Simple process for preparing mesoporous sol-gel silica adsorbents with high water adsorption capacities

Mota, Thays Lorrane Rodrigues; Oliveira, Ana Paula Marques de; Nunes, Eduardo H.M.; Houmard, Manuel

doi:10.1016/j.micromeso.2017.07.010

Cited by 34 publications

(10 citation statements)

References 44 publications

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“…At 1105.98 cm –1 , the asymmetric stretching vibration of the Si–O–Si bond was observed. Furthermore, 803.21 and 471.5 cm –1 are the stretching vibration and in-plane bending vibration of the Si–O bond, respectively …”

Section: Resultsmentioning

confidence: 99%

SO₂ Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

et al. 2022

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Ionic liquid desulfurization is an effective method for achieving green and circulating desulfurization. To overcome the negative impact of the high viscosity of ionic liquids on the desulfurization process, an economical and efficient supported ionic liquidtriethanolamine acetate ionic liquid/silica (TAIL/SiO2) was prepared in this study. TAIL is synthesized using triethanolamine and acetic acid and subsequently loaded onto silica gel particles. The effects of the reaction temperature, humidity, silica particle size, and loading ratio on SO2 adsorption are investigated using a fixed-bed reactor. The results indicate that the surface of the silica gel loaded with ionic liquid formed uneven spherical clusters, and the aggregate volume increased with an increase in the loading ratio. The TAIL/SiO2 sulfur capacity could be effectively increased by increasing the loading ratio (exceeding 0.74 is unfavorable), decreasing the silica particle size, and reducing the reaction temperature and moisture content. The maximum sulfur capacity can reach 124.98 mg SO2/(g TAIL/SiO2) under experimental conditions, which is higher than that of activated carbon. The Bangham rate model effectively predicts the kinetics of the adsorption process of SO2.

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Section: Resultsmentioning

confidence: 99%

SO₂ Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

et al. 2022

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“…Then, condensation/polymerization between silanol groups or between silanol groups and ethoxy groups forms a siloxane bridge (Si-O-Si), thereby forming silica structure. Particle size and morphology of SNs could be controlled by altering catalyst type (acid or base) [37,104], pH [38,39], and the type of solvent [105,106].…”

Section: Sol-gel Methodsmentioning

confidence: 99%

“…100 nm to 2 µm by sol-gel method. Several researchers adjusted the size and structure of SNs via sol-gel method by changing the catalyst [36,37], pH [38,39]. Another popular approach for synthesizing SNs is reverse microemulsion method, which was first proposed by Schulman in 1943 [40].…”

Section: Introductionmentioning

confidence: 99%

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

et al. 2021

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Nano-modification of polyester has become a research hotspot due to the growing demand for high-performance polyester. As a functional carrier, silica nanoparticles show large potential in improving crystalline properties, enhancing strength of polyester, and fabricating fluorescent polyester. Herein, we briefly traced the latest literature on synthesis of silica modifiers and the resultant polyester nanocomposites and presented a review. Firstly, we investigated synthesis approaches of silica nanoparticles for modifying polyester including sol-gel and reverse microemulsion technology, and their surface modification methods such as grafting silane coupling agent or polymer. Then, we summarized processing technics of silica-polyester nanocomposites, like physical blending, sol-gel processes, and in situ polymerization. Finally, we explored the application of silica nanoparticles in improving crystalline, mechanical, and fluorescent properties of composite materials. We hope the work provides a guideline for the readers working in the fields of silica nanoparticles as well as modifying polyester.

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“…Generally, silica gel (natural or synthetized) is an ideal support which possesses high surface area and good adsorption properties [20][21][22][23]. On the other hand, silica is strongly hydrophilic and doesn't have good adsorption capacities to remove organic molecules in aqueous solution.…”

Section: Preparation and Characterization Of Pei/sio 2 Compositementioning

confidence: 99%

The valorization of raw and chemically-modified silica residues from Bouillante geothermal power plant (Guadeloupe, FWI) for the removal of methylene blue and lead from aqueous media

Dixit

Ncibi

Bernard

et al. 2020

Journal of Environmental Chemical Engineering

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Simple process for preparing mesoporous sol-gel silica adsorbents with high water adsorption capacities

Cited by 34 publications

References 44 publications

SO₂ Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

SO₂ Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

The valorization of raw and chemically-modified silica residues from Bouillante geothermal power plant (Guadeloupe, FWI) for the removal of methylene blue and lead from aqueous media

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Simple process for preparing mesoporous sol-gel silica adsorbents with high water adsorption capacities

Cited by 34 publications

References 44 publications

SO2 Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

SO2 Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

Emerging Applications of Silica Nanoparticles as Multifunctional Modifiers for High Performance Polyester Composites

The valorization of raw and chemically-modified silica residues from Bouillante geothermal power plant (Guadeloupe, FWI) for the removal of methylene blue and lead from aqueous media

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Product

Resources

About

SO₂ Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization

SO₂ Adsorption and Kinetics Analysis during Supported Triethanolamine Acetate Ionic Liquid Desulfurization