This study systematically investigated and modeled the organic solvent reverse osmosis (OSRO) and pervaporation (PV) performances of bis(triethoxysiyl)acetylene (BTESA)-derived microporous organosilica membranes with different microstructures and permeation properties. BTESA membranes calcined at a low temperature of 100°C exhibited great promise for utility in the challenging OSRO separation of methanol/organic azeotropes such as methanol/toluene and methanol/methyl tert-butyl ether and demonstrated ultrahigh values for both permeating flux and rejection together with good operation stability. In addition, a generalized solution-diffusion model enabled a suitable description of the permeation behaviors of organic solvent molecules through the BTESA membranes irrespective of the use of either OSRO or PV modalities, which allowed us to predict the OSRO performance via PV, and vice versa.

中文翻译：

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使用有机硅膜对有机液体进行反渗透和全蒸发：性能分析和预测

本研究系统地研究和模拟了具有不同微观结构和渗透特性的双（三乙氧基甲硅烷基）乙炔（BTESA）衍生的微孔有机硅膜的有机溶剂反渗透（OSRO）和全蒸发（PV）性能。在 100°C 的低温下煅烧的 BTESA 膜在具有挑战性的 OSRO 分离甲醇/有机共沸物（如甲醇/甲苯和甲醇/甲基叔丁基醚）中显示出巨大的应用前景，并显示出超高的渗透通量和截留率值具有良好的运行稳定性。此外，无论使用 OSRO 或 PV 模式，广义溶液扩散模型都能适当描述有机溶剂分子通过 BTESA 膜的渗透行为，