Novel Amine-Functionalized Magnesium Oxide Adsorbents for CO2 Capture at Ambient Conditions

Alkadhem, Ali M.; Elgzoly, Mohammed A. A.; Onaizi, Sagheer A.

doi:10.1016/j.jece.2020.103968

Cited by 50 publications

(9 citation statements)

References 56 publications

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“…Magnesium oxide has been utilized for macromolecular adsorption, with macromolecules such as single-strand DNA-binding protein (SSBP), nucleic acid, and oleic acid, along with enhanced small-molecule adsorption, with small molecules such as curcumin, dopamine, and sucrose . Similarly, CO 2 capture capacity matches well with previously reported literature studies. , …”

Section: Introductionsupporting

confidence: 81%

“…Although these capture capacities are small compared to the highest reported CO 2 capture value (6.9 mmol/g), different materials are used rather than carbon . Up to now, mostly carbon has been used for the CO 2 capture and very few reports using materials other than carbon exist. , Ruhaimi et al have done a review on CO 2 capture on mesoporous magnesium oxide synthesized via different procedures . The maximum capacity at ambient temperature for the sol–gel method was found to be ∼0.6 mmol/g, which is comparable to the synthesized mesoporous magnesium oxide C 2 -O-SS-Mg-350-3h sample.…”

Section: Discussionmentioning

confidence: 97%

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Synthesis of Highly Porous Metal Oxide Nanoparticles for Adsorption Applications

Shubhashish

Amin

Dang

et al. 2022

ACS Appl. Nano Mater.

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Herein, we report a general and straightforward synthesis method for large-pore highly mesoporous metal oxide nanoparticles via a modified inverse micelle formation. The role of diols as solvents has been demonstrated and extended to other metal oxides using ethylene glycol. After scanning most of the metals from the periodic table, magnesium and calcium from the s-block; tin from the p-block; vanadium, nickel, zinc, zirconium, and hafnium from the d-block; and lanthanum and cerium from the f-block elements, all these have been successfully synthesized as large-pore-diameter metal oxides. Because of thermodynamic stability of chelate formation, ethylene glycol, 1,3-propanediol, 1,4-butanediol, and 1,5-pentanediol give a higher pore diameter, whereas a further increase in the diol carbon chain (1,6-hexanediol and 1,12-dodecandiol) leads to pore contraction. By varying the synthesis temperature, the effect of viscosity on the pore diameter has also been demonstrated. Potential applications of oxides of magnesium have been tested for carbon dioxide capture and adsorption of macromolecules such as proteins and lipids and small molecules such as curcumin, dopamine, and sucrose. As predicted, larger-pore-diameter and higher-pore-volume mesoporous magnesium oxide shows higher carbon dioxide capture and adsorption compared to commercial magnesium oxide. A mechanism for the higher pore diameters of mesoporous metal oxide nanomaterials has been proposed based on the results and previous reported literature studies.

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Section: Introductionsupporting

confidence: 81%

Section: Discussionmentioning

confidence: 97%

Synthesis of Highly Porous Metal Oxide Nanoparticles for Adsorption Applications

Shubhashish

Amin

Dang

et al. 2022

ACS Appl. Nano Mater.

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“…This adsorbent includes MgO modified with 3-aminopropyl-triethoxysilane (APTES), diethylenetriamine (DETA), and polyethylenimine (PEI), MgO prepared by a solid–state reaction, and CeO 2 . This adsorbent also includes adsorbents derived from waste materials, such as “glass industry waste: waste SiO 2 and waste Al 2 O 3 ,” for the circular economy and waste management approach. − Therefore, it is not surprising that our samples, which were prepared by mixing Mg(OH) 2 with different wt % of NH 4 F·HF, particularly those containing 20–30% F, whether calcined at 400 or 500 °C, demonstrated a high capacity in capturing a large number of CO 2 molecules in a short period of time (1 h), see Table , at different temperatures of 5 and 30 °C.…”

Section: Resultsmentioning

confidence: 99%

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO₂ at Different Temperatures under Ambient Pressure

et al. 2022

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The utilization of Mg−O−F prepared from Mg(OH) 2 mixed with different wt % of F in the form of (NH 4 F•HF), calcined at 400 and 500 °C, for efficient capture of CO 2 is studied herein in a dynamic mode. Two different temperatures were applied using a slow rate of 20 mL•min −1 (100%) of CO 2 passing through each sample for only 1 h. Using the thermogravimetry (TG)-temperature-programed desorption (TPD) technique, the captured amounts of CO 2 at 5 °C were determined to be in the range of (39.6−103.9) and (28.9−82.1) mg COd 2 •g −1 for samples of Mg(OH) 2 mixed with 20−50% F and calcined at 400 and 500 °C, respectively, whereas, at 30 °C, the capacity of CO 2 captured is slightly decreased to be in the range of (32.2−89.4) and (20.9− 55.5) mg COd 2 •g −1 , respectively. The thermal decomposition of all prepared mixtures herein was examined by TG analysis. The obtained samples calcined at 400 and 500 °C were characterized by X-ray diffraction and surface area and porosity measurements. The total number of surface basic sites and their distribution over all samples was demonstrated using TG-and differential scanning calorimetry-TPD techniques using pyrrole as a probe molecule. Values of (ΔH) enthalpy changes corresponding to the desorption steps of CO 2 were calculated for the most active adsorbent in this study, that is, Mg(OH) 2 + 20% F, at 400 and 500 °C. This study's findings will inspire the simple preparation and economical design of nanocomposite CO 2 sorbents for climate change mitigation under ambient conditions.

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“…This result suggested that the proposed adsorbent is robust, durable, and reusable. Moreover, the adsorbent can be regenerated at a relatively low temperature as compared to other adsorbents. ,− …”

Section: Resultsmentioning

confidence: 99%

From Hazardous Waste to Green Applications: Selective Surface Functionalization of Waste Cigarette Filters for High-Performance Robust Triboelectric Nanogenerators and CO₂ Adsorbents

Roy

Das

Ghosh

et al. 2022

ACS Appl. Mater. Interfaces

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This article reports a novel and rational approach to convert waste cigarette filters (CFs), one of the largest sources of ocean pollution, into high-performance triboelectric nanogenerators (TENGs) and efficient CO2-capturing adsorbents. CFs are plasticized cellulose acetate, which take several years to degrade. To revalorize these fibers, selective amine surface functionalization is performed (10PAL-20T-CFs). For the proof of concept, when the modified fibers are employed in a TENG, it could generate an output voltage (96.63 V) and current (9.37 μA) that are, respectively, 43 and 8 times higher than those obtained employing the pristine CFs for the nanogenerator. The proposed TENG displays an instantaneous peak power of 3.75 mW, which is higher than that of many recently reported TENGs made from cellulose materials. Moreover, the TENG displayed outstanding durability to humidity and high-performance stability when it is subjected to cyclic loading (i.e., 12,000 cycles of loading–unloading). A 9 cm2 TENG could effectively light up 100 or more colored light-emitting diodes when it is manually pressed. Finally, the modified filter fibers show an excellent CO2 adsorption capacity of 1.93 mmol/g, which is 9.2 times higher than that obtained using the pristine fibers. These results demonstrate that hazardous wastes such as CFs can be upcycled into valuable resources.

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Novel Amine-Functionalized Magnesium Oxide Adsorbents for CO2 Capture at Ambient Conditions

Cited by 50 publications

References 56 publications

Synthesis of Highly Porous Metal Oxide Nanoparticles for Adsorption Applications

Synthesis of Highly Porous Metal Oxide Nanoparticles for Adsorption Applications

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO₂ at Different Temperatures under Ambient Pressure

From Hazardous Waste to Green Applications: Selective Surface Functionalization of Waste Cigarette Filters for High-Performance Robust Triboelectric Nanogenerators and CO₂ Adsorbents

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Novel Amine-Functionalized Magnesium Oxide Adsorbents for CO2 Capture at Ambient Conditions

Cited by 50 publications

References 56 publications

Synthesis of Highly Porous Metal Oxide Nanoparticles for Adsorption Applications

Synthesis of Highly Porous Metal Oxide Nanoparticles for Adsorption Applications

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO2 at Different Temperatures under Ambient Pressure

From Hazardous Waste to Green Applications: Selective Surface Functionalization of Waste Cigarette Filters for High-Performance Robust Triboelectric Nanogenerators and CO2 Adsorbents

Contact Info

Product

Resources

About

Mg–O–F Nanocomposite Catalysts Defend against Global Warming via the Efficient, Dynamic, and Rapid Capture of CO₂ at Different Temperatures under Ambient Pressure

From Hazardous Waste to Green Applications: Selective Surface Functionalization of Waste Cigarette Filters for High-Performance Robust Triboelectric Nanogenerators and CO₂ Adsorbents