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Generation of Monodisperse Submicron Water-in-Diesel Emulsions via a Hydrophobic MXene-Modified Ceramic Membrane
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-11-05 , DOI: 10.1021/acs.iecr.0c03837 Huihui Huang 1 , Yuqing Sun 1 , Lele Cui 1 , Yingxiang Ni 1 , Shilong Li 1 , Weihong Xing 1 , Wenheng Jing 1
Industrial & Engineering Chemistry Research ( IF 3.8 ) Pub Date : 2020-11-05 , DOI: 10.1021/acs.iecr.0c03837 Huihui Huang 1 , Yuqing Sun 1 , Lele Cui 1 , Yingxiang Ni 1 , Shilong Li 1 , Weihong Xing 1 , Wenheng Jing 1
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Ceramic membranes for emulsification are generally fabricated by particle stacking. As a result, their small adjacent pore distances and hydrophilicity cause water droplets to coalesce when preparing monodisperse submicron water-in-diesel (W/D) emulsions. Here, we present a two dimensional-modified membrane emulsification model for the first time, with the development of a hydrophobic MXene-modified ceramic membrane with a water contact angle of 144.7 ± 1.2°. Benefiting from their large lateral size, MXene nanomaterials not only increase the distance between channels but also provide longitudinal-lateral transport pathways for dispersed phases. Therefore, the dispersed phase droplets can roll along the interlayer nanochannels of the MXene-modified membrane before converging with the continuous phase, thereby preventing the coalescence of emulsions. The MXene-modified membrane presents an excellent emulsification ability for preparing W/D emulsions, and the resulting diesel emulsions are at a submicron level with a unimodal distribution, an average particle size of 400 nm, and a particle size distribution coefficient of 0.7. This novel MXene-modified membrane for emulsification is of great significance since it provides a simple and promising strategy for the development of monodisperse nano or submicron emulsions.
中文翻译：
疏水性二甲苯改性的陶瓷膜生成单分散亚微米柴油包水乳液
用于乳化的陶瓷膜通常通过颗粒堆叠来制造。结果，当制备单分散的亚微米柴油包水（W / D）乳液时，它们较小的相邻孔距和亲水性会导致水滴聚结。在这里，我们首次提出了二维改性的膜乳化模型，并开发了水接触角为144.7±1.2°的疏水性MXene改性的陶瓷膜。得益于其较大的横向尺寸，MXene纳米材料不仅增加了通道之间的距离，而且还为分散相提供了纵向-横向的传输路径。因此，分散相液滴可以在与连续相会聚之前沿着MXene改性膜的层间纳米通道滚动，从而防止乳液聚结。MXene改性膜具有优异的制备W / D乳液的乳化能力，所得柴油乳液处于亚微米级，具有单峰分布，平均粒径为400 nm，粒径分布系数为0.7。这种新颖的经MXene改性的乳化膜具有重要意义，因为它为开发单分散纳米或亚微米乳液提供了一种简单而有希望的策略。
更新日期：2020-11-18
中文翻译：
疏水性二甲苯改性的陶瓷膜生成单分散亚微米柴油包水乳液
用于乳化的陶瓷膜通常通过颗粒堆叠来制造。结果，当制备单分散的亚微米柴油包水（W / D）乳液时，它们较小的相邻孔距和亲水性会导致水滴聚结。在这里，我们首次提出了二维改性的膜乳化模型，并开发了水接触角为144.7±1.2°的疏水性MXene改性的陶瓷膜。得益于其较大的横向尺寸，MXene纳米材料不仅增加了通道之间的距离，而且还为分散相提供了纵向-横向的传输路径。因此，分散相液滴可以在与连续相会聚之前沿着MXene改性膜的层间纳米通道滚动，从而防止乳液聚结。MXene改性膜具有优异的制备W / D乳液的乳化能力，所得柴油乳液处于亚微米级，具有单峰分布，平均粒径为400 nm，粒径分布系数为0.7。这种新颖的经MXene改性的乳化膜具有重要意义，因为它为开发单分散纳米或亚微米乳液提供了一种简单而有希望的策略。
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