121st General Meeting of the KCS

Type Poster Presentation
Area Physical Chemistry
Room No. Event Hall
Time 4월 20일 (금요일) 11:00~12:30
Code PHYS.P-115
Subject Few Layered Black Phosphorus Wrapped Cu7S4 Skeletal Hallow Cage nanohybrid as Effective Solar Light-Driven Photocatalyst for Improved H2 Evolution
Authors Bhavani Palagiri, MADHUSUDANA GOPANNAGARI, PRAVEEN KUMAR DHARANI, EunHwa Kim, Amaranatha reddy, TaeKyu Kim*
Department of Chemistry, Pusan National University, Korea
Abstract Copper-based sulfides are competitive candidates with high efficiency because of their outstanding catalytic activity in reducing Sn2− to nS2− connect with the conductive network to insure conductivity, accelerate the electrolyte transport, and promote fast charge transport as well as diffusion velocity of the redox couple. Thus, we developed the crystallinity-controlled synthesis of nanotwinned polyhedral skeletal type copper sulfide cages (Cu7S4) wrapped with most emerging, economic and environmental friendly few layered black phosphorus (BP) for photocatalytic hydrogen production. The experimental result show the improved hydrogen production i.e., 475 µmol h-1 g-1 for optimal Cu7S4/BP nanohybrid and elucidates a prominent photocatalyst. These skeletal hallow cages of Cu7S4/BP system is a new key factor, fascinating and inspiring topic for photocatalytic water splitting applications. This resultant semiconductor heterostructure can strengthen the interface charge transfer and result in a Z-scheme electron transfer, which can efficiently improve photogenerated separation and photocatalytic activity. To date, BP on the skeletal type Cu7S4 nanocages relevant hydrogen production by catalysis investigation is still unavailable.
E-mail palagiribhavani12@gmail.com