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Title: | Acoustic energy isotherms: An emergent approach for textural characterization of activated carbons | Authors: | Peacok, Thayset Marino Sariol, Harold, Crespo Sanchez Roca, Angel Torres, Jeamichel, Puente Gryglewicz, Grazyna YPERMAN, Jan CARLEER, Robert |
Issue Date: | 2020 | Publisher: | ELSEVIER | Source: | Microporous and Mesoporous Materials, 298 (Art N° 110045) | Abstract: | Acoustic Emission Analysis (AEA) for textural characterization of granular activated carbons (GACs) is an interesting alternative for assessing the GAC volume of pores in a rapid, sensitive and reliable way. Correlations between AEA and conventional methods have demonstrated its potentialities for textural characterization of high-porosity materials. In this study, commercial GACs with different porous characteristics were compared and correlated by applying volumetric gas sorption (N-2 at 77 K, CO2 at 273 K), Hg porosimetry and AEA. The energy, amplitude and power of the acoustic signal produced during GAC immersion in water are used as parameters to correlate with textural characteristics of the carbons. The found relationship between conventional porosity assessment techniques and acoustic parameters demonstrated the potentialities of the acoustic method as complementary technique of exploring textural properties of high-porosity materials. | Notes: | Yperman, J (reprint author), Hasselt Univ, Res Grp Appl & Analyt Chem, Agoralaan Bldg D, B-3590 Diepenbeek, Belgium. peacok@uo.edu.cu; harold@uo.edu.cu; sanchez@uo.edu.cu; jeamichelp@gmail.com; grazyna.gryglewicz@pwr.edu.pl; jan.yperman@uhasselt.be; robert.carleer@uhasselt.be |
Other: | Yperman, J (reprint author), Hasselt Univ, Res Grp Appl & Analyt Chem, Agoralaan Bldg D, B-3590 Diepenbeek, Belgium. peacok@uo.edu.cu; harold@uo.edu.cu; sanchez@uo.edu.cu; jeamichelp@gmail.com; grazyna.gryglewicz@pwr.edu.pl; jan.yperman@uhasselt.be; robert.carleer@uhasselt.be | Keywords: | Activated carbon;Textural characterization;Acoustic emission;Bubbles | Document URI: | http://hdl.handle.net/1942/31295 | ISSN: | 1387-1811 | e-ISSN: | 1873-3093 | DOI: | 10.1016/j.micromeso.2020.110045 | ISI #: | WOS:000527322200002 | Rights: | 2020 Elsevier Inc. All rights reserved. | Category: | A1 | Type: | Journal Contribution | Validations: | ecoom 2021 |
Appears in Collections: | Research publications |
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marino.pdf Restricted Access | Published version | 2.07 MB | Adobe PDF | View/Open Request a copy |
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