The FTIR spectra of the pristine and the fouled membranes were measured using a Bruker Vertex 70 FTIR spectrometer (Ettlingen, Germany) equipped with a Platinum ATR single reflection diamond (n = 2.4) crystal-based module in the mid infrared range (400–4000 cm−1). The infrared spectra of the membranes were recorded with a resolution of 4 cm−1 and 32 scans.
The contact angle was determined by the sessile drop method using a DataPhysics OCA 20 goniometer (Filderstadt, Germany). A drop of MilliQ water was manually formed using a micrometer doser, and the drop image was captured using the camera built into the instrument. The volume of the drop was 2 μL at room temperature. To minimize experimental error contact angles were measured at five random locations for each sample and the average value was reported (N = 5).
The contact angle was determined by the sessile drop method using a DataPhysics OCA 20 goniometer (Filderstadt, Germany). A drop of MilliQ water was manually formed using a micrometer doser, and the drop image was captured using the camera built into the instrument. The volume of the drop was 2 μL at room temperature. To minimize experimental error contact angles were measured at five random locations for each sample and the average value was reported (N = 5).