Transfer Charge and Energy of Ag@CdSe QDs-rGO Core–Shell Plasmonic Photocatalyst for Enhanced Visible Light Photocatalytic Activity

• DOI: 10.1021/acsami.5b06997
• Publication Date: 2015-11-25T17:12:52Z
• Authors: Mingjun Zhou; Jinze Li; Zhefei Ye; Changchang Ma; Huiqin Wang; Pengwei Huo; Weidong Shi; Yongsheng Yan
• Keywords: Visible spectrum

Plasmonic heteronanostructures in semiconductor type display extraordinary photocatalytic efficiency induced by the plasmonic energy that operates Ag@CdSe-rGO hybrid ternary composites. The obtained photocatalysts nanoscale were fabricated using a one-step hydrothermal method, during which situ nucleation of Ag@CdSe core-shell nanoparticles and reduction GO to rGO occurred simultaneously. Three different roles Ag core junction synergistic properties arising from introduced jointly enhanced optical CdSe. Localized plasmon resonance (LPR) effects contribute separation photogenerated e(-)/h(+) pairs via electrons resonant transfer. Electrochemical investigations have further confirmed pairs. From comparative experiments Ag/CdSe-rGO, effect nanostructure serves prolong charge under visible light beyond common attached trimers.