriate design and synthesis of adsorbent materials having faster adsorption–desorption kinetics, considerable recyclability, and promising colloidal dispersity with rapid real-time separation capability from the dispersion medium are highly crucial for low-cost adsorption of CO 2 .…”

Section: Introductionmentioning

confidence: 99%

“… 38 Oddo et al also investigated the influence of temperature on CO 2 absorption using aminated magnetic nanoparticles. 39 These research works overlooked the pH changes in their dispersion medium, distilled water, which is a crucial parameter for affecting the CO 2 capture. This is because CO 2 molecules easily form carbonic acid in water due to the Lewis acidic characteristic, and the carbonic acid molecules dissociate to become bicarbonate ions.…”

Section: Introductionmentioning

confidence: 99%

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Facile Fabrication and Characterization of Amine-Functional Silica Coated Magnetic Iron Oxide Nanoparticles for Aqueous Carbon Dioxide Adsorption

Islam,

Rahman,

Alam

et al. 2024

ACS Omega

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Surface active amine-functionalized silica coated magnetic iron oxide nanoparticles were prepared by a simple two-step process for adsorbing CO 2 gas from aqueous medium. First, oleic acid (OA) coated iron oxide magnetic particles (denoted as Fe 3 O 4 -OA) were prepared by a simple coprecipitation method. Then, the surface of the Fe 3 O 4 -OA particles was coated with silica by using tetraethyl orthosilicate. Finally, aminated Fe 3 O 4 / SiO 2 -NH 2 nanoparticles were concomitantly formed by the reactions of 3aminopropyl triethoxysilane with silica-coated particles. The formation of materials was confirmed by Fourier transform infrared spectral analysis. Transmission electron microscopic analysis revealed both spherical and needle-shaped morphologies of magnetic Fe 3 O 4 /SiO 2 -NH 2 particles with an average size of 15 and 68.6 nm, respectively. The saturation magnetization of Fe 3 O 4 /SiO 2 -NH 2 nanoparticles was found to be 33.6 emu g −1 , measured by a vibrating sample magnetometer at ambient conditions. The crystallinity and average crystallite size (7.0 nm) of the Fe 3 O 4 /SiO 2 -NH 2 particles were revealed from X-ray diffraction data analyses. Thermogravimetric analysis exhibited good thermal stability of the nanoadsorbent up to an elevated temperature. Zeta potential measurements revealed pH-sensitive surface activity of Fe 3 O 4 /SiO 2 -NH 2 nanoparticles in aqueous medium. The produced magnetic Fe 3 O 4 /SiO 2 -NH 2 nanoparticles also exhibited efficient proton capturing activity (92%). The particles were used for magnetically recyclable adsorption of aqueous CO 2 at different pH values and temperatures. Fe 3 O 4 /SiO 2 -NH 2 nanoparticles demonstrated the highest aqueous CO 2 adsorption efficiency (90%) at 40 °C, which is clearly two times higher than that of nonfunctionalized Fe 3 O 4 -OA particles.

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Nanoarchitectured composite of polysulfone and carbon-based fillers bearing magnetically stimulable function for efficient CO2 capture

Nisar,

Dos Santos,

Geshev

et al. 2024

Journal of Science: Advanced Materials and Devices

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Amino-functionalized magnetic nanoparticles for CO₂ capture

Cited by 5 publications

References 37 publications

Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater

Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater

Facile Fabrication and Characterization of Amine-Functional Silica Coated Magnetic Iron Oxide Nanoparticles for Aqueous Carbon Dioxide Adsorption

Nanoarchitectured composite of polysulfone and carbon-based fillers bearing magnetically stimulable function for efficient CO2 capture

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Amino-functionalized magnetic nanoparticles for CO2 capture

Cited by 5 publications

References 37 publications

Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater

Kinetics and Adsorption Isotherms of Amine-Functionalized Magnesium Ferrite Produced Using Sol-Gel Method for Treatment of Heavy Metals in Wastewater

Facile Fabrication and Characterization of Amine-Functional Silica Coated Magnetic Iron Oxide Nanoparticles for Aqueous Carbon Dioxide Adsorption

Nanoarchitectured composite of polysulfone and carbon-based fillers bearing magnetically stimulable function for efficient CO2 capture

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Product

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About

Amino-functionalized magnetic nanoparticles for CO₂ capture