Synthetic inorganic ion-exchange materials part xlix. * adsorption and desorption behaviour of heavy metal ions on hydrated titanium dioxide

Mitsuo Abe; Peng Wang; Ramesh Chitrakar; Masamichi Tsuji

doi:10.1039/AN9891400435

Synthetic inorganic ion-exchange materials part xlix. * adsorption and desorption behaviour of heavy metal ions on hydrated titanium dioxide

Mitsuo Abe, Peng Wang, Ramesh Chitrakar, Masamichi Tsuji

Research output: Contribution to journal › Article › peer-review

42 Scopus citations

Abstract

The ion-exchange selectivity of a number of divalent metal ions was studied as a function of pH in nitrate and chloride media. The order of selectivity was Pb2+ > Hg2+ > Cd2+ > Mg2+ in nitrate solution and Pb2+ > Cd2+ > Ca2+ > Mg2+ > Hg2+ in chloride solution. A good linear relationship between the logarithm of the distribution coefficient of the heavy metal ions and their effective ionic radius was found. On the basis of the Kd values, the separation of a mixture of Cd2+, Hg2+ and Pb2+ and the group separation of Hg2+ and Pb2+ from several common metal ions were achieved on an ion-exchange column containing amorphous hydrated titanium dioxide.

Original language	English
Pages (from-to)	435-438
Number of pages	4
Journal	The Analyst
Volume	114
Issue number	4
DOIs	https://doi.org/10.1039/AN9891400435
State	Published - 1989
Externally published	Yes

Keywords

Chromatographic separation
Hydrated titanium dioxide
Ion exchange
Lead separation
Transition metals

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10.1039/AN9891400435

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abstract = "The ion-exchange selectivity of a number of divalent metal ions was studied as a function of pH in nitrate and chloride media. The order of selectivity was Pb2+ > Hg2+ > Cd2+ > Mg2+ in nitrate solution and Pb2+ > Cd2+ > Ca2+ > Mg2+ > Hg2+ in chloride solution. A good linear relationship between the logarithm of the distribution coefficient of the heavy metal ions and their effective ionic radius was found. On the basis of the Kd values, the separation of a mixture of Cd2+, Hg2+ and Pb2+ and the group separation of Hg2+ and Pb2+ from several common metal ions were achieved on an ion-exchange column containing amorphous hydrated titanium dioxide.",

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T1 - Synthetic inorganic ion-exchange materials part xlix. * adsorption and desorption behaviour of heavy metal ions on hydrated titanium dioxide

AU - Abe, Mitsuo

AU - Wang, Peng

AU - Chitrakar, Ramesh

AU - Tsuji, Masamichi

PY - 1989

Y1 - 1989

N2 - The ion-exchange selectivity of a number of divalent metal ions was studied as a function of pH in nitrate and chloride media. The order of selectivity was Pb2+ > Hg2+ > Cd2+ > Mg2+ in nitrate solution and Pb2+ > Cd2+ > Ca2+ > Mg2+ > Hg2+ in chloride solution. A good linear relationship between the logarithm of the distribution coefficient of the heavy metal ions and their effective ionic radius was found. On the basis of the Kd values, the separation of a mixture of Cd2+, Hg2+ and Pb2+ and the group separation of Hg2+ and Pb2+ from several common metal ions were achieved on an ion-exchange column containing amorphous hydrated titanium dioxide.

AB - The ion-exchange selectivity of a number of divalent metal ions was studied as a function of pH in nitrate and chloride media. The order of selectivity was Pb2+ > Hg2+ > Cd2+ > Mg2+ in nitrate solution and Pb2+ > Cd2+ > Ca2+ > Mg2+ > Hg2+ in chloride solution. A good linear relationship between the logarithm of the distribution coefficient of the heavy metal ions and their effective ionic radius was found. On the basis of the Kd values, the separation of a mixture of Cd2+, Hg2+ and Pb2+ and the group separation of Hg2+ and Pb2+ from several common metal ions were achieved on an ion-exchange column containing amorphous hydrated titanium dioxide.

KW - Chromatographic separation

KW - Hydrated titanium dioxide

KW - Ion exchange

KW - Lead separation

KW - Transition metals

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Synthetic inorganic ion-exchange materials part xlix. * adsorption and desorption behaviour of heavy metal ions on hydrated titanium dioxide

Abstract

Keywords

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