A bipolar membrane with specific cation exchange and anion exchange properties between the two layers enables design of photocatalytically active membrane which also separate reaction compartments. The key advantage of such a membrane lies in the separation of oxidation and reduction processes while continue to engage in the photodriven reactions. The example of simultaneous oxidation of 4-chlorophenol and the reduction of 4-nitrophenol under visible light irradiation of the BPM-CdS/Pd shows its effectiveness in photocatalytic remediation of chemical contaminants. The CdS-Pd based bipolar membrane to carry out selective reduction and oxidation processes has also allowed us estimate the contribution of sacrificial donor oxidation in H₂ production in water photoelectrolysis. The design and photocatalytic properties of this photocatalytic membrane will be discussed.