Effect of thermal activaton on the exchange behavior of AIPO4 toward Cu2+ ions

被引：2

作者：

Mustafa, Syed ^{[1
]}

Javid, Muhammad ^{[1
]}

Zaman, Muhammad Iqbal ^{[1
]}

机构：

[1] Univ Peshawar, Natl Ctr Excellence Phys Chem, Peshawar 25120, NWFP, Pakistan

来源：

INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH | 2008年 / 47卷 / 15期

关键词：

D O I：

10.1021/ie070533h

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Cu2+ ion adsorption and potentiometric titration studies were carried out on AIPO(4) as a function of pH, temperature, and activation. Two different samples thermally treated at 105 and 400 degrees C were employed for the sorption and potentiometric titration studies. The dissociation constant values (pK(a)) showed an increase with thermal activation, indicating a decrease in the surface acidity of AlPO4. Cu2+ ion adsorption was found to increase with pH, temperature, and thermal activation of the solid. The Freundlich equation was found to be applicable to the sorption data.

引用

页码：5427 / 5432

页数：6

共 26 条

[1]

ANTHONY SRJ, 1968, SOIL SCI SOC AM P, V32, P216

[2] Ion exchange properties of the sodium phlogopite and biotite [J].

Bortun, AI ;

Bortun, LN ;

Khainakov, SA ;

Clearfield, A .

SOLVENT EXTRACTION AND ION EXCHANGE, 1998, 16 (04) :1067-1090

[3] TEXTURE AND SURFACE-CHEMISTRY OF ALUMINUM PHOSPHATES [J].

CAMPELO, JM ;

MARINAS, JM ;

MENDIOROZ, S ;

PAJARES, JA .

JOURNAL OF CATALYSIS, 1986, 101 (02) :484-495

[4] ZIRCONIUM AND TITANIUM PHOSPHATES AS CATALYSTS - A REVIEW [J].

CLEARFIELD, A ;

THAKUR, DS .

APPLIED CATALYSIS, 1986, 26 (1-2) :1-26

[5] Inorganic ion exchangers, past, present, and future [J].

Clearfield, A .

SOLVENT EXTRACTION AND ION EXCHANGE, 2000, 18 (04) :655-678

[6] THE PREPARATION OF CRYSTALLINE ZIRCONIUM PHOSPHATE AND SOME OBSERVATIONS ON ITS ION EXCHANGE BEHAVIOUR [J].

CLEARFIELD, A ;

STYNES, JA .

JOURNAL OF INORGANIC & NUCLEAR CHEMISTRY, 1964, 26 (01) :117-129

[7]

Clearfield A., 1982, INORGANIC ION EXCHAN

[8]

CLEARFIELD A, 1988, CHEM REV, V88, P127

[9]

Clesceri L.S., 1989, STANDARD METHODS EXA, V17th

[10] ADSORPTION STUDIES ON CLAY MINERALS .2. A FORMULATION OF THE THERMODYNAMICS OF EXCHANGE ADSORPTION [J].

GAINES, GL ;

THOMAS, HC .

JOURNAL OF CHEMICAL PHYSICS, 1953, 21 (04) :714-718

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