Modification of an alumina (γ-Al2O3) membrane:: characterization by electrochemical parameters and X-Ray photoelectron spectroscopy

被引：5

作者：

Ariza, MJ ^{[1
]}

Cañas, A ^{[1
]}

Rodríguez-Castellón, E ^{[1
]}

Cabeza, A ^{[1
]}

Benavente, J ^{[1
]}

机构：

[1] Univ Malaga, Fac Ciencias, Dept Fis Aplicada 1, E-29071 Malaga, Spain

来源：

BOLETIN DE LA SOCIEDAD ESPANOLA DE CERAMICA Y VIDRIO | 2002年 / 41卷 / 01期

关键词：

alumina membrane; uranyl phenylphosphonate; X-ray photoelectron spectroscopy; impedance spectroscopy; diffusion;

D O I：

10.3989/cyv.2002.v41.i1.709

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

A commercial alumina membrane for microfiltration has been modified with an inorganic precipitate (uranyl phenylphosphonate or UPP) into the pores. The modified membrane was chemical and electrochemical characterized. Membrane surface characterization was carried out by X-ray photoelectron spectroscopy, while electrochemical transport parameters were determined from salt diffusion and impedance spectroscopy for the membrane/NaCl solutions. From these results, atomic concentrations on the surface of the modified membrane, salt permeability and membrane electrical resistance were obtained. A comparison of these values with those determined for an unmodified membrane allows the determination of precipitate effect on the different parameters as well as the influence of X-ray on the UPP precipitate.

引用

页码：122 / 125

页数：4

共 14 条

[1] DIELECTRIC-PROPERTIES OF CELLULOSE-ACETATE REVERSE-OSMOSIS MEMBRANES IN AQUEOUS SALT-SOLUTIONS [J].

ASAKA, K .

JOURNAL OF MEMBRANE SCIENCE, 1990, 50 (01) :71-84

[2] Electrical behavior of an inorganic film from ac and dc measurements [J].

Benavente, J ;

RamosBarrado, JR ;

Cabeza, A .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1996, 180 (01) :116-121

[3] DETERMINATION OF SOME ELECTRICAL PARAMETERS FOR UO2(O3PC6H5) FILMS DEPOSITED ON A POROUS SUPPORT [J].

BENAVENTE, J ;

RAMOSBARRADO, JR ;

BRUQUE, S ;

MARTINEZ, M .

JOURNAL OF THE CHEMICAL SOCIETY-FARADAY TRANSACTIONS, 1994, 90 (20) :3103-3107

[4] A PACKAGE FOR IMPEDANCE ADMITTANCE DATA-ANALYSIS [J].

BOUKAMP, BA .

SOLID STATE IONICS, 1986, 18-9 (pt 1) :136-140

[5] CURRENT RECTIFICATION BY H3OUO2PO4.3H2O (HUP) THIN-FILMS IN ELECTROLYTE MEDIA [J].

CABEZA, A ;

MARTINEZ, M ;

BENAVENTE, J ;

BRUQUE, S .

SOLID STATE IONICS, 1992, 51 (3-4) :127-131

[6] Characterization of active and porous sublayers of a composite reverse osmosis membrane by impedance spectroscopy, streaming and membrane potentials, salt diffusion and X-ray photoelectron spectroscopy measurements [J].

Cañas, A ;

Ariza, MJ ;

Benavente, J .

JOURNAL OF MEMBRANE SCIENCE, 2001, 183 (01) :135-146

[7]

CHADWICK D, 1973, CHEM PHYS LETT, V21, P293

[8]

FIDDLER SL, 1993, MAT RES SOC FALL M B

[9] XPS O 1S BINDING-ENERGIES FOR POLYMERS CONTAINING HYDROXYL, ETHER, KETONE AND ESTER GROUPS [J].

LOPEZ, GP ;

CASTNER, DG ;

RATNER, BD .

SURFACE AND INTERFACE ANALYSIS, 1991, 17 (05) :267-272

[10]

MACDONALS D, 1987, IMPEDANCE SPECTROSCO

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