Controllable in‐situ Synthesis of Cu–Cu2O Heterostructures with Enhanced Visible‐light Photocatalytic Activity. Issue 38 (14th October 2018)

• Record Type: Journal Article
• Authors: Ma, Bo; Kong, Chuncai; Lv, Jian; Zhang, Weixin; Guo, Jian; Zhang, Xiaojing; Yang, Zhimao; Yang, Sen
• Is Part Of: ChemistrySelect. Volume 3:Issue 38(2018)
• Page Start: 10641
• Page End: 10645
• Publication Date: 2018-10-14
• Subjects: Cuprous oxide -- Heterostructures -- In-situ -- Photoca-talytic activity -- Visible-light; Chemistry -- Periodicals; 540.5
• DOI: 10.1002/slct.201802880
• Languages: English
• ISSNs: 2365-6549

Abstract

Abstract: The activity of heterogeneous catalysis depends on charge transfer from catalyst surface to adsorbed molecules. Thus the influence of nanoparticle‐loaded heterostructures and core‐shell heterostructures on photocatalytic performance is significant to be demonstrated. In this work, Cu–Cu2 O heterostructures were controllably synthesized by in‐situ reduction of Cu nanoparticles from octahedral Cu2 O crystals and forming nanoparticle‐loaded heterostructures (partial coverage I and partial coverage II) and the core‐shell heterostructure (full coverage) by controlling the reaction time. The results indicate that optimal size and quantity of the loaded nanoparticles are required to attain the desirable performance by effectively separating and transferring photo‐excited carriers. Abstract : Here we report a controllable two‐step synthesis method to design and fabricate Cu–Cu2 O heterostructures, including the nanoparticle‐loaded structure and the core‐shell structure. It was found that optimal size and quantity of the loaded Cu nanoparticles could attain best photocatalytic performance.