ADSORPTION OF METHYLENE-BLUE AT SOLID-LIQUID AND WATER AIR INTERFACES

被引：36

作者：

ARDIZZONE, S ^{[1
]}

GABRIELLI, G ^{[1
]}

LAZZARI, P ^{[1
]}

机构：

[1] UNIV FLORENCE,DEPT CHEM,I-50121 FLORENCE,ITALY

来源：

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS | 1993年 / 76卷

关键词：

ADSORPTION; METHYLENE BLUE; SOLID LIQUID INTERFACE; WATER AIR INTERFACE; ZRO2;

D O I：

10.1016/0927-7757(93)80073-N

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Determinations of the adsorption of Methylene Blue (MB) at both solid/liquid and water/air interfaces have been performed. The solid adsorbents were two ZrO2 samples prepared in the laboratory. For both oxides the adsorption isotherms presented a langmuirian shape with a long plateau and a final slight upward bend. Parameters describing the adsorption at the solid surfaces were obtained by processing data by both the Langmuir and the BET equations. At the water/air interface, measurements of the surface tension as a function of the bulk concentration of MB were performed. The resulting isotherm exhibited two regions differing in the slopes of the curves. The orientation, degree of association and packing of the adsorbed MB molecules are discussed, and the data obtained at the two interfaces are compared.

引用

页码：149 / 157

页数：9

共 27 条

[1]

ADAMSON AW, 1982, PHYSICAL CHEM SURFAC

[2]

[Anonymous], 1978, SURFACTANTS INTERFAC

[3] PREPARATION OF CRYSTALLINE ZIRCONIA POWDERS - CHARACTERIZATION OF THE BULK PHASE AND INTERFACIAL BEHAVIOR [J].

ARDIZZONE, S ;

BASSI, G ;

LIBORIO, G .

COLLOIDS AND SURFACES, 1990, 51 :207-217

[4] HOMOGENEOUS NUCLEATION OF PURE PHASE OXIDES - FORMATION OF ROD-LIKE PARTICLES [J].

ARDIZZONE, S ;

LAZZARI, P .

MATERIALS LETTERS, 1991, 12 (1-2) :37-42

[5]

Bergmann K, 1963, J PHYS CHEM, V67, P2169

[6]

BRUNAUER S, 1945, ADSORPTION GASES VAP, V1

[7]

CARELLA S, 1992, THESIS U MILAN

[8]

Fairbaim P.E., 1957, CLAY MINER B, V3, P129

[9] Adsorption at the interface between two fluids. Part I. The adsorption of methylene-blue, methyl-orangle, congo-red, and Orange-II At benzene-water and chlorobenzene-water interfaces. [J].

Gibby, CM ;

Addison, CC .

JOURNAL OF THE CHEMICAL SOCIETY, 1936, :119-127

[10] ASSOCIATION OF ABSORBED AROMATIC SOLUTES [J].

GILES, CH ;

EASTON, IA ;

MCKAY, RB ;

PATEL, CC ;

SHAH, NB ;

SMITH, D .

TRANSACTIONS OF THE FARADAY SOCIETY, 1966, 62 (523P) :1963-&

← 1 2 3 →