Methylcellulose-Directed Synthesis of Nanocrystalline Zeolite NaA with High CO2 Uptake

Innovative gas capture technologies with the objective to mitigate CO and CH emissions are discussed in this review. Emphasis is given on the use of nanoparticles (NP) as sorbents of CO and CH, which are the two most important global warming gases. The existing NP sorption processes must overcome certain challenges before their implementation to the industrial scale. These are: i) the utilization of the concentrated gas stream generated by the capture and gas purification technologies, ii) the reduction of the effects of impurities on the operating system, iii) the scale up of the relevant materials, and iv) the retrofitting of technologies in existing facilities. Thus, an innovative design of adsorbents could possibly address those issues. Biogas purification and CH storage would become a new motivation for the development of new sorbent materials, such as nanomaterials. This review discusses the current state of the art on the use of novel nanomaterials as adsorbents for CO and CH. The review shows that materials based on porous supports that are modified with amine or metals are currently providing the most promising results. The FeO-graphene and the MOF-117 based NPs show the greatest CO sorption capacities, due to their high thermal stability and high porosity. Conclusively, one of the main challenges would be to decrease the cost of capture and to scale-up the technologies to minimize large-scale power plant CO emissions.

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“…Zeolite NaA nanocrystals with a size of 100 nm presented a high CO2 uptake capacity (220 mg/g at 293 K at 0.1MPa) (Shakarova et al, 2014).…”

Section: Nanosized Zeolites Versus Conventional Zeolitesmentioning

confidence: 99%

Critical review of existing nanomaterial adsorbents to capture carbon dioxide and methane

Alonso

Moral‐Vico

Markeb

et al. 2017

Science of The Total Environment

149

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“…According to the literature, the size of zeolite crystals can be controlled by the amount of MC [42]. The zeolite crystals were denoted as Z-0MC, Z-1MC, and Z-4MC, corresponding to the MC/Al 2 O 3 weight ratio of 0, 1 and 4, respectively.…”

Section: Synthesis Of Zeolite Crystalsmentioning

confidence: 99%

“…Therefore, the zeolite crystals can only grow inside the MC hydrogel networks during hydrothermal synthesis at 80 °C. The size of these networks decrease with increasing the amount of MC[42], which can be used to control the crystal size. MC becomes water-soluble again when synthesis solution is cooled down.…”

mentioning

confidence: 99%

Confined and in-situ zeolite synthesis: A novel strategy for defect reparation over dense Pd membranes for hydrogen separation

Zhang

Bao

et al. 2017

Separation and Purification Technology

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“…Shakarova et al . synthesized zeolite NaA nanocrystals with a narrow particle size distribution by template‐free hydrothermal synthesis in thermo‐reversible methylcellulose gels.…”

Section: A Survey Of Synthesis Routes Of Porous Materials For Co2 Capmentioning

confidence: 99%

Synthesis of bare and functionalized porous adsorbent materials for CO₂ capture

Olajire

2017

Greenhouse Gases

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The ever‐increasing demand for nanostructured composite materials and sustainable processes for next generation CO2 capture technologies has necessitated the need to develop novel and cost‐effective synthetic routes for CO2 adsorbents based on amine and ionic liquid functionalized porous adsorbent materials with improved physico‐chemical properties. The most obvious option is modification of the synthesized porous adsorbent materials by the incorporation of organic functional molecules into the pore structures of support materials, giving place to hybrid materials that combine the properties of both composites. These hybrid materials will be of great potential for practical applications, especially for post‐combustion CO2 capture, owing to the increase in CO2 capturing ability and selectivity to CO2 compared to other gases in the flue gas stream. This paper reviews the diverse synthesis routes of bare porous materials and rich functionalities of porous adsorbent materials which will allow further post‐modification to improve their performance in CO2 capture and increase their CO2/N2 and CO2/CH4 selectivity ratios. © 2017 Society of Chemical Industry and John Wiley & Sons, Ltd.

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Methylcellulose-Directed Synthesis of Nanocrystalline Zeolite NaA with High CO2 Uptake

Cited by 27 publications

References 33 publications

Critical review of existing nanomaterial adsorbents to capture carbon dioxide and methane

Critical review of existing nanomaterial adsorbents to capture carbon dioxide and methane

Confined and in-situ zeolite synthesis: A novel strategy for defect reparation over dense Pd membranes for hydrogen separation

Synthesis of bare and functionalized porous adsorbent materials for CO₂ capture

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Methylcellulose-Directed Synthesis of Nanocrystalline Zeolite NaA with High CO2 Uptake

Cited by 27 publications

References 33 publications

Critical review of existing nanomaterial adsorbents to capture carbon dioxide and methane

Critical review of existing nanomaterial adsorbents to capture carbon dioxide and methane

Confined and in-situ zeolite synthesis: A novel strategy for defect reparation over dense Pd membranes for hydrogen separation

Synthesis of bare and functionalized porous adsorbent materials for CO2 capture

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Product

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Synthesis of bare and functionalized porous adsorbent materials for CO₂ capture