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首页> 外文期刊>Environmental Science & Technology >Uptake of Sr2+ and Co2+ into Biogenic Hydroxyapatite: Implications for Biomineral Ion Exchange Synthesis
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Uptake of Sr2+ and Co2+ into Biogenic Hydroxyapatite: Implications for Biomineral Ion Exchange Synthesis

机译：Sr2 +和Co 2 +吸收到生物羟基磷灰石中：对生物矿物离子交换合成的启示。

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摘要

Biomineral hydroxyapatite (Bio-HAp) produced by Serratia sp. has the potential to be a suitable material for the remediation of metal contaminated waters and as a radionudide waste storage material. Varying the Bio-HAp manufacturing method was found to influence hydroxyapatite (HAp) properties and consequently the uptake of Sr2* and Co2*. All die Bio-HAp tested in this study were more efficient than the commercially available hydroxyapatite (Com-HAp) for Sr2* and Co2* uptake. For Bio-HAp the uptake for Sr2* and Co2* ranged from 24 to 39 and 29 to 78 mmol per 100 g, respectively. Whereas, the uptake of Sr2+and Co2+ by Com-HAp ranged from 3 to 11 and 4 to 18 mmol per 100 g, respectively. Properties that increased metal uptake were smaller crystallite size (<40 run) and higher surface area (>70 m g-1). Organic content which influences the structure (e.g., crystallite arrangement, size and surface area) and composition of Bio-HAp was also found to be important in Sr2* and Co2* uptake. Overall, Bio-HAp shows promise for the remediation of aqueous metal waste especially since Bio-HAp can be synthesized for optimal metal uptake properties.
机译：Serratia sp。生产的生物矿物羟基磷灰石（Bio-HAp）。有潜力成为修复金属污染水的合适材料，并作为放射性核素废物存储材料。发现改变Bio-HAp的制造方法会影响羟基磷灰石（HAp）的性能，并因此影响Sr2 *和Co2 *的吸收。在这项研究中测试的所有Bio-HAp对Sr2 *和Co2 *的吸收均比市售的羟基磷灰石（Com-HAp）更有效。对于Bio-HAp，Sr2 *和Co2 *的吸收量分别为每100 g 24至39 mmol和29至78 mmol。而Com-HAp对Sr2 +和Co2 +的吸收范围为每100 g 3至11 mmol和4至18 mmol。增加金属吸收的特性是较小的微晶尺寸（<40nm）和较高的表面积（> 70m g-1）。还发现影响Bio-HAp的结构（例如，微晶排列，尺寸和表面积）和组成的有机含量在Sr 2 *和Co 2 *吸收中很重要。总体而言，Bio-HAp显示出有望修复含水金属废物的能力，特别是因为可以合成Bio-HAp以获得最佳的金属吸收性能。

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  • 来源
    《Environmental Science & Technology》 |2011年第16期|p.6985-6990|共6页
  • 作者

    Handley-Sidhu S; Renshaw J. C; Moriyama S; Stolpe B; Mennan C; Bagheriasl S; Yong P; Stamboulis A; Paterson-Beedle M; Sasaki K; Pattrick R. A. D; Lead J. R; Macaskie L E;

  • 作者单位

    School of Geography Earth and Environmental Sciences;

    School of Geography Earth and Environmental Sciences;

    Department of Earth Resource Engineering, Kyushu University, Fukuoka, 819-0395, Japan.;

    School of Geography Earth and Environmental Sciences;

    School of Biosciences;

    School of Metallurgy and Materials, The University of Birmingham, Edgbaston, Birmingham BIS 2TT, U.K.;

    School of Biosciences;

    School of Metallurgy and Materials, The University of Birmingham, Edgbaston, Birmingham BIS 2TT, U.K.;

    School of Biosciences;

    Department of Earth Resource Engineering, Kyushu University, Fukuoka, 819-0395, Japan.;

    School of Earth, Atmospheric and Environmental Sciences, The University of Manchester, Oxford Road, Manchester, M1 3 9PL, U.K;

    School of Geography Earth and Environmental Sciences;

    School of Biosciences;

  • 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);美国《化学文摘》(CA);
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