Selective Competitive Biosorption of Au(III) and Cu(II) in Binary Systems by Magnetospirillum gryphiswaldense

Selective Competitive Biosorption of Au(III) and Cu(II) in Binary Systems by Magnetospirillum gryphiswaldense
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Magnetospirillum gryphiswaldense 在二元系统中选择性竞争性生物吸附 Au(III) 和 Cu(II)

DOI:
10.1080/01496395.2012.713071
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发表时间:
2013-03
影响因子:
2.8
通讯作者:
Sun, Jinsheng
Sun, Jinsheng
中科院分区:
工程技术4区
文献类型:
--
作者:
Li, Jing;Cai, Fang;Lv, Hao;Sun, Jinsheng

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研究了磁悬浮菌MSR-1对Au(III)和Cu(II)的单组分和双组分吸附行为。为了与二元体系中的选择性强化竞争吸附过程进行比较,本实验首先探讨了单一体系在不同条件下对Au(III)和Cu(II)的生物吸附。生物质在室温(25°C)、pH值分别为2.5和5.0、生物质浓度为10 g · L-1(3.83 g · L-1,干基)时表现出最高的单一Au(III)和Cu(II)离子吸附产率。两种金属离子的单组分体系的实验数据符合Langmuir等温式和准二级动力学模型。在Au(III)-Cu(II)二元体系中,Cu(II)阳离子的共存在一定比例范围内促进了Au(III)的吸附。专门确定了新的S形Cu(II)生物吸附等温线以揭示这种情况下的Cu(II)吸附行为。
The biosorption of Au(III) and Cu(II) ions in both single and binary systems by Magnetospirillum gryphiswaldense (MSR-1) was investigated. For comparison with the selective reinforced competitive biosorption process in a binary system, the experimental research first explored the biosorption of Au(III) and Cu(II) in a single system under various conditions. The biomass exhibited the highest single Au(III) and Cu(II) ion adsorption yields at room temperature (25°C), pH values of 2.5 and 5.0, respectively, and a biomass concentration of 10 g · L−1 (3.83 g · L−1, dry basis). The experimental data from the single component system for the two metallic ions fitted well to a Langmuir isotherm and a pseudo second-order kinetic models. In the Au(III)-Cu(II) binary system, the coexistence of Cu(II) cations promoted the adsorption of Au(III) within a certain range of ratios. A new sigmoidal Cu(II) biosorption isotherm was determined specifically to reveal the Cu(II) adsorption behavior in this case.
Ag (I) 和 Cu (II) 在 Magnetospirillum gryphiswaldense 上的选择性强化竞争性生物吸附
DOI: 10.1016/j.desal.2010.11.053
发表时间: 2011-04
期刊: Desalination
影响因子: 9.9
作者:
Wang, Yanhong;Gao, Hong;Sun, Jinsheng;Li, Jing;Su, Yanxia;Ji, Yulan;Gong, Chunmei
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期刊: DESALINATION
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发表时间: 2002-02-01
影响因子: 11.4
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Ishikawa, S;Suyama, K;Itoh, M
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DOI: --
发表时间: 2007
期刊: --
影响因子: --
作者:
宋慧平;李鑫钢;孙津生;尹晓红;王艳红;武振华
通讯作者: 宋慧平;李鑫钢;孙津生;尹晓红;王艳红;武振华