Hydrophilic membranes composed of polyphenylsulfone (PPSU)/polyethylene glycol hexadecyl ether (Brij- 58), with noticeable properties and performance in the filtration of dye solution, were prepared for the first time. Scanning electron microscopy (SEM) images were utilized to examine the morphology of the obtained membranes. Attenuated total reflection Fourier-transform infrared (ATR-FTIR) spectra, water contact angle, water uptake capacity, and tensile properties of the membranes confirmed that Brij-58 remained in the structure of the obtained membranes due to the high molecular weight of the additive. Higher water contact angle and water uptake capacity obtained with increasing the Brij-58 concentration showed enhanced membrane hydrophilicity. The addition of Brij-58 and increasing its concentration was followed by a constant increase in pure water flux (PWF) and antifouling property of the membrane. According to the results, the incorporation of 10 wt% Brij-58 into the polymeric solution contributed to almost 54-fold higher water flux and approximately 36% higher flux recovery ratio (FRR), while the rejection of disperse blue was only slightly reduced.