Acoustic energy isotherms: An emergent approach for textural characterization of activated carbons

被引：4

作者：

Marino Peacok, Thayset ^{[1
]}

Crespo Sariol, Harold ^{[1
]}

Sanchez Roca, Angel ^{[2
]}

Puente Torres, Jeamichel ^{[3
]}

Gryglewicz, Grazyna ^{[4
]}

Yperman, Jan ^{[5
]}

Carleer, Robert ^{[5
]}

机构：

[1] Univ Oriente, Fac Chem Engn, Lab Appl Acoust, Santiago De Cuba, Cuba

[2] Univ Oriente, Fac Mech Engn, Santiago De Cuba, Cuba

[3] Univ Oriente, Fac Elect Engn, Santiago De Cuba, Cuba

[4] Wroclaw Univ Technol, Fac Chem, Dept Polymer & Carbonaceous Mat, Gdanska 7-9, PL-50344 Wroclaw, Poland

[5] Hasselt Univ, Res Grp Appl & Analyt Chem, Agoralaan Bldg D, B-3590 Diepenbeek, Belgium

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2020年 / 298卷

关键词：

Activated carbon; Textural characterization; Acoustic emission; Bubbles; ADSORPTION; PORE;

D O I：

10.1016/j.micromeso.2020.110045

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

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.

引用

页数：12

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