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Performance evaluation of modified fabricated cotton membrane for oil/water separation and heavy metal ions removal
Journal of Vinyl and Additive Technology ( IF 3.8 ) Pub Date : 2021-09-21 , DOI: 10.1002/vnl.21866 Ahmed Abdel‐Hakim 1 , Amira H. Abdella 2 , Magdy W. Sabaa 3 , Hoda Y. Gohar 2 , Riham R. Mohamed 3 , Ferial M. Tera 2
Journal of Vinyl and Additive Technology ( IF 3.8 ) Pub Date : 2021-09-21 , DOI: 10.1002/vnl.21866 Ahmed Abdel‐Hakim 1 , Amira H. Abdella 2 , Magdy W. Sabaa 3 , Hoda Y. Gohar 2 , Riham R. Mohamed 3 , Ferial M. Tera 2
Affiliation
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Preparation of effective membrane with special surface treatment for oil/water separation having promising future and low manufacturing cost. The suggested membrane was fabricated by a simple treatment via increasing the hydrophilicity of the cotton fabric surface. The cotton fabric was impregnated in poly(acrylic acid-co-N-methylol acrylamide), poly(AA-co-NMA), where NMA acts as bonding agent. Sodium hypophosphite (SHP) was added to the modification solution to enhance the bonding between the cotton fabric and the PAA. The modified fabric was thermally dried and cured at different temperatures. It was found that, the presence of 3.5% NMA and addition of 5% SHP to the modification solution then curing at 190°C gave the highest amount of bonded PAA to the cotton fabric. The success of the modification process was confirmed by scanning electron microscope, Fourier transformer infrared and the increase in the contact angle of the cotton fabric after modification. Furthermore, the prepared membrane was evaluated for oil (n-hexane, toluene, and petroleum ether)/water separation and also for heavy metal ions removal (Cd2+ and Co2+). Neutralization of the produced membrane with ammonium hydroxide resulting in a higher contact angle and consequently higher separation efficiency for oil/water mixtures and higher performance for heavy metal ions removal compared to the unneutralized one.
中文翻译：
改性棉膜油水分离去除重金属离子性能评价
制备有效的油水分离特殊表面处理膜，具有广阔的发展前景和较低的制造成本。建议的膜是通过增加棉织物表面的亲水性通过简单处理制成的。棉织物在聚浸渍（丙烯酸-共- ñ -methylol丙烯酰胺），聚（AA-共-NMA)，其中 NMA 充当粘合剂。将次磷酸钠 (SHP) 添加到改性溶液中以增强棉织物与 PAA 之间的粘合。改性织物在不同温度下进行热干燥和固化。结果发现，在改性溶液中加入 3.5% NMA 和 5% SHP，然后在 190°C 下固化，可使棉织物上的 PAA 结合量最高。通过扫描电镜、傅里叶变换红外和改性后棉织物接触角的增加，证实改性工艺成功。此外，所制备的膜对油进行评估（Ñ己烷，甲苯和石油醚）/水分离也为重金属离子去除（CD 2+和Co2+）。与未中和的膜相比，用氢氧化铵中和生产的膜会导致更高的接触角，从而导致更高的油/水混合物分离效率和更高的重金属离子去除性能。
更新日期：2021-11-10
中文翻译：
改性棉膜油水分离去除重金属离子性能评价
制备有效的油水分离特殊表面处理膜，具有广阔的发展前景和较低的制造成本。建议的膜是通过增加棉织物表面的亲水性通过简单处理制成的。棉织物在聚浸渍（丙烯酸-共- ñ -methylol丙烯酰胺），聚（AA-共-NMA)，其中 NMA 充当粘合剂。将次磷酸钠 (SHP) 添加到改性溶液中以增强棉织物与 PAA 之间的粘合。改性织物在不同温度下进行热干燥和固化。结果发现，在改性溶液中加入 3.5% NMA 和 5% SHP，然后在 190°C 下固化，可使棉织物上的 PAA 结合量最高。通过扫描电镜、傅里叶变换红外和改性后棉织物接触角的增加，证实改性工艺成功。此外，所制备的膜对油进行评估（Ñ己烷，甲苯和石油醚）/水分离也为重金属离子去除（CD 2+和Co2+）。与未中和的膜相比，用氢氧化铵中和生产的膜会导致更高的接触角，从而导致更高的油/水混合物分离效率和更高的重金属离子去除性能。
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