PHOSPHATE ADSORPTION AT THE POROUS-GLASS WATER AND SIO2/WATER INTERFACES

被引：16

作者：

DALAS, E

KOUTSOUKOS, PG

机构：

[1] DEPT CHEM,PHYS CHEM LAB,POB 1239,UNIV CAMPUS,GR-26110 PATRAS,GREECE

[2] RES INST CHEM ENGN & CHEM PROC HIGH TEMP,GR-26110 PATRAS,GREECE

来源：

JOURNAL OF COLLOID AND INTERFACE SCIENCE | 1990年 / 134卷 / 02期

关键词：

D O I：

10.1016/0021-9797(90)90139-F

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：

The adsorption of inorganic orthophosphate on porous glass and SiO2 surfaces has been investigated. Porous glass exhibited markedly higher affinity as compared to SiO2 toward phosphate, which was found to strongly depend on ionic strength and temperature. The phosphate uptake was relatively fast and the kinetics followed a simple first order equation. Adsorption data gave a satisfactory fit to a recently developed adsorption isotherm describing the adsorption of ions on heterogeneous surfaces, based on the classical Langmuir isotherm and assuming a Gaussian distribution of the free energies of adsorption. © 1990.

引用

页码：299 / 304

页数：6

共 14 条

[1] [Anonymous], ADSORPTION SURFACE A
[2] BEEK J, 1979, SOIL CHEM
[3] BREEUWSMA A, 1973, MEDED LANDBOUWHOGESC, V73, P15
[4] BRINKC JW, 1978, PHOSPHORUS ENV, P23
[5] APPLICATION OF ELOVICH EQUATION TO THE KINETICS OF PHOSPHATE RELEASE AND SORPTION IN SOILS
CHIEN, SH
CLAYTON, WR
[J]. SOIL SCIENCE SOCIETY OF AMERICA JOURNAL, 1980, 44 (02) : 265 - 268
[6] Davies C.W., 1962, ION ASS
[7] House W.A., 1983, SPEC PERIOD REPORTS, P1
[8] PHYSICAL ADSORPTION ON HETEROGENEOUS SOLIDS
JARONIEC, M
[J]. ADVANCES IN COLLOID AND INTERFACE SCIENCE, 1983, 18 (3-4) : 149 - 225
[9] THE ADSORPTION OF GASES ON PLANE SURFACES OF GLASS, MICA AND PLATINUM.
Langmuir, Irving
[J]. JOURNAL OF THE AMERICAN CHEMICAL SOCIETY, 1918, 40 : 1361 - 1403
[10] MCCLELLAN GH, 1978, PHOSPHOROUS ENV, P50

← 1 2 →