Graphene oxide/aminated attapulgite intercalation compound surface modified forward osmosis membrane and preparation method thereof

• Main Authors: WANG JIEFENG, ZHOU QIAN, WANG XINHUA, WANG JIASHENG, ZHAO PIN, HUANG LING
• Format: Patent
• Language: Chinese; English
• Published: 04.04.2023
• Subjects: PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; SEPARATION; TRANSPORTING

The invention discloses a graphene oxide/aminated attapulgite intercalation compound surface modified forward osmosis membrane and a preparation method thereof, and belongs to the technical field of water treatment. The preparation method comprises the following steps: performing interfacial polymerization on a polyethersulfone membrane to obtain a polyamide FO composite membrane, and loading the prepared GO/P-APT intercalation compound onto a polyamide active layer of the polyamide FO composite membrane by adopting a vacuum-assisted deposition method to obtain the GO/P-APT surface modified forward osmosis membrane. According to the GO/P-APT surface modified forward osmosis membrane prepared by the invention, the organic pollution of the FO membrane can be relieved under the condition that the flux is improved. 本发明公开了一种氧化石墨烯/氨基化凹凸棒插层复合物表面改性正渗透膜及其制备方法，属于水处理技术领域。本发明在聚醚砜膜上进行界面聚合得到聚酰胺FO复合膜，采用真空辅助沉积法将制备得到的GO/P-APT插层复合物负载到聚酰胺FO复合膜的聚酰胺活性层上，得到GO/P-APT表面改性正渗透膜。本发明制备的GO/P-APT表面改性正渗透膜可在提高通量的情况下缓解FO膜的有机污染。