Illustration for the noble metal-free Z-scheme materials towards broadband photocatalytic water splitting (Courtesy of XIONG Yujie and Angewandte Chemie)
To meet the requirements, Xiong research group has developed a facile cation-exchange approach to form Janus-like structures between γ-MnS and Cu7S4 with exposed surfaces and high-quality interfaces without the need of using noble metals. The γ-MnS and Cu7S4 can complementarily absorb light to exhibit the dramatically enhanced photocatalytic hydrogen performance in full solar spectrum. This work provides insights into the surface and interface design of hybrid photocatalysts, and offers a noble metal-free approach to broadband photocatalytic hydrogen production.
Prof. Junfa Zhu made an important contribution to the synchrotron radiation-based photoelectron spectroscopy characterizations in this work. It was published titled as "Noble-Metal-Free Janus-likeStructures by Cation Exchange for Z-SchemePhotocatalytic Water Splitting underBroadbandLight Irradiation". This work was financially supported by the 973 Program, NSFC and CAS Key Research Program of Frontier Sciences.
Publication link: http://onlinelibrary.wiley.com/wol1/doi/10.1002/anie.201700150/full
Prof. XIONG Yujie