ABSTRACT

In this work, Graphene Oxide (GO) is embedded in both selective hydrophilic layer and porous hydrophobic substrate creating a mutual bridge between the two surfaces. Pristine 1–3 µm microporous PSF prepared via dry/wet phase inversion techniques with contact angle of 74.12° has been further study with GO embedded Pebax dense selective layer. This dual nature thin film nano composite TFNC membranes managed to reduce the water contact angle down to 37.18°. As for the IPA dehydration study, the total flux up to 1.19 kgm⁻²h⁻¹ and 0 wt% IPA detected in permeate was achieved with 20 wt% water feed at 30°C.

中文翻译：

---

用于IPA脱水的超选择性双重性质GO桥接PSF-GO-Pebax薄膜纳米复合膜

抽象的

在这项工作中，氧化石墨烯（GO）嵌入选择性亲水层和多孔疏水基底中，从而在两个表面之间形成了一个共同的桥梁。通过干/湿相转化技术以接触角为74.12°制备的原始1-3 µm微孔PSF，已经在GO嵌入的Pebax致密选择层中进行了进一步研究。这种双重性质的薄膜纳米复合TFNC膜设法将水接触角降低到37.18°。对于IPA脱水研究，在30°C下进水20 wt％时，在渗透液中检测到的总通量达到1.19 kgm ^-2 h ^-1和0 wt％IPA。