CO 2 capture performance of bi-functional activated bleaching earth modified with basic-alcoholic solution and functionalization with monoethanolamine: isotherms, kinetics and thermodynamics

Pongstabodee, Sangobtip; Pornaroontham, Phuwadej; Pintuyothin, Nuthapol; Pootrakulchote, Nuttapol; Thouchprasitchai, Nutthavich

doi:10.1016/j.jes.2015.09.028

Cited by 10 publications

(9 citation statements)

References 41 publications

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“…The vibrational bands of the C–O group appeared at 1057 cm –1 (Figure S3). These IR data clearly indicate that ethanolaminium molecules are located in the framework, which is highly consistent with literature results …”

Section: Resultssupporting

confidence: 92%

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Selectively Photocatalytic Activity of an Open-Framework Chalcogenide Built from Corner-Sharing T4 Supertetrahedral Clusters

2019

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The photocatalysis process with high selectivity is a very important research forefront for the semiconductor photocatalytic decomposition of organic pollutants. However, the rational design of efficient photocatalysts with high selectivity is still a challenge. Here, we present an openframework chalcogenide (Heta) 8 [In 14 Sn 2 Zn 4 Se 33 ] (Heta = ethanolamine-H + ) (compound 1) constructed from T4 supertetrahedral clusters [In 14 Sn 2 Zn 4 Se 35 ] 12− with visiblelight-driven selectively photocatalytic degradation activity. Single-crystal XRD analysis shows that compound 1 crystallizes in I4 1 /acd (no. 142) space group, with a = b = 24.3462(2) Å, c = 45.0062(9) Å, V = 26676.9(7) Å 3 , and Z = 8. Under visible-light irradiation, the selectively photocatalytic activities of 1 were evaluated by photodegradation of two kinds of cationic dye molecules, i.e., methylene blue (MB) and rhodamine B (RhB), against two anionic dyes, methyl orange (MO) and Kermes red (KR), with different sizes. We show that the adsorption capability and charge-matching between organic dyes and the supertetrahedral cluster together with a suitable band structure make it an excellent and selective photocatalyst. This is the first example of an open-framework chalcogenide based on supertetrahedral T4 for the selectively semiconductor photocatalytic decomposition of organic dyes.

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Section: Resultssupporting

confidence: 92%

“…These IR data clearly indicate that ethanolaminium molecules are located in the framework, which is highly consistent with literature results. 35 TG Analysis. Figure S4 of a TG curve shows that the loss of ∼10.0% (calcd as 9.5%) corresponds to the removal of ethanolaminium below ∼336 °C.…”

Section: ■ Introductionmentioning

confidence: 99%

Selectively Photocatalytic Activity of an Open-Framework Chalcogenide Built from Corner-Sharing T4 Supertetrahedral Clusters

2019

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“…CO 2 removal is essential to prevent pipes and equipment corrosion in the presence of moisture and reduce transport cost (Kang et al., 2017; Song et al., 2017). Alkaloamines aqueous solutions is the most widely used technique for separating CO 2 from natural gas (Pino et al., 2016; Pongstabodee et al., 2016). However, it presents some drawbacks such as high cost for requiring large equipment and high energy to regenerate, chemical and oxidative degradation by the reaction with impurities, in addition to producing corrosive products (Huang et al., 2018; Kothandaraman et al., 2009; Thouchprasitchai et al., 2017; Ünveren et al., 2017).…”

Section: Introductionmentioning

confidence: 99%

Supported ionic liquids as highly efficient and low-cost material for CO2/CH4 separation process

Polesso

Bernard

Ferrari

et al. 2019

Heliyon

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Physical immobilization of ionic liquids (ILs) in solid materials appears as an interesting strategy for the development of new sorbents for CO 2 separation from natural gas. In this work the effect of physical immobilization of two ionic liquids with different anions (bmim[Cl] and bmim[OAc]) on two mesoporous supports (commercial silica SBA-15 and silica extracted from rice husk) was evaluated for CO 2 separation from natural gas by experimental determination of CO 2 sorption, CO 2 /CH 4 selectivity and sorption kinetics. Results showed that the pure supports present the greatest CO 2 sorption capacity when compared to immobilized ILs. However, CO 2 removal efficiency improves considerably in the CO 2 /CH 4 mixture when ILs are immobilized in these supports. The best selectivity results were obtained for supports immobilized with the IL bmim[Cl] and values increased for SIL-Cl by 37% and SBA-Cl 51% when compared with their respective supports. The contribution of SIL-Cl (3.03 ± 0.12) to separation performance (CO 2 /CH 4 ) is similar to SBA-Cl (3.29 ± 0.39). ILs supported also presented fast sorption kinetics when compared to pure ILs thus being an interesting alternative in the search for highly efficient and low-cost separation processes.

