Effect of ultrasonic irradiation on preparation and properties of ionogels
Open accessAbstract
Silica‐gel matrices containing ionic liquid (IL) 1‐butyl‐3‐methylimidazolium hexafluorophosphate viz. ionogels have been synthesized using one‐pot nonhydrolytic sol‐gel method and taking tetraethyl orthosilicate (TEOS) as starting precursor. Effect of ultrasonic irradiation on pore parameters of ionogels and vibrational properties of the IL upon confinement in the porous matrix has been investigated. The synthesized gels have been characterized by BET, DSC, TGA, and FTIR. BET analysis shows some changes in the pore parameters due to ultrasonic irradiation. DSC results indicate shift in glass transition temperature upon confinement of the IL. The FTIR spectra show changes in vibrational bands on confinement, particularly, the bands related to the imidazolium ring; aliphatic chain and anion PF6 − of the IL are found to shift upon confinement in porous silica matrix obtained due to ultrasonic irradiation. Ultrasonic irradiation has been found to affect the gelation dynamics and kinetics and pore parameters.
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30 s of sonication provided optimum adsorption capacity.
“Our previous study elucidated that 30 s of sonication provided optimum adsorption capacity that was further justified based on the literature (Hamdaoui et al., 2003; Verma et al., 2012).”
From Effect of Pyrolysis Temperature on PhysicoChemical Properties and Acoustic-Based Amination of Biochar for Efficient CO2 Adsorption (2020) · cites this paper as Verma et al., 2012
The Results and Discussion and BET Analysis sections compare ultrasonic power and report changes in gelation time, pore volume, porosity, and surface area. Our copy does not report that 30 seconds of sonication was tested or that it optimized adsorption capacity (searched for the duration and adsorption-capacity terms). (LLM, conf=0.76)
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- Authors
- Verma, Y. L., Singh, M. P., & Singh, R. K.
- Affiliations
- Banaras Hindu University (IN)
- Corresponding author
- Singh, Rajendra Kumar
- Venue
- Journal of Nanomaterials
- Publisher
- Wiley
- Published
- 2012-01
- Volume
- 2012
- Issue
- 1
- ISSN
- 1687-4110 (ISSN-L)
- 1687-4129
- OpenAlex
- W2079037344
- Cited by
- 23
- References
- 29
- Citations by year
- 2024: 2 · 2023: 1 · 2022: 2 · 2021: 2 · 2020: 3 · 2019: 2 · 2018: 2 · 2017: 1 · 2016: 3 · 2015: 2 · 2014: 3
- FWCI
- 0.69
- Type
- journal article
- Language
- en
- Open access
- hybrid
- doi.org
- Licence
- Locations
- Journal of Nanomaterials (publishedVersion, cc-by)
- DOAJ (DOAJ: Directory of Open Access Journals) (submittedVersion, cc-by-sa)
- Funders
- Department of Science and Technology, New Delhi
- Department of Atomic Energy, Government of India
- Topics
- Physical Sciences › Chemical Engineering › Catalysis › Ionic liquids properties and applications
- Physical Sciences › Materials Science › Materials Chemistry › Mesoporous Materials and Catalysis
- Physical Sciences › Chemistry › Spectroscopy › Aerogels and thermal insulation
- Keywords
- ionogels, sonication, ionic liquids, 1-butyl-3-methylimidazolium hexafluorophosphate, silica gel, tetraethoxysilane, non-hydrolytic sol-gel, pore characteristics, glass transition temperature, vibration characteristics, gelation kinetics
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