Effect of Ultraviolet on the Morphology and Performance of PES-Nano-Silica Hybrid Membrane for Produced Water Treatment

Synthesis and Characterization of Nano Hybrid Membrane PES-TiO2 for Biogas Purification: Combination Effect of Ultra Violet and Cross-Linking

“…According to Adib et al the phenomenon occurs because there is a selective hole in the membrane layer which induces for the Knudsen diffusion mechanism resulting in low selectivity and high permeability [15]. This can be seen in Table 1.…”

“…The UV lightinduced the polymer chains to restructure and grafting resulting on the denser polymer. The longer exposure of UV light on the membrane surface, it leads to the polymer chain degradation of polyethersulfone polymer [13][14][15]. As the consequences, the membrane pores will be larger, and the UV treatment increases the permeability.…”

“…While the selectivity shown in Table 2, selectivity does not reach a value greater than 3.75. Adib et al assessed that the low selectivity of the research results was due to a selective hole in the membrane causing the gas flow mechanism occurring in the membrane to be Knudsen diffusion [15]. With the occurrence of Knudsen diffusion will increase CH4 permeability and will reduce the selectivity.…”