Affiliation:
1. Department of Industrial Chemistry Graduate School of Engineering Tokyo University of Science 6-3-1 Niijuku Katsushika-ku Tokyo 125-8585 Japan
2. Department of Materials Science and Engineering Graduate School of Science and Engineering Ibaraki University 4-12-1 Nakanarusawa Hitachi Ibaraki 316-8511 Japan
3. Carbon Recycling Energy Research Center Ibaraki University 4-12-1 Nakanarusawa Hitachi Ibaraki 316-8511 Japan
Abstract
AbstractThe photoreforming reaction, which can produce hydrogen simultaneously with the decomposition of organic waste, is a promising method for resolving longstanding global issues such as the depletion of energy resources and climate change. However, ZnS photocatalysts, one of the most optimal catalysts for such reactions, has an inadequate visible‐light response; thus, the extensibility of the reaction is limited. In this study, CdS photocatalysts are prepared from metal–organic framework (MOF) precursors, that is, Cd‐MOFs. The prepared CdS exhibits high hydrogen production activity in the photoreforming of lignocellulosic biomass under quasi‐sunlight conditions. This activity is approximately 13.4 times that of the CdS prepared via the conventional hydrothermal method. Further, CdS can utilize light energy in the visible region of sunlight, providing a high quantum yield and demonstrating the potential for the extensibility of the reaction. The results of this study will facilitate the fabrication of novel materials for sustainable and efficient hydrogen production.