Carbon capture using membrane gas absorption was limited by membrane wetting. In this work, superhydrophobic poly(vinylidene fluoride) (PVDF) membrane contactors were developed through 3D-imprinting and nanoparticle incorporation. Membranes were cast on woven support before phase inversion in a water bath to imprint the micro-roughness. The low-cost and biocompatible calcium carbonate (CaCO₃) nanoparticles were blended into PVDF dope solution to build the hierarchical structure. The nanoparticles were premodified using stearic acid to reduce surface energy or removed using ethylenediaminetetraacetic acid for achieving nanotemplating. The presence of CaCO₃ nanoparticles could be observed using scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy (FTIR). The membrane hydrophobicity, pore size, and porosity were significantly improved due to the addition of CaCO₃ and stearic acid-modified CaCO₃ (SA-CaCO₃). Removing CaCO₃ nanoparticles enlarged the pore size greatly but affected the surface hydrophobicity slightly. The PVDF membrane incorporated with SA-CaCO₃ achieved a CO₂ permeation flux as high as 1.86 ± 0.05 × 10⁻² mol m⁻² s⁻¹ and only showed slight changes in surface hydrophobicity after being immersed in amine solution for 50 h.

使用膜气体吸收的碳捕获受到膜润湿的限制。在这项工作中，通过 3D 压印和纳米颗粒掺入开发了超疏水聚偏氟乙烯 (PVDF) 膜接触器。在水浴中相转化之前，将膜浇铸在编织载体上以印记微粗糙度。将低成本且具有生物相容性的碳酸钙 (CaCO ₃ ) 纳米粒子混合到 PVDF 涂料溶液中以构建分层结构。使用硬脂酸预先修饰纳米颗粒以降低表面能，或使用乙二胺四乙酸去除纳米颗粒以实现纳米模板化。CaCO _3的存在可以使用扫描电子显微镜（SEM）和傅里叶变换红外光谱（FTIR）观察纳米颗粒。_{由于添加了CaCO 3}和硬脂酸改性的CaCO ₃ (SA-CaCO ₃ ) ，膜的疏水性、孔径和孔隙率显着提高。去除CaCO ₃纳米颗粒大大扩大了孔径，但对表面疏水性的影响很小。掺入SA-CaCO ₃的PVDF膜实现了高达1.86±0.05×10 ^-2  mol m ^-2 s ^-1的CO ₂渗透通量，并且在浸入胺溶液50小时后表面疏水性仅显示出轻微变化。