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Surface nanobubbles on the carbonate mineral dolomite

机译:碳酸盐矿物白云石表面的纳米气泡

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Surface nanobubbles are of wide interest to a number of research fields, ranging from mineral processing to metamaterials. Their formation on hydrophobic surfaces has long been confirmed but the factors controlling their size and location are less well understood. In this work we investigate, using non-contact atomic force microscopy, the properties of surface nanobubbles on the mineral dolomite under three aqueous solutions; water, depressant and collector. Nanobubbles were observed under all three conditions, but with the highest density observed under collector conditions. Analysis of the critical angle of the bubbles suggests that the collector does not affect the surface tension of the bubbles, but instead does affect their pinning, consistent with the observed increased density.
机译:从矿物加工到超材料,表面纳米气泡在许多研究领域中引起了广泛兴趣。早已证实了它们在疏水表面上的形成,但是控制它们的大小和位置的因素却鲜为人知。在这项工作中,我们使用非接触原子力显微镜研究了三种水溶液下矿物白云石表面纳米气泡的特性。水,抑制剂和收集剂。在所有三个条件下均观察到纳米气泡,但在收集器条件下观察到最高密度。对气泡的临界角的分析表明,收集器不会影响气泡的表面张力,而是会影响气泡的固定,这与观察到的密度增加一致。

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