| 冯发祥,苏诗,董桂林,师强,廖鑫怡,符瑞,韩润林.聚酰亚胺/氧化铈有机无机杂化膜的制备研究[J].井冈山大学自然版,2024,45(6):36-42 |
| 聚酰亚胺/氧化铈有机无机杂化膜的制备研究 |
| PREPARATION OF POLYIMIDE/CERIUM OXIDE ORGANIC-INORGANIC HYBRID MEMBRANE |
| 投稿时间：2024-05-21 修订日期：2024-07-20 |
| DOI：10.3969/j.issn.1674-8085.2024.06.006 |
| 中文关键词: 浸没沉淀相转化法 聚酰亚胺膜 氧化铈 有机无机杂化膜 交联改性 |
| 英文关键词: immersion precipitation phase inversion method polyimide membrane cerium oxide organic-inorganic hybrid membrane cross-linking modification |
| 基金项目:国家自然科学基金项目(22366021)；江西省双千计划创新领军人才项目(jxsq2020101049) |
| 作者 | 单位 | E-mail | | 冯发祥 | 井冈山大学化学化工学院, 江西, 吉安 343009 | | | 苏诗 | 井冈山大学化学化工学院, 江西, 吉安 343009 | | | 董桂林 | 井冈山大学化学化工学院, 江西, 吉安 343009 | | | 师强 | 井冈山大学化学化工学院, 江西, 吉安 343009 | | | 廖鑫怡 | 井冈山大学化学化工学院, 江西, 吉安 343009 | | | 符瑞 | 井冈山大学化学化工学院, 江西, 吉安 343009 | | | 韩润林 | 井冈山大学化学化工学院, 江西, 吉安 343009 | hanrunlin@163.com |
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| 中文摘要: |
| 实验以聚合物聚酰亚胺（PI）为膜材料，纳米氧化铈（CeO2）为无机添加剂，以水为凝胶浴试剂，采用浸没沉淀相转化法（NIPS）制备了PI/CeO2有机无机杂化膜，并采用多胺对杂化膜进行化学交联处理。以染料刚果红和CuCl2溶液为目标污染物测试杂化膜的性能。实验结果表明，在CeO2含量为1.0 wt %、交联剂浓度为1.273 g/L、交联时间为15 min、交联温度为80 ℃时，杂化膜在室温和0.3 MPa压力下对Cu2+的截留率为15.9 %，对染料刚果红截留率为99.6 %，膜通量为25.3 L/（m2·h）。还进一步探究了在此条件下制备的杂化膜对其它染料的处理效果。最后，用扫描电子显微镜（SEM）分别观察PI膜和PI/CeO2有机无机杂化膜的表面结构。 |
| 英文摘要: |
| Polyimide(PI)/CeO2 hybrid membranes were prepared by immersion precipitation phase transformation (NIPS) using polymer PI as raw material and cerium oxide (CeO2) as inorganic additive material while water was used as coagulation agent. After that, the hybrid membrane was chemically cross-linked with amine, and the dye Congo red and CuCl2 solution were used as the target pollutants for interception treatment to test the performance of the hybrid membrane. The results showed that when CeO2 content was 1.0 wt %, crosslinking agent concentration was 1.273 g/L, crosslinking time was 15 min, crosslinking temperature was 80 ℃, the rejection rate of Cu2+ and dye Congo red was 15.9 % and 99.6 %, respectively, at room temperature and pressure of 0.3 MPa. The membrane flux was 25.3 L/(m2·h). Moreover, the treatment effect of the hybrid membrane on other dyes was further investigated. Finally, the surface structures of PI membrane and PI/CeO2 organic-inorganic hybrid membrane were observed by scanning electron microscope (SEM). |
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