Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
g-C3N4 foam/Cu2O QDs with excellent CO2 adsorption and synergistic catalytic effect for photocatalytic CO2 reduction
Abstract A unique heterostructure is developed based on a 3D photoactive semiconductor and a 0D Cu2O QDs for superb photocatalytic reduction CO2 into CO. It reported a novel and simple method to prepare a 3D g-C3N4 foam with micron-sized porous structures using ultrastable foam as a soft template for the first time. Moreover, Cu2O QDs are loaded onto 3D g-C3N4 foam through a simple photodeposition strategy. Systematically characterization demonstrated that g-C3N4 foam not only act as an excellent carrier for Cu2O QDs, but also greatly improve the photocatalytic performance by enhancing CO2 adsorption and gas transfer. Simultaneously, the rationally designed g-C3N4 foam/Cu2O QDs exhibited notablely enhancement in photocatalytic performance with 3.9 times and 11 times higher than that of g-C3N4 foam and bulk g-C3N4 powder. The excellent photocatalytic activity can be attributed to the unique porous structure and the synergistic effect between g-C3N4 foam and Cu2O QDs, which can speed up the transfer of charge carriers and urged the cumulation of photo-generated electrons on the Cu2O QDs. Our work provides new ideas for constructing 0D/3D hierarchical photocatalytic systems, which