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首页> 外文期刊>Cogent Chemistry >Functionalized of wax-magnetic nanocomposite (Fe3O4/PE) pellets by radiation grafting of PAAc for safe dye removal
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Functionalized of wax-magnetic nanocomposite (Fe3O4/PE) pellets by radiation grafting of PAAc for safe dye removal

机译：通过PAAc的辐射接枝功能将蜡磁性纳米复合材料（Fe3O4 / PE）颗粒功能化，以安全地去除染料

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Gamma radiation has been used for the fabrication of polyethylene (PE) wax from low density polyethylene pellets composited with 30wt% magnetic oxide Fe_(3)O_(4) nanoparticles. The surface of (PE/Fe_(3)O_(4)) pellets was grafted by acrylic acid AAc using gamma irradiation techniques. A polarity of COOH groups support (PE/Fe_(3)O_(4)) uses, where functionalization give it facilities to be ready in hydrophilic and/or hydrophobic environments and increasing the capability in adsorbing wide variety of dyes molecules. Wax increases the stability and this will help to improve the recyclability of (PE-g-PAAc)/Fe_(3)O_(4); recyclability is also helped by Fe_(3)O_(4), compared to traditional dye adsorbents. The grafted polyethylene wax can serve as a good adsorbent support for a large variety of dyes. The chemical structure of the modified PE surface was achieved by a grafting process using attenuated total reflectance–Fourier transform infrared spectroscopy (ATR-FTIR). Samples of (PE-g-PAAc)/Fe_(3)O_(4) have been characterized for water uptake and surface morphology using a scanning electron microscope (SEM); the crystal structure has been determined using X-ray diffraction; and dye removal efficiency was assessed using toluidine blue (TB) as a model.
机译：伽马辐射已用于由低密度聚乙烯粒料与30wt％磁性氧化物Fe_（3）O_（4）纳米粒子复合而成的聚乙烯（PE）蜡的制造。 （PE / Fe_（3）O_（4））颗粒的表面通过γ射线辐照技术通过丙烯酸AAc接枝。使用极性为COOH的基团支持（PE / Fe_（3）O_（4）），其中官能化为其提供了在亲水和/或疏水环境中易于使用的便利，并增加了吸附各种染料分子的能力。蜡增加了稳定性，这将有助于提高（PE-g-PAAc）/ Fe_（3）O_（4）的可回收性;与传统的染料吸附剂相比，Fe_（3）O_（4）还有助于回收利用。接枝的聚乙烯蜡可以作为多种染料的良好吸附载体。通过使用衰减的全反射-傅里叶变换红外光谱（ATR-FTIR）的接枝工艺，可以实现改性PE表面的化学结构。 （PE-g-PAAc）/ Fe_（3）O_（4）的样品已利用扫描电子显微镜（SEM）表征了吸水率和表面形态。用X射线衍射确定晶体结构。并以甲苯胺蓝（TB）为模型评估染料的去除效率。

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