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Effective preparation of magnetic superhydrophobic Fe3O4/PU sponge for oil-water separation

机译：有效制备磁性超疏水Fe3O4 / PU海绵用于油水分离

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摘要

Fe3O4 nanoparticles were modified by tetraethoxysilane and different amounts of trimethoxy (1H, 1H, 2H, 2H-heptadecafluorodecyl) silane in sequence to obtain the magnetic nanoparticles with low surface energy, which could be used to construct the superhydrophobic surfaces for PU sponge, cotton fabric, and filter paper by a simple drop-coating method. Particularly, all the resultant Fe3O4/PU sponges containing different fluoroalkylsilane-modified Fe3O4 nanoparticles possessed both high water repellency with contact angle in the range of 150.2-154.7. and good oil affinity, which could not only effectively remove oil from water followed by convenient magnetic recovery but also easily realize the oil-water separation as a filter only driven by gravity. The Fe3O4/PU sponges showed high absorption capability of peanut oil, pump oil, and silicone oil with the maximum absorptive capacities of 40.3, 39.3, and 46.3 g/g, respectively. Such novel sponges might be a potential candidate for oil-water separation as well as oil absorption and transportation accompanied by the advantages of simple process, remote control by magnetic field, and low energy consumption. (C) 2017 Published by Elsevier B.V.
机译：用四乙氧基硅烷和不同量的三甲氧基（1H，1H，2H，2H-十七氟癸基）硅烷对Fe3O4纳米粒子进行改性，得到低表面能的磁性纳米粒子，可用于构建PU海绵，棉织物的超疏水表面，然后通过简单的滴涂方法过滤纸。特别地，所有包含不同氟代烷基硅烷改性的Fe 3 O 4纳米颗粒的所得Fe 3 O 4 / PU海绵均具有高疏水性，接触角在150.2-154.7范围内。良好的油亲和性，不仅可以有效地从水中去除油，然后方便地进行磁回收，还可以轻松实现油水分离，成为仅靠重力驱动的过滤器。 Fe3O4 / PU海绵对花生油，泵油和硅油的吸收能力很高，最大吸收能力分别为40.3、39.3和46.3 g / g。这种新颖的海绵具有工艺简单，磁场远程控制和低能耗的优点，可能是油水分离以及油吸收和运输的潜在候选者。 （C）2017由Elsevier B.V.发布

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  • 来源
    《Applied Surface Science》 |2018年第ptab期|56-64|共9页
  • 作者

    Li Zeng-Tian; Lin Bo; Jiang Li-Wang; Lin En-Chao; Chen Jian; Zhang Shi-Jie; Tang Yi-Wen; He Fu-An; Li De-Hao;

  • 作者单位

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Coll Chem Engn, Maoming 525000, Guangdong, Peoples R China;

    Guangdong Univ Petrochem Technol, Technol & Dev Ctr Petrochem Pollut Control & Reso, Maoming 525000, Guangdong, Peoples R China;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Fe3O4/PU sponge; Superhydrophobic; Magnetic; Oil-water separation;

    机译：Fe3O4 / PU海绵;超疏水;磁性;油水分离;

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