Selenium oxyanions: Highly selective uptake by a novel anion exchanger

Naofumi Kozai; Toshihiko Ohnuki; Sridhar Komarneni

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Selenium oxyanions: Highly selective uptake by a novel anion exchanger

机译：硒氧阴离子：新型阴离子交换剂的高度选择性吸收

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We report the extremely high and selective uptake of selenium oxyanions by a novel anion exchanger, Ni_(1-x)Zn_(2x)(OH)_2(OCOCH_3)_(2x) ·nH_2O (0.15 < x < 0.25). The tested Ni-Zn basic salt (x = 0.24) exhibited very high selectivity for Se(Ⅳ) [K_d = 9.0 x 10~4 cm~3/g with an initial Se(Ⅳ) concentration of 1 x 10~(-4) M] in the presence of 0.1 M Cl~- solution. The uptake of Se(Ⅳ) on the Ni-Zn basic salt was irreversible when treated with solutions containing 1 N Cl~-, 1 N NO_3~-, or 1 N PO_4~(3-). This novel exchanger also showed high K_d (2.6 x 10~3 cm~3/g) for Se(Ⅵ), and therefore it is expected to be useful for decontamination and removal of selenium oxyanions from contaminated water.

机译：我们报告了新型阴离子交换剂Ni_（1-x）Zn_（2x）（OH）_2（OCOCH_3）_（2x）·nH_2O（0.15

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来源
《Journal of Materials Research》 |2002年第12期|p.2993-2996|共4页
作者
Naofumi Kozai; Toshihiko Ohnuki; Sridhar Komarneni;
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作者单位

Department of Environmental Sciences, Japan Atomic Energy Research Institute, Tokai, Ibaraki, 319-1195 Japan;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);美国《生物学医学文摘》(MEDLINE);
原文格式 PDF
正文语种 eng
中图分类工程材料学;
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Selenium oxyanions: Highly selective uptake by a novel anion exchanger

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