CO<sub>2</sub>adsorption properties of ion-exchanged zeolite Y prepared from natural clays

Djeffal, Nadjiba; Benbouzid, Mohammed; Boukoussa, Bouhadjar; Sekkiou, H.; Bengueddach, Abdelkader

doi:10.1088/2053-1591/aa6465

Cited by 24 publications

(8 citation statements)

References 38 publications

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“…Pour et al (2016) [61] also synthesized A-zeolite, using a montmorillonite as a starting clay, reaching an excellent CO 2 adsorption of about 220 mg CO 2 /g, with a high selectivity in mixtures of CO 2 /CH 4 at 1 bar of pressure, although an increase of the pressure causes a decrease of the selective adsorption. On the other hand, kaolinite has been also used as a starting material to obtain a microporous Y-zeolite, obtaining zeolite with a high CO 2 adsorption capacity (138 mg CO 2 /g at 0 • C and a pressure of 1 bar) [62]. In the same way, Thakkar et al (2017) [63] synthesized several zeolites from kaolinite, reaching a CO 2 adsorption of 13 mg CO 2 /g for ZSM-5, 40 mg CO 2 /g for Y-zeolite and 26 mg CO 2 /g for SAPO-34.…”

Section: Co 2 Adsorption Of Materials Synthesized From Clay Mineralsmentioning

confidence: 99%

CO2 Adsorption of Materials Synthesized from Clay Minerals: A Review

et al. 2019

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The aim of this work is to make a brief review of the adsorption of CO2 on modified clay minerals. Previous researchers have used different clay modifications, either by making changes in the structure by a reaction with another product or by the addition of a catalyst to improve their CO2 adsorption capacity. In order to obtain high values of CO2 uptake, some researchers have been incorporated amines-speices such as (3-aminopropyl)triethoxysilane (APTES), tetraethylenepentamine (TEPA) and a branched polyethylenimine (PEI) by grafting or impregnation. The synthesis of an adsorbent from mineral clays can generate an increase in its porosity and in its textural properties. These investigations differ in a number of factors such as the kind of clay, the operating conditions, y and the nature of the impregnated compound. The role of these factors in the CO2 adsorption capacity will be considered in detail in this review.

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Section: Co 2 Adsorption Of Materials Synthesized From Clay Mineralsmentioning

confidence: 99%

CO2 Adsorption of Materials Synthesized from Clay Minerals: A Review

et al. 2019

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“…This was evidenced by the shift of Si─O─Al vibration from 983 to 1002 cm −1 before and after the reaction. The high‐temperature environment also changed the band around 3000–3700 cm −1 , which corresponds to the characteristic band of Si─OH, or adsorbed water 20 . Although most of the stretching and vibrational bands were also observed at the same positions in samples after the reactions, there is one additional band that was observed at 1498 cm −1 which corresponds to stretching vibration of carbon–carbon double bonds (C═C) in aromatic molecules 21 .…”

Section: Resultsmentioning

confidence: 97%

The catalytic decomposition of carbon dioxide on zinc‐exchanged Y‐zeolite at low temperatures

Bajaj

Selvakannan

Singh

et al. 2021

J of Chemical Tech & Biotech

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BACKGROUND We report our recent study on the use of a zinc‐modified NaY zeolite to decompose CO2 at a temperature range between 300 and 550 °C. RESULTS At a reaction temperature of 450 °C, we observed that 70% of CO2 was converted with an insignificant quantity of CO produced. Scanning electron microscopy and Fourier transform infrared spectroscopic analysis of the neat and spent catalysts confirmed the presence of carbon nanostructures after the reaction. In addition to this, CHN analysis supports these results by providing weight percent (0.73 wt%) of carbon after reaction. Stability of the catalyst was further confirmed with slight/no change in X‐ray diffraction technique. CONCLUSION This route potentially offers a facile strategy to achieve CO2 decomposition and an explanation of the formation of carbon on zinc‐modified zeolite catalysts. © 2021 Society of Chemical Industry (SCI).

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“…The results suggest that the synthetic zeolites have a significant affinity for CO 2 and can also be related to the textural properties of zeolites as well as SAR. [110,111] The acidic/basic character of the zeolites influences the CO 2 adsorption process. [112] Zeolites with greater basicity favour the adsorption of polar molecules like CO 2 .…”

Section: Characterization Synthesis Of Zeolite Ymentioning

confidence: 99%

Hydrothermal synthesis of zeolite Y from green materials

et al. 2021

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Several probes have been conducted by the scientific community to reduce emissions of greenhouse gases such as carbon dioxide (CO 2 ). A zeolitic material is capable of CO 2 adsorption with the aid of such technologies. Our present work is to efficiently synthesize zeolite Y with four Si/Al ratios (2.0, 2.5, 3.0, and 3.5) from green materials such as rice husk ash (source of Si) and metakaolin (source of Al). The method for preparing zeolite Y involves hydrothermal synthesis in a hydrodynamic reactor at 120 C temperature, for a reaction time of 24 hours. These synthetic zeolites represent high values for surface area as well as pore volume in micropore range and are compatible with the size of CO 2 molecules. The zeolite Y (with Si/Al ratio 3.5) has an absorption capacity of 3.35 mmol CO 2 /g at (900 kPa) pressure, thereby

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CO₂adsorption properties of ion-exchanged zeolite Y prepared from natural clays

Cited by 24 publications

References 38 publications

CO2 Adsorption of Materials Synthesized from Clay Minerals: A Review

CO2 Adsorption of Materials Synthesized from Clay Minerals: A Review

The catalytic decomposition of carbon dioxide on zinc‐exchanged Y‐zeolite at low temperatures

Hydrothermal synthesis of zeolite Y from green materials

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CO2adsorption properties of ion-exchanged zeolite Y prepared from natural clays

Cited by 24 publications

References 38 publications

CO2 Adsorption of Materials Synthesized from Clay Minerals: A Review

CO2 Adsorption of Materials Synthesized from Clay Minerals: A Review

The catalytic decomposition of carbon dioxide on zinc‐exchanged Y‐zeolite at low temperatures

Hydrothermal synthesis of zeolite Y from green materials

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Product

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CO₂adsorption properties of ion-exchanged zeolite Y prepared from natural clays