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首页> 外文期刊>Journal of Materials Science and Chemical Engineering >Biosorption of Zn2+ and Ni2+, Cu2+ by Four Kinds of Active Microalgae
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Biosorption of Zn2+ and Ni2+, Cu2+ by Four Kinds of Active Microalgae

机译：四种活性微藻对Zn2 +和Ni2 +，Cu2 +的生物吸附

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摘要

To investigate the affinity of the terrestrial microalgae to metal ions (Zn2+, Cu2+ and Ni2+) in aqueous solutions, four kinds of living algae (Oscillatoria, Botryococcus, Scenedesmus and Spirulina platensis Geitl, abbreviated as CZ, PTZ, SZ and LXZ) were chosen to biosorption experiment, and the mechanism of algae biosorption to metal ions were explored by fourier transform infrared spectroscopy (FTIR) and scanning electron microscopy (SEM). Results show that four kinds of algae have a good affinity for Cu, Zn, the removal rate could reach more than 95%; while for Ni, compared with CZ, SZ and PTZ, the adsorption rate of LXZ is weak. The results of FTIR and SEM experiments revealed that the function groups such as carboxyl, hydroxyl, amino, sulfonic groups and so on are the main groups which played important role in the procedure of absorbing metal ions from water aqueous. Specific algae have different affinity to different metals which will be great helpful in the field of biosorption.
机译：为了研究陆地微藻对水溶液中金属离子（Zn2 +，Cu2 +和Ni2 +）的亲和力，选择了四种活藻（Oscillatoria，Botryococcus，Scendesmus和Spirulina platensis Geitl，缩写为CZ，PTZ，SZ和LXZ）。通过生物吸附实验，通过傅里叶变换红外光谱（FTIR）和扫描电子显微镜（SEM）探索了藻类对金属离子的吸附机理。结果表明，四种藻类对Cu，Zn具有良好的亲和力，去除率可达到95％以上。对于镍，与CZ，SZ和PTZ相比，LXZ的吸附速率较弱。 FTIR和SEM实验结果表明，羧基，羟基，氨基，磺酸基等官能团是在从水中吸收金属离子的过程中起重要作用的主要基团。特定的藻类对不同的金属具有不同的亲和力，这将对生物吸附领域大有帮助。

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