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首页> 外文期刊>RSC Advances >Polysulfone metal-activated carbon magnetic nanocomposites with enhanced CO(2)capture
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Polysulfone metal-activated carbon magnetic nanocomposites with enhanced CO(2)capture

机译：聚砜金属活性炭碳磁性纳米复合材料，具有增强型CO（2）捕获

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摘要

In the present study, polysulfone (PSF)-activated carbon nanocomposites were synthesized by a melt mixing technique. Here, 2 wt% activated carbon (CA, CA-Ni, and CA-Co) was used as filler, and effects on thermal, mechanical, magnetic, morphological, and carbon dioxide capture properties were studied. The pyrolysis of wood sawdust produced carbon materials activated by Co and/or Ni salt. The thermal degradation and the amount of metal in the carbon materials were investigated by thermogravimetric analysis. The maximum degradation temperature showed an improvement of up to 3 degrees C, while the initial degradation temperature decreased up to 4 degrees C with the addition of metal-activated carbons. The values ofT(g)estimated by differential scanning calorimetry appear to be practically identical for pure PSF and its nanocomposites. The elasticity modulus of the nanocomposite shows an enhancement of 17% concerning the neat PSF. The water contact angle showed a decrease with the incorporation of the fillers, indicating the hydrophilic nature of the composite. The carbon dioxide sorption capacity of the nanocomposite showed an enhancement of almost 10% in contrast to neat PSF. Ferromagnetic behavior of the thermoplastic nanocomposite was observed with the introduction of 2.0 wt% metal-carbonized filler. The exceptional magnetic properties, for a thermoplastic material such as polysulfone, make it promising for various industrial applications.
机译：在本研究中，通过熔融混合技术合成聚砜（PSF） - 活化的碳纳米复合材料。这里，使用2wt％活性炭（Ca，Ca-Ni和Ca-Co）作为填料，研究了对热，机械，磁性，形态学和二氧化碳捕获性能的影响。木锯末的热解产生由CO和/或Ni盐激活的碳材料。通过热重分析研究了碳材料中金属的热降解和金属量。最大劣化温度显示出高达3℃的改善，而初始降解温度随​​着金属活化的碳而下降至4℃。通过差示扫描量热法估计的（g）的值似乎几乎与纯PSF及其纳米复合材料相同。纳米复合材料的弹性模量表明，关于整洁PSF的增强17％。随着填料的掺入，水接触角显示，表明复合材料的亲水性质。纳米复合物的二氧化碳吸附能力与整洁的PSF相比，增强近10％。通过引入2.0wt％金属碳化填料，观察到热塑性纳米复合材料的铁磁性行为。用于热塑性材料如多砜材料的卓越磁性，使其对各种工业应用有望。

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  • 来源
    《RSC Advances》 |2020年第57期|共10页
  • 作者

    Nisar Muhammad; Thue Pascal S.; Maghous Myriam B.; Geshev Julian; Lima Eder C.; Einloft Sandra;

  • 作者单位

    Pontifical Catholic Univ Rio Grande do Sul PUCRS Programa Posgrad Engn &

    Tecnol Mat PGETEMA Porto Alegre RS Brazil;

    Fed Univ Rio Grande do Sul UFRGS Inst Chem Av Bento Goncalves 9500 Porto Alegre RS Brazil;

    Pontifical Catholic Univ Rio Grande do Sul PUCRS Programa Posgrad Engn &

    Tecnol Mat PGETEMA Porto Alegre RS Brazil;

    Fed Univ Rio Grande do Sul UFRGS Inst Phys Av Bento Goncalves 9500 Porto Alegre RS Brazil;

    Fed Univ Rio Grande do Sul UFRGS Inst Chem Av Bento Goncalves 9500 Porto Alegre RS Brazil;

    Pontifical Catholic Univ Rio Grande do Sul PUCRS Programa Posgrad Engn &

    Tecnol Mat PGETEMA Porto Alegre RS Brazil;

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  • 正文语种 eng
  • 中图分类 化学;
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