含氧化石墨烯混合基质反渗透复合膜的制备及性能研究
1. 浙江大学化学工程与生物工程学系,杭州 310027;
2. 第二炮兵后勤科学技术研究所,北京 100011
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摘要
以间苯二胺(MPD)为水相单体、均苯三甲酰氯(TMC)为油相单体,氧化石墨烯(GO)作为水相添加物,采用界面聚合法,制备了GO-PA(聚酰胺)/PSF(聚砜)混合基质反渗透复合膜。采用扫描电子显微镜表征了膜形貌,考察了该膜对氯化钠的截留性能及耐氯性。结果表明,聚酰胺反渗透膜填充氧化石墨烯后,其分离性能优于聚酰胺膜,且具有较好的耐氯性。随着氧化石墨烯含量的增加,膜的通量增大,当添加量为0.005 %时,膜具有最大通量,为63 L/(m2·h)。
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