▎ 摘 要
Herein, a novel ceramic tubular supported graphene-polydimethylsiloxane nanocomposite (CT/Gr-PDMS) membranes were fabricated via dip-coating method with various graphene contents (0-0.5 wt%) using tetraethylorthosilicate as the crosslinking agent. The characterizations of graphene-polydimethylsiloxane nanocomposite (Gr-PDMS) were analyzed by Fourier-transform infrared spectroscopy, X-ray diffraction spectroscopy, Raman spectroscopy, differential scanning calorimetry, thermogravimetric analysis, scanning electron microscopy, and transmission electron microscopy. The CT/Gr-PDMS membranes were used to separate the furfuralwater mixture via pervaporation (PV) technology. The effects of operating conditions, such as feed concentration, feed temperature, and operation time on the PV performance of CT/0.2Gr-PDMS membrane, which were investigated via a one-factor-at-a-time approach. The PV performance of CT/0.2Gr-PDMS membrane revealed permeate flux (J) of 0.63 kg/m2h, separation factor (alpha) of 85.65, and PV separation index (PSI) of 53.7 kg/m2h in the appropriate operating condition as feed concentration of 2 wt% at 50 degrees C for 5 h. Moreover, this work has shown the promising potential of the CT/0.2Gr-PDMS membrane in providing PV technology with a high furfural separation performance.