Comparison of parameters calculated from the BET and Freundlich isotherms obtained by nitrogen adsorption on activated carbons: A new method for calculating the specific surface area

被引：104

作者：

Passe-Coutrin, N. ^{[1
]}

Altenor, S. ^{[1
,2
]}

Cossement, D. ^{[3
]}

Jean-Marius, C. ^{[1
]}

Gaspard, S. ^{[1
]}

机构：

[1] Univ Antilles Guyane, Lab COVACHIMM, EA 3592, BP 250, F-97157 Pointe A Pitre, Guadeloupe, France

[2] Univ Quisqueya Haiti, Lab LAQUE, Port Au Prince, Haiti

[3] Univ Quebec Trois Rivieres, Inst Rech Hydrogene, Trois Rivieres, PQ GA9 5H7, Canada

来源：

MICROPOROUS AND MESOPOROUS MATERIALS | 2008年 / 111卷 / 1-3期

关键词：

activated carbon; Freundlich isotherm; BET isotherm; specific surface area; fractal dimension;

D O I：

10.1016/j.micromeso.2007.08.032

中图分类号：

O69 [应用化学];

学科分类号：

081704 ;

摘要：

The empirical linear relationship between the BET surface area S-BET and the Freundlich constant K-F, calculated from nitrogen adsorption isotherms of activated carbons, S-BET = a(0)K(F) is mathematically demonstrated. This correlation exists in the relative pressure domain in which the BET equation is valid, whatever the value of c for the BET equation and for values of the Freundlich exponent, a, between 0 and 0.2. This study allows to determine the correlation factor a(0) = 1/a with a = 1/SN2N (alpha+1)(alpha+1)/alpha(alpha) From this result, a new expression, depending of a and KF, can be deduced for calculating the specific surface area. (C) 2007 Elsevier Inc. All rights reserved.

引用

页码：517 / 522

页数：6

共 10 条

[1] Estimating the uncertainty of the specific surface area of Titanium Oxide Nanotubes calculated from nitrogen adsorption isotherms
Ayala Blanco, E.
Martinez Ortega, F.
Garcia Sanchez, C. E.
2017 JOINT IMEKO TC1-TC7-TC13 SYMPOSIUM: MEASUREMENT SCIENCE CHALLENGES IN NATURAL AND SOCIAL SCIENCES, 2018, 1044
[2] A COMPARISON OF PORE SIZE DISTRIBUTIONS OF ACTIVATED CARBONS CALCULATED FROM NITROGEN AND WATER DESORPTION ISOTHERMS
JUHOLA, AJ
PALUMBO, AJ
SMITH, SB
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1952, 74 (01) : 61 - 64
[3] Preparation and adsorption studies of high specific surface area activated carbons obtained from the chemical activation of jute stick
Asadullah, Mohammad
Rahman, Muhammad A.
Motin, Mohammad A.
Sultan, Mohammad B.
ADSORPTION SCIENCE & TECHNOLOGY, 2006, 24 (09) : 761 - 770
[4] SINGLE POINT METHOD FOR EVALUATING SPECIFIC SURFACE-AREA OF A SOLID FROM NITROGEN ADSORPTION-ISOTHERMS
DOLLIMORE, D
SPOONER, P
JOURNAL OF APPLIED CHEMISTRY AND BIOTECHNOLOGY, 1974, 24 (1-2): : 35 - 41
[5] Assessment of the surface area occupied by molecules on activated carbon from liquid phase adsorption data from a combination of the BET and the Freundlich theories
Passe-Coutrin, Nady
Altenor, Sandro
Gaspard, Sarra
JOURNAL OF COLLOID AND INTERFACE SCIENCE, 2009, 332 (02) : 515 - 519
[6] Specific Surface Area and Multifractal Parameters of Associated Nitrogen Adsorption and Desorption Isotherms in Soils from Santa Catarina, Brazil
Paz-Ferreiro, J.
da Luz, L. R. Q. P.
Lado, M.
Vidal Vazquez, E.
VADOSE ZONE JOURNAL, 2013, 12 (03):
[7] Novel Method for Preparing Activated Carbons with High Specific Surface Area from Rice Husk
Song, Xiaolan
Zhang, Ying
Chang, Caimin
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2012, 51 (46) : 15075 - 15081
[8] Preparation of Activated Carbons with Large Specific Surface Areas from Biomass Corncob and Their Adsorption Equilibrium for Methane, Carbon Dioxide, Nitrogen, and Hydrogen
Sun, Yong
Webley, Paul A.
INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH, 2011, 50 (15) : 9286 - 9294
[9] Preparation and Adsorption Property of Activated Carbon with Higll Specific Surface Area from Ligin by Microwave-phosphate Method
Long, Tian
2011 INTERNATIONAL CONFERENCE ON ENVIRONMENTAL SYSTEMS SCIENCE AND ENGINEERING (ICESSE 2011), VOL 3, 2011, : 53 - 58
[10] Impact of the polydispersion of TiO2 materials on their particle size calculated from specific surface area results obtained during an interlaboratory comparison exercise
Bau, Sebastien
Artous, Sebastien
Jacquinot, Sebastien
Locatelli, Dominique
Hochepied, Jean-Francois
Feltin, Nicolas
Chivas-Joly, Carine
PARTICUOLOGY, 2025, 98 : 31 - 40

← 1 →