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“…From Figure 1 (RSBE_400, RSBE_500 and RSBE_650), the second weight loss phase (150-400 °C) approaches a linear profile with weight loss of 2.9%, 2.4%, and 2.5%, respectively. However, in the third phase (400-650 °C), RSBE_400 shows a drastic weight loss of about 5.7% when compared to RSBE_500 (2.5%) and RSBE_650 (1.9%), indicating that the interlayer water was not entirely eliminated by the adsorbent's calcination at 400 °C [25]. In the fourth phase, RSBE_400, RSBE_500 and RSBE_650 lose weight at nearly identical rates of 4.9%, 4.8% and 4.3%, respectively.…”

Section: Characterization Of Sbe and Rsbementioning

confidence: 97%

“…As seen in Figure 1, the higher the calcination temperature, the smaller the weight loss. Below 150 °C, the TGA curves of RSBE_400, RSBE_500, RSBE_650 and RSBE_800 exhibited a weight loss of about 4.0%, 4.2%, 3.3% and 2.0%, respectively, due to the dehydration of the surface water molecules that might be happened during the storage of the adsorbent [25]. From Figure 1 (RSBE_400, RSBE_500 and RSBE_650), the second weight loss phase (150-400 °C) approaches a linear profile with weight loss of 2.9%, 2.4%, and 2.5%, respectively.…”

Section: Characterization Of Sbe and Rsbementioning

confidence: 99%

Application of regenerated spent bleaching earth as an adsorbent for the carbon dioxide adsorption by gravimetric sorption system

Phey

Abdullah

Ahmad

et al. 2022

J. Phys.: Conf. Ser.

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The atmospheric level of carbon dioxide (CO2) is indicated to be alarming which in turn has contributed to the worldwide environmental issue such as global warming. The goal of this project was to study the adsorption of CO2 onto regenerated spent bleaching earth (RSBE). Spent bleaching earth (SBE) can be a good adsorbent but it has the weakness in surface area due to the organic impurities left in the pores after being generated from the edible oil processing. Thus, the regeneration processes of SBE by (a) direct heat treatment, and (b) heat treatment followed by nitric acid treatment were studied to enhance the surface area, thus increasing the CO2 adsorption capacity. The SBE were calcined at four temperatures of 400, 500, 650 and 800 °C in the regeneration process. The surface properties of RSBE were characterized using Thermogravimetric Analysis (TGA), Fourier Transform Infrared (FTIR) analysis and Brunauer–Emmett–Teller (BET) surface area analysis. The CO2 adsorption capacity on RSBE produced by heat treatment followed by nitric acid treatment was shown to be more effective than RSBE produced by direct heat treatment. RSBE_500_HNO3 offered highest surface area (192.81 m2/g) and give highest CO2 adsorption capacity of 86.67 mg CO2/g. In comparison to the low pressure condition, the high pressure CO2 adsorption values recorded for both RSBE were significantly better.

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CO 2 capture performance of bi-functional activated bleaching earth modified with basic-alcoholic solution and functionalization with monoethanolamine: isotherms, kinetics and thermodynamics

Cited by 10 publications

References 41 publications

Selectively Photocatalytic Activity of an Open-Framework Chalcogenide Built from Corner-Sharing T4 Supertetrahedral Clusters

Selectively Photocatalytic Activity of an Open-Framework Chalcogenide Built from Corner-Sharing T4 Supertetrahedral Clusters

Supported ionic liquids as highly efficient and low-cost material for CO2/CH4 separation process

Application of regenerated spent bleaching earth as an adsorbent for the carbon dioxide adsorption by gravimetric sorption system

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