Development of MoS2/Graphene on Carbon Cloth Electrode for Simultaneous Wastewater Treatment and Hydrogen Production Using Water Splitting

In recent year, there has been increasing interest in finding solution for the efficient removal of organic contaminants in wastewater and hydrogen production as an alternative energy. In this study, we developed an electrode which is capable of treating organic compounds in wastewater and generating hydrogen by water splitting at the same time. Carbon cloth (CC) is used as an electrode substrate to overcome cost issue of noble metal electrode substrate and catalysts. To overcome limitations of CC such as low conductivity and low active site, the high electrical conductivity of graphene and the large amount of active sites of MoS₂ were synthesized on CC substrate via chemical vapor deposition method. As the result, MoS₂/graphene-CC electrode showed better hydrogen evolution performance than bare-CC and MoS₂-CC. Moreover, we confirmed that the organic compound in artificial wastewater electrolyte was decomposed after electrochemical reactions. We expected to use MoS₂/graphene-CC electrode for wastewater treatment and hydrogen evolution by electrolysis.