生物基聚苯并恶嗪改性棉海绵用于增塑剂吸收和油水分离,ACS Applied Polymer Materials

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生物基聚苯并恶嗪改性棉海绵用于增塑剂吸收和油水分离
ACS Applied Polymer Materials ( IF 4.4 ) Pub Date : 2022-01-18 , DOI: 10.1021/acsapm.1c01408
Thirukumaran Periyasamy ₁ , Shakila Parveen Asrafali ₁ , Rajesh Haldhar ₁ , Santhamoorthy Madhappan ₁ , Ramkumar Vanaraj ₁ , Chaitany Jayprakash Raorane ₁ , Seong-Cheol Kim ₁

Affiliation

海洋环境中的塑料污染和工业产生的含油废水现在被认为是一种真正的威胁，因为它们对环境产生不利影响，并对生物体造成健康问题。然而，目前用于油/水分离和增塑剂去除的方法既复杂又昂贵。在这方面，已经开发了一种低成本和环境友好的超疏水/超亲油材料。涂有聚苯并恶嗪 (Pbz) 和硬脂酸功能化碳球 (CBS) [即 CS-Pbz-CBS] 的棉海绵 (CS) 用作超疏水/亲油材料。通过用 Pbz-CBS 对 CS 进行表面改性，亲水性 CS 转变为具有 153° 水接触角的超疏水性 CS-Pbz-CBS。表面形态研究表明，CS-Pbz-CBS 材料由于调整其表面成分和表面粗糙度而产生选择性润湿性。除此之外，所制备的材料 CS-Pbz-CBS (6%) 还具有优异的机械耐久性，能够快速有效地分离油水混合物，并可作为去除增塑剂的有效材料。此外，制备的材料 CS-Pbz-CBS (6%) 具有体积吸收能力，_{对于 CHCl 3 ，}Q _w (v/v) 为 83.51，为油/水混合物提供 95% 的分离效率。分析了与这些材料的制备及其在油/水分离和除增塑剂中的适用性有关的详细调查。

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Modified Cotton Sponge with Bio-Based Polybenzoxazine for Plasticizer Absorption and Oil–Water Separation

Plastic pollution in the marine environment and oily wastewater generated in industry are now recognized as a real threat, as they adversely affect the environment and cause health issues to living organisms as well. Nevertheless, the current methods for both oil/water separation and plasticizer removal are complex and costly. In this regard, a low-cost and environment-friendly superhydrophobic/superoleophilic material has been developed. Cotton sponge (CS) coated with polybenzoxazine (Pbz) and stearic acid-functionalized carbon balls (CBS) [i.e., CS-Pbz-CBS] acts as a superhydrophobic/oleophilic material. By employing surface modification of CS with Pbz-CBS, the hydrophilic CS gets transformed into superhydrophobic CS-Pbz-CBS possessing a water contact angle of 153°. A surface morphological study indicated the selective wettability produced by CS-Pbz-CBS materials as a result of tuning their surface composition and surface roughness as well. In addition to it, the prepared material CS-Pbz-CBS (6%) also possesses excellent mechanical durability, exhibits fast and efficient separation of oil–water mixtures, and can act as an effective material for plasticizer removal. Moreover, the prepared material, CS-Pbz-CBS (6%), has a volumetric absorption capacity, Q_w(v/v), of 83.51 for CHCl₃ and provides a 95% separation efficiency for oil/water mixtures. The detailed investigation related to the preparation of these materials and their applicability in oil/water separation and plasticizer removal is analyzed.

更新日期：2022-02-11

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