New Family of Plasmonic Photocatalysts without Noble Metals

• DOI: 10.1021/acs.chemmater.8b04185
• Publication Date: 2019-03-14T19:59:36Z
• Authors: Dongyang Wan; Bixing Yan; Jianqiang Chen; Shuyang Wu; Jindui Hong; Dongsheng Song; Xiaoxu Zhao; Xiao Chi; Shengwei Zeng; Zhen Huang; Changjian Li; Kun Han; Wenxiong Zhou; Yu Cao; Andrivo Rusydi; Stephen J. Pennycook; Ping Yang; Ariando; Rong Xu; Qing-Hua Xu; X. Renshaw Wang; Thirumalai Venkat...
• Keywords: Noble metal; Visible spectrum

Efficient photocatalysis is important for sustainable energy. Recently, an unconventional photocatalyst based on intrinsic plasmon, called plasmonic (IPP), seems promising higher efficiency in hydrogen evolution. This catalyst to benefit from the advantages of visible light absorption, plasmon-assisted hot carrier generation, and good catalytic stability over conventional semiconductor photocatalysts. In this work, we report relative evolution under irradiation a family IPP alkaline earth niobates (MNbO3, where M = Ca, Sr, or Ba), with CaNbO3 > SrNbO3 BaNbO3. The contributions electron–phonon coupling time constant solar energy absorption are identified as key our comprehensive study characterization density (1022 cm–3), plasmon dynamics, surface area. demonstrates generic approach create IPPs further validates role by resonance enhancement photocatalytic efficiency.