Adsorption of carbon dioxide on organically functionalized SBA-16

Wei, Jianwen; Shi, Jingjin; Pan, Hua; Zhao, Wei; Ye, Qing; Shi, Yao

doi:10.1016/j.micromeso.2008.04.028

Cited by 130 publications

(88 citation statements)

References 28 publications

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“…Furthermore, 3N-APS-SBA-15 was reported to be stable over 50 cycles for the adsorption at 60°C and the desorption at 100°C. The effect of boiling water pretreatment on silica supports was also investigated by Wei et al (2008) who observed that the surface Si-O-Si bonds were hydrolyzed after the boiling water pretreatment, as a result, more Si-OH groups were generated for aminosilanes grafting.…”

Section: Amine-grafted Adsorbentmentioning

confidence: 99%

A Review of CO2 Capture by Absorption and Adsorption

Huang

Tan

2012

Aerosol Air Qual. Res.

1,457

875

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Global warming resulting from the emission of greenhouse gases, especially CO 2 , has become a widespread concern in the recent years. Though various CO 2 capture technologies have been proposed, chemical absorption and adsorption are currently believed to be the most suitable ones for post-combustion power plants. The operation of the chemical absorption process is reviewed in this work, together with the use of absorbents, such as the ionic liquid, alkanolamines and their blended aqueous solutions. The major concerns for this technology, including CO 2 capture efficiency, absorption rate, energy required in regeneration, and volume of absorber, are addressed. For adsorption, in addition to physical adsorbents, various mesoporous solid adsorbents impregnated with polyamines and grafted with aminosilanes are reviewed in this work. The major concerns for selection of adsorbent, including cost, adsorption rate, CO 2 adsorption capacity, and thermal stability, are compared and discussed. More effective and less energy-consuming regeneration techniques for CO 2 -loaded adsorbents are also proposed. Future works for both absorption and adsorption are suggested.

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Section: Amine-grafted Adsorbentmentioning

confidence: 99%

A Review of CO2 Capture by Absorption and Adsorption

Huang

Tan

2012

Aerosol Air Qual. Res.

1,457

875

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“…1 shows the powder XRD patterns of RSBA-16 samples prepared under various Surf/Si molar ratios. For the RSBA-16 samples, all of the XRD patterns showed one distinct diffraction reflection at 2θ value of 0.73-0.83°, which could be indexed as (1 1 0) reflection corresponding to a cubic Im3m structure (Hwang et al, 2004;Wei et al, 2008). It is found that the crystallinity of RSBA-16 samples was very sensitive to the Surf/Si molar ratio of the initial gel mixture.…”

Section: Characterization Of Rsba-16mentioning

confidence: 93%

“…The molar composition of gel mixture was 1 SiO 2 : 0.004 F127: 3 NaCl: 110 H 2 O: 3.4 HCl. Detailed synthetic information for the synthesis of SBA-16(TEOS) can be referred to the literature (Wei et al, 2008).…”

Section: Synthesis Of Adsorbentsmentioning

confidence: 99%

“…Moreover, there are also a large number of micropores across the silica walls in SBA-16 (Van Der Voort et al, 2002). These unique properties together with its good thermal stability of the thick wall and economical synthesis with inexpensive pore templates may make SBA-16 an attractive adsorbent for the environmental protection applications (Wei et al, 2008;Chaudhuri et al, 2016). Nevertheless, unlike the hexagonal form of SBA-15, the cubic form of SBA-16 mesoporous silica received much less attention.…”

Section: Introductionmentioning

confidence: 99%

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Adsorption/Desorption Behaviors of Acetone over Micro-/Mesoporous SBA-16 Silicas Prepared from Rice Husk Agricultural Waste

Zeng

Bai

2016

Aerosol Air Qual. Res.

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The preparation of micro-/mesoporous SBA-16 adsorbent by rice husk derived sodium silicate as the silica source and its acetone adsorption/desorption behaviors were reported for the first time. The pore structural properties of waste-derived SBA-16 materials were controlled and optimized by adjusting the surfactant/silica molar ratios from 0.002 to 0.01 for achieving the best acetone adsorption performance. And the relationship between structural properties and acetone adsorption performances of SBA-16 adsorbents was investigated. The resultant waste-derived SBA-16 materials, denoted as RSBA-16, had specific surface areas of 575-1001 m 2 g -1 , pore sizes of 3.3-3.7 nm and pore volumes of 0.41-0.72 cm 3 g -1 . Among the studied adsorbents, RSBA-16(0.004) exhibited the highest saturated acetone adsorption capacity of 179 mg g -1 . It also showed excellent regeneration stability during 20 consecutive cycles. The results indicated that specific surface areas in both micro-and meso-pore ranges were the main factor that determined the superiority of acetone adsorption capacity of RSBA-16(0.004) over other adsorbents such as mesoporous RMCM-41 and micro-/mesoporous RSBA-15. The acetone adsorption experiments at 500-5000 ppmv demonstrated that the adsorption isotherm was well fitted with the Langmuir model, thus the adsorption of acetone on RSBA-16 might be a monolayer physisorption process. The results demonstrated the high adsorption capacity and cyclic stability of waste-derived RSBA-16(0.004) can be considered as a potential adsorbent for VOCs removals.

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“…Interestingly, the irreversible adsorbed amount is suddenly increased to 0.58 molecules/nm 2 at n AE = 0.56. It has been reported that the surface aminopropyl groups on silica gels functionalized with aminopropylsilnane act as a strong adsorption site for CO 2 to generate alkylammonium carbonate 28,29) . Besides, Hiyoshi et al indicated that the densely aminosilane which affords an amine pair is an effective adsorption site for CO 2 28) .…”

Section: Surface Structure and Property Of Pea-grafted Hapmentioning

confidence: 99%

Preparation and Surface Characterization of Calcium Hydroxyapatite Grafting of Phosphoethanolamine

Tanaka

Uchida

2010

Phosphorus Research Bulletin

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Calcium hydroxyapatite (Ca 10 (PO 4 ) 6 (OH) 2 : Hap) particles grafting of O-phosphoethanolamine (NH 2 (CH 2 ) 2 OPO 3 H 2 : PEA) were prepared by a coprecipitation method with a mixture of Ca(OH) 2 , H 3 PO 4 and PEA at different PEA/(PEA+H 3 PO 4 ) molar ratios in aqueous media at 85°C. The crystallinity and particle size of Hap were decreased with an increase of PEA/(PEA+H 3 PO 4 ) ratio, revealing that the crystal and particle growth of Hap were inhibited by grafting of PEA. The surface aminoethyl groups were generated by substituting the surface PO 4 3-of Hap with PEA ions, giving rise to the decrease of surface P-OH groups of Hap. The number of surface aminoethyl groups was increased with increasing the PEA/(PEA+H 3 PO 4 ) ratio and was ranged from 0.08 to 0.56 molecules/nm 2 . The surface aminoethyl groups would act as the irreversible adsorption sites of CO 2 .

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Adsorption of carbon dioxide on organically functionalized SBA-16

Cited by 130 publications

References 28 publications

A Review of CO2 Capture by Absorption and Adsorption

A Review of CO2 Capture by Absorption and Adsorption

Adsorption/Desorption Behaviors of Acetone over Micro-/Mesoporous SBA-16 Silicas Prepared from Rice Husk Agricultural Waste

Preparation and Surface Characterization of Calcium Hydroxyapatite Grafting of Phosphoethanolamine

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