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Title: Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity

Abstract

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.

Authors:
 [1];  [2];  [1];  [3];  [4];  [5];  [1];  [5]; ORCiD logo [4]; ORCiD logo [6]
  1. Univ. of Connecticut, Storrs, CT (United States). Institute of Materials Science
  2. Univ. of Connecticut, Storrs, CT (United States). Department of Chemical & Biomolecular Engineering
  3. Brookhaven National Lab. (BNL), Upton, NY (United States)
  4. Univ. of Connecticut, Storrs, CT (United States). Institute of Materials Science and Department of Mechanical Engineering
  5. Univ. of Connecticut, Storrs, CT (United States). Department of Chemistry
  6. Univ. of Connecticut, Storrs, CT (United States). Institute of Materials Science, Department of Chemical & Biomolecular Engineering, and Department of Chemistry
Publication Date:
Research Org.:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Org.:
USDOE Office of Science (SC), Basic Energy Sciences (BES) (SC-22)
OSTI Identifier:
1347290
Report Number(s):
BNL-113560-2017-JA
Journal ID: ISSN 1387-1811
Grant/Contract Number:  
SC00112704
Resource Type:
Accepted Manuscript
Journal Name:
Microporous and Mesoporous Materials
Additional Journal Information:
Journal Volume: 239; Journal ID: ISSN 1387-1811
Publisher:
Elsevier
Country of Publication:
United States
Language:
English
Subject:
36 MATERIALS SCIENCE; 25 ENERGY STORAGE; Mesoporous alumina (MA); Reaction times; Surfactant chain lengths; Calcination temperatures and hold times; Textural properties; D4 siloxane; Adsorption

Citation Formats

Zhong, Wei, Jiang, Ting, Jafari, Tahereh, Poyraz, Altug S., Wu, Wei, Kriz, David A., Du, Shoucheng, Biswas, Sourav, Thompson Pettes, Michael, and Suib, Steven L. Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity. United States: N. p., 2016. Web. doi:10.1016/j.micromeso.2016.10.028.
Zhong, Wei, Jiang, Ting, Jafari, Tahereh, Poyraz, Altug S., Wu, Wei, Kriz, David A., Du, Shoucheng, Biswas, Sourav, Thompson Pettes, Michael, & Suib, Steven L. Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity. United States. doi:10.1016/j.micromeso.2016.10.028.
Zhong, Wei, Jiang, Ting, Jafari, Tahereh, Poyraz, Altug S., Wu, Wei, Kriz, David A., Du, Shoucheng, Biswas, Sourav, Thompson Pettes, Michael, and Suib, Steven L. Tue . "Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity". United States. doi:10.1016/j.micromeso.2016.10.028. https://www.osti.gov/servlets/purl/1347290.
@article{osti_1347290,
title = {Modified inverse micelle synthesis for mesoporous alumina with a high D4 siloxane adsorption capacity},
author = {Zhong, Wei and Jiang, Ting and Jafari, Tahereh and Poyraz, Altug S. and Wu, Wei and Kriz, David A. and Du, Shoucheng and Biswas, Sourav and Thompson Pettes, Michael and Suib, Steven L.},
abstractNote = {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.},
doi = {10.1016/j.micromeso.2016.10.028},
journal = {Microporous and Mesoporous Materials},
number = ,
volume = 239,
place = {United States},
year = {2016},
month = {10}
}

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