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首页> 外文期刊>Bioprocess and Biosystems Engineering >Biosynthesis of high-purity γ-MnS nanoparticle by newly isolated Clostridiaceae sp. and its properties characterization
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Biosynthesis of high-purity γ-MnS nanoparticle by newly isolated Clostridiaceae sp. and its properties characterization

机译：新分离出的梭菌科植物生物合成高纯度γ-MnS纳米粒子。及其性质表征

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摘要

MnS is a p-type semiconductor with both antiferromagnetism and wide band gap, endowing it potential applications for short wavelength optoelectronic devices, solar cells and luminescent materials. Despite successful biosynthesis of nano CdS, PbS and ZnS with extremely low solubility product, there have been no reports available on biosynthesis of nano MnS so far because both PO_4~(3-) and OH~- negatively disturb reaction between Mn~(2+) and S~(2-) through forming Mn_3(PO_4)_2 and Mn(OH)_2 as undesirable impurities. In this work, high-purity MnS nanocrystals were synthesized in presence of newly isolated Clostridiaceae sp. through strictly controlling pH value and PO_4~(3-) dose for the first time. The results showed that hexagonal-shaped γ-MnS with a diameter of 2-3 μm and a thickness of 200-300 nm was obtained by biosynthesis at 0.014 g/L PO_4~(3-) dose and pH 5.8. The hexagonal-shaped particle possessed dense and uniform texture. The γ-MnS had an obvious absorption peak at 325 nm and an emission peak at 435 nm as well as paramagnetic property with a coercivity of 52.91 Oe and a retentivity of 4.37 × 10~(-3) emu/g at ambient temperature. The studies demonstrated that biosynthesis was qualified for preparation of nano metal sulfites with relatively high solubility product like MnS, widening its application spectrum.
机译：MnS是具有反铁磁性和宽带隙的p型半导体，使其在短波长光电器件，太阳能电池和发光材料中具有潜在的应用。尽管成功地合成了具有极低溶解度产物的纳米CdS，PbS和ZnS，但迄今为止尚无关于纳米MnS的生物合成的报道，因为PO_4〜（3-）和OH〜-都会干扰Mn〜（2+ ）和S〜（2-），通过形成Mn_3（PO_4）_2和Mn（OH）_2作为不希望的杂质。在这项工作中，在新分离出的梭菌科的存在下合成了高纯度的MnS纳米晶体。首次严格控制pH值和PO_4〜（3-）剂量。结果表明，在0.014 g / L PO_4〜（3-）剂量和pH 5.8下，通过生物合成获得了直径为2-3μm，厚度为200-300 nm的六边形γ-MnS。六角形颗粒具有致密且均匀的质地。 γ-MnS在环境温度下在325 nm处有一个明显的吸收峰，在435 nm处有一个发射峰，并且具有顺磁性，矫顽力为52.91 Oe，保持力为4.37×10〜（-3）emu / g。研究表明，生物合成适合制备具有较高溶解度的产物如MnS的纳米亚硫酸盐，拓宽了其应用范围。

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  • 来源
    《Bioprocess and Biosystems Engineering》 |2015年第2期|219-227|共9页
  • 作者

    Xin Liu; Jia Wang; Lei Yue; Baoping Xin; Shi Chen; Jiulan Dai; Renqing Wang; Yutao Wang;

  • 作者单位

    School of Chemical Engineering and Environment, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, People's Republic of China;

    School of Chemical Engineering and Environment, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, People's Republic of China;

    School of Chemical Engineering and Environment, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, People's Republic of China;

    School of Chemical Engineering and Environment, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, People's Republic of China;

    School of Chemical Engineering and Environment, Beijing Institute of Technology, 5 South Zhongguancun Street, Haidian District, Beijing 100081, People's Republic of China;

    School of Life Sciences, Institute of Ecology and Biodiversity, Shandong University, 27 Shanda Nanlu, Jinan 250100, People's Republic of China;

    School of Life Sciences, Institute of Ecology and Biodiversity, Shandong University, 27 Shanda Nanlu, Jinan 250100, People's Republic of China;

    School of Life Sciences, Institute of Ecology and Biodiversity, Shandong University, 27 Shanda Nanlu, Jinan 250100, People's Republic of China;

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  • 正文语种 eng
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  • 关键词

    Biosynthesis; Nano MnS; Clostridiaceae sp.; Green chemistry; Inorganic nanoparticle;

    机译：生物合成;纳米MnS;梭菌科;绿色化学;无机纳米粒子;

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