El-Said Waleed A, Choi Jin-Ha, Hajjar Dina, Makki Arwa A, Choi Jeong-Woo
Department of Chemistry, College of Science, University of Jeddah, Jeddah 21589, Saudi Arabia.
Department of Chemical and Biomolecular Engineering, Sogang University, Seoul 04107, Korea.
Polymers (Basel). 2022 Jan 3;14(1):183. doi: 10.3390/polym14010183.
Recently, more and more attention has been paid to the development of eco-friendly solid sorbents that are cost-effective, noncorrosive, have a high gas capacity, and have low renewable energy for CO capture. Here, we claimed the fabrication of a three-dimensional (3D) film of hollow nanocones with a large surface area (949.5 m/g), a large contact angle of 136.3°, and high surface energy. The synthetic technique is based on an electrochemical polymerization process followed by a novel and simple strategy for pulling off the formed layers as a membrane. Although the polymer-coated substrates were reported previously, the membrane formation has not been reported elsewhere. The detachable capability of the manufactured layer as a membrane braked the previous boundaries and allows the membrane's uses in a wide range of applications. This 3D hollow nanocones membrane offer advantages over conventional ones in that they combine a π-electron-rich (aromatic ring), hydrophobicity, a large surface area, multiple amino groups, and a large pore volume. These substantial features are vital for CO capturing and storage. Furthermore, the hydrophobicity characteristic and application of the formed polymer as a CO sucker were investigated. These results demonstrated the potential of the synthesized 3D hollow polymer to be used for CO capturing with a gas capacity of about 68 mg/g and regeneration ability without the need for heat up.
最近，越来越多的关注集中在开发具有成本效益、无腐蚀性、气体容量高且用于二氧化碳捕获的可再生能源需求低的环保型固体吸附剂上。在此，我们宣称制备了一种具有大表面积（949.5平方米/克）、136.3°的大接触角和高表面能的三维（3D）中空纳米锥薄膜。合成技术基于电化学聚合过程，随后采用一种新颖且简单的策略将形成的层剥离成膜。尽管之前有聚合物涂层基板的报道，但膜的形成在其他地方尚未见报道。制造的层作为膜的可分离能力突破了先前的界限，并使该膜能够在广泛的应用中使用。这种3D中空纳米锥膜比传统膜具有优势，因为它们结合了富含π电子（芳香环）、疏水性、大表面积、多个氨基和大孔体积。这些显著特征对于二氧化碳的捕获和储存至关重要。此外，还研究了形成的聚合物作为二氧化碳吸附剂的疏水性特征和应用。这些结果表明，合成的3D中空聚合物具有用于二氧化碳捕获的潜力，气体容量约为68毫克/克，且无需加热即可再生。
