Carbon dioxide adsorption on micro-mesoporous composite materials of ZSM-12/MCM-48 type: The role of the contents of zeolite and functionalized amine

Santos, Silvia C. G.; Pedrosa, Anne Michelle Garrido; Souza, M. J. B.; Cecilia, Juan Antonio; Rodríguez‐Castellón, Enrique

doi:10.1016/j.materresbull.2015.05.037

Cited by 24 publications

(9 citation statements)

References 58 publications

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“…14,31 One of the main advantages of porous silicas is that it is relatively easy to modulate its pore size, ordering and surface chemistry. 32 Thus, there are numerous reports in the literature aiming at pure CO 2 adsorption by several amine-modified silicas such as SBA-15, 18,33−35 MCM-41, 36,37 MCM-48, 38 KIT-6, 39 MCF, 40−43 or HMS. 44−46 Hollow microspheres of silica (HMS), for instance, are made up of homogeneous 1−2 μm spherical particles with small nanochannels of about 2 nm in the silica walls.…”

Section: Introductionmentioning

confidence: 99%

“…Because amine binding to the solid surface takes place by means of a chemical reaction, these adsorbents are thermally stable in comparison to those obtained by other methodologies. , These amine-grafted adsorbents usually show enhanced selectivity, reasonable uptakes ,− and good H 2 O resistance, which even improves the CO 2 adsorption capacity in some cases. , One of the main advantages of porous silicas is that it is relatively easy to modulate its pore size, ordering and surface chemistry . Thus, there are numerous reports in the literature aiming at pure CO 2 adsorption by several amine-modified silicas such as SBA-15, ,− MCM-41, , MCM-48, KIT-6, MCF, − or HMS. − Hollow microspheres of silica (HMS), for instance, are made up of homogeneous 1–2 μm spherical particles with small nanochannels of about 2 nm in the silica walls. These nanochannels can be expanded to the meso range by adding swelling agents such as 1,3,5-trimethylbenzene, leading to the formation of mesopores or even structured mesopores in the silica walls of the microspheres.…”

Section: Introductionmentioning

confidence: 99%

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H₂S and H₂O Combined Effect on CO₂ Capture by Amino Functionalized Hollow Microsphere Silicas

Sousa

Amâncio

Morales-Ospino

et al. 2021

Ind. Eng. Chem. Res.

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Hollow microspheres of silica were synthesized and functionalized with amino groups to enhance carbon dioxide adsorption. Functionalization was intended to provide acid–base interaction between CO2 and amine groups. Samples were characterized by N2 adsorption/desorption isotherms at 77 K, X-ray diffraction, scanning electronic microscopy, and Fourier transform infrared spectroscopy. For adsorption experiments, both volumetric and gravimetric devices were used to quantify adsorbed CO2 as a function of pressure and temperature. CO2 adsorption isotherms obtained for the amine grafted silica confirmed the coexistence of chemical and physical adsorption sites within the material, which means that CO2 binding occurs not only by physical mechanisms on micropores but also due to interactions with amino groups. The saturation of the adsorbent with H2S to simulate the purification of natural gas or biogas slightly diminishes CO2 adsorption capacity due to competition between CO2 and H2S for amine sites. Preadsorption of H2O on the H2S saturated adsorbent did not lead to improvements in CO2 uptake. On the contrary, preloaded H2O combined with H2S seems to block some of the chemical sites involved in CO2 adsorption.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

H₂S and H₂O Combined Effect on CO₂ Capture by Amino Functionalized Hollow Microsphere Silicas

Sousa

Amâncio

Morales-Ospino

et al. 2021

Ind. Eng. Chem. Res.

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“…Zeolites are crystalline, microporous materials with large surface areas and molecular size pore structure. Therefore, they are commercially important and widely used in applications such as separation, purification, ion exchange and catalysis [2][3][4]. For example, the removal of CO 2 from natural gas streams can be carried out using the different kinds of zeolites adsorbents (i.e., type T zeolites, type X zeolites, type A zeolites) [5][6][7][8].…”

Section: Introductionmentioning

confidence: 99%

Adsorption characteristics analysis of CO2 and N2 in 13X zeolites by molecular simulation and N2 adsorption experiment

Chen

Huang

et al. 2016

J Porous Mater

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The adsorption characteristics of CO 2 and N 2 in 13X zeolites have been studied by the molecular simulation and N 2 adsorption experiment. It is found that the simulation results by Dreiding force fields are in an agreement with the published data. The influence of the r and e parameters of O Z and Na ? on the adsorption performance is discussed. Then the optimized force field parameters are obtained. Specific surface area (S B ) is calculated by simulation and experiment. Its relative error is just only 4.3 %. Therefore, it is feasible that S B of 13X zeolites is obtained by the simulation methods. Finally, the impacts of pressure and temperature on adsorption characteristics are investigated. At low pressure, CO 2 adsorption in 13X zeolites belongs to the surface adsorption. As the pressure increase, the partial multilayer adsorption appears along with the surface adsorption. N 2 adsorption in 13X zeolites is different from that of CO 2 . At low temperature of 77 K, two primary peaks are caused by the surface adsorption and multilayer adsorption respectively regardless of pressure variation. When the temperature is 273 K, the energy distribution curve appears undulate at low pressures. Then it becomes stable with the pressure increase. The surface adsorption plays an important role at the relative high pressures. The results will help to provide the theory guide for the optimization of force field parameters of adsorbents, and it is very important significance to understand the adsorption performance of zeolites.

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“…The unique hierarchical pore structure can provide better conditions for amine loading and gas transmission. Santos et al 54 synthesized a hierarchical porous material ZSM-12/MCM-48 with a microporous− mesoporous structure and further modified it by grafting with 3-aminopropyltriethoxysilane (APTS), which endowed the material with excellent CO 2 adsorption. performance.…”

Section: Molecular Sievesmentioning

confidence: 99%

Review on Multidimensional Adsorbents for CO₂ Capture from Ambient Air: Recent Advances and Future Perspectives

Shi

Zhao

2023

Energy Fuels

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The urgency of curbing global warming triggered by growing CO 2 emissions has generated significant attention. Direct air capture (DAC) is a crucial and feasible technology to cut CO 2 emissions at nonpoint sources, therefore achieving negative emissions. Solid porous sorbents have drawn increasing attention for CO 2 capture from the atmosphere with ultralow CO 2 concentration (ca. 400 ppm). However, most related studies focus on nanoparticle-based adsorbents and their functionalized counterparts, which are more prone to lose weight in the atmosphere. In this context, we summarize nanoparticle composite adsorbents, including zero-dimensional powders, one-dimensional fibers, two-dimensional membranes, and three-dimensional aerogels, and assess the physicochemical properties and typical applications of major types of nanoporous adsorbents in the field of CO 2 adsorption and separation with emphasis on DAC. The multidimensions of emerging adsorbents versus CO 2 uptake are discussed and compared separately. Combined with recent reported advances, we provide deep insights for the design and synthesis of multifunctional materials for efficient CO 2 adsorption. Moreover, life cycle and technoeconomic assessments of DAC using different materials are briefly estimated. Finally, challenges and current trends in the DAC system for commercialization have been put forward.

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Carbon dioxide adsorption on micro-mesoporous composite materials of ZSM-12/MCM-48 type: The role of the contents of zeolite and functionalized amine

Cited by 24 publications

References 58 publications

H₂S and H₂O Combined Effect on CO₂ Capture by Amino Functionalized Hollow Microsphere Silicas

H₂S and H₂O Combined Effect on CO₂ Capture by Amino Functionalized Hollow Microsphere Silicas

Adsorption characteristics analysis of CO2 and N2 in 13X zeolites by molecular simulation and N2 adsorption experiment

Review on Multidimensional Adsorbents for CO₂ Capture from Ambient Air: Recent Advances and Future Perspectives

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Carbon dioxide adsorption on micro-mesoporous composite materials of ZSM-12/MCM-48 type: The role of the contents of zeolite and functionalized amine

Cited by 24 publications

References 58 publications

H2S and H2O Combined Effect on CO2 Capture by Amino Functionalized Hollow Microsphere Silicas

H2S and H2O Combined Effect on CO2 Capture by Amino Functionalized Hollow Microsphere Silicas

Adsorption characteristics analysis of CO2 and N2 in 13X zeolites by molecular simulation and N2 adsorption experiment

Review on Multidimensional Adsorbents for CO2 Capture from Ambient Air: Recent Advances and Future Perspectives

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Product

Resources

About

H₂S and H₂O Combined Effect on CO₂ Capture by Amino Functionalized Hollow Microsphere Silicas

H₂S and H₂O Combined Effect on CO₂ Capture by Amino Functionalized Hollow Microsphere Silicas

Review on Multidimensional Adsorbents for CO₂ Capture from Ambient Air: Recent Advances and Future Perspectives