从废弃生物质中提取碳材料作为抗菌空气过滤器

Georgi L. Georgiev, V. Hubenov, I. Stoycheva, Rumyana T. Eneva, B. Petrova, U. Szeluga, S. Pusz, Marieta Belcheva, B. Tsyntsarski
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引用次数: 0

摘要

以杏仁壳为原料研制了吸附空气中微生物的碳材料。样品采用高温加氢热解一步法处理。研究在600-900°C的宽温度范围内进行。得到了微孔和中孔占优势的碳酸盐岩。样品被锌、银、铁和铜按重量的5%浸渍。用XDR、BET、扫描电子能谱和元素分析对所得样品进行了表征。最终产品的特点是温和的表面和纳米尺寸的金属颗粒的存在。采用标准方法,以大肠杆菌K12为试验微生物,在动态接触条件下考察了活性炭复合材料的抗菌性能。所有测试的复合材料在与微生物细胞接触48小时后都表现出很强的抗菌性能。因此,这些材料在过滤系统中的应用将是成功减少微生物细胞数量的可能解决方案。假定在空气环境中也能达到类似的效果。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
CARBON MATERIALS FROM WASTE BIOMASS AS ANTI-BACTERIAL AIR FILTERS
Carbon materials from almond shells were developed for the adsorption of microorganisms from air. Samples were processed by means of a one-step process – high-temperature hydro-pyrolysis. Studies were carried out in a wide temperature range of 600-900 °C. As a result, carbonates with predominant micro- and mesopores were obtained. The samples were impregnated with zinc, silver, iron and copper 5% by weight. The obtained samples were characterized by XDR, BET, scanning electron spectroscopy and elemental analysis. The final products are distinguished by a moderate surface and the presence of nanosized metal particles. The antibacterial properties of the activated carbon composites were examined using standard methodology under dynamic contact conditions and Escherichia coli K12 as test microorganism. All tested composite materials exhibit strong antibacterial properties after 48 h of contact with microbial cells. Thus the application of these materials in filtering system will be possible solution for successful reduction of microbial cell number. It is assumed that a similar effect can be achieved in an air environment.
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