Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity
- Univ. of Connecticut, Storrs, CT (United States). Institute of Materials Science
- Univ. of Connecticut, Storrs, CT (United States). Department of Chemical & Biomolecular Engineering
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Univ. of Connecticut, Storrs, CT (United States). Institute of Materials Science and Department of Mechanical Engineering
- Univ. of Connecticut, Storrs, CT (United States). Department of Chemistry
- Univ. of Connecticut, Storrs, CT (United States). Institute of Materials Science, Department of Chemical & Biomolecular Engineering, and Department of Chemistry
In this work, mesoporous aluminas (MAs) with uniform and monomodal pores were fabricated via a modified inverse micelle synthesis method, using a non-polar solvent (to minimize the effect of water content) and short reaction time (for a fast evaporation process). The effects of reaction times (4–8 h), surfactant chain lengths (non-ionic surfactants), and calcination temperatures and hold times (450–600 °C; 1–4 h) on the textural properties of MA were studied. Additionally, the targeted pore sizes of MA were obtained in the range of 3.1–5.4 nm by adjusting the surfactant and reaction time. The surface area and pore volume were controlled by the calcination temperature and hold time while maintaining the thermal stability of the materials. The tuned MA of the large mesopore volume achieved 168 mg/g octamethylcyclotetrasiloxane (D4 siloxane) adsorption capacity, a 32% improvement compared to commercially activated alumina. Finally, after three adsorption recycles, the synthesized MA still maintained approximate 85% of its original adsorption capacity, demonstrating a sustainable adsorption performance and high potential for related industrial applications.
- Research Organization:
- Brookhaven National Lab. (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC), Basic Energy Sciences (BES)
- Grant/Contract Number:
- SC00112704
- OSTI ID:
- 1347290
- Report Number(s):
- BNL-113560-2017-JA
- Journal Information:
- Microporous and Mesoporous Materials, Vol. 239; ISSN 1387-1811
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Recent advances in technologies for the removal of volatile methylsiloxanes: A case in biogas purification process
|
journal | July 2019 |
A review on removal of siloxanes from biogas: with a special focus on volatile methylsiloxanes
|
journal | September 2018 |
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