Over　the　last　few　decades,　ion　exchange　membranes　have　evolved　from　a　laboratory　tool　to　industrial　products　with　significant　technical　and　commercial　impacts.　Electrodialysis　with　bipolar　membranes　(EDBM)　is　a　technology　that　can　produce　acids　and　bases　from　the　corresponding　salt　solutions.　Bipolar　membranes　are　key　factors　for　splitting　water　at　the　interface　of　a　cation　and　anion　exchange　layer　in　an　electric　field.　The　ideal　bipolar　membrane　should　have　a　low　energy　consumption,　a　high　current　efficiency　and　long-term　stability.　In　order　to　investigate　the　catalytic　effect　of　a　monolayer　of　MoS2,　the　bipolar　membranes　were　prepared　by　introducing　monolayer　MoS2　to　the　interface　of　bipolar　membranes.　The　resulting　bipolar　membrane　was　found　to　have　lower　potential　drop,　which　clearly　demonstrates　the　applicability　of　the　MoS2　layer　to　act　as　catalyst.　Enhanced　acid　production　confirmed　this　prediction.　Furthermore,　a　bipolar　membrane　prepared　at　90　°C　had　a　low　swelling　ratio　of　about　7.5%　while　maintaining　a　high　water　uptake　of　71.6%.　From　the　calculation　of　current　efficiency　and　energy　consumption,　the　bipolar　membrane　with　a　monolayer　of　MoS2　has　a　higher　current　efficiency　(45%)　and　a　lower　energy　consumption　(3.6　kW/hkg)　compared　to　a　current　efficiency　of　24%　and　an　energy　consumption　of　6.3　kW/hkg　for　a　bipolar　membrane　without　MoS2.　This　study　proves　the　catalytic　function　of　MoS2,　which　lays　a　foundation　for　further　research　on　catalytic　bipolar　exchange　membranes.　©　2017　Elsevier　B.V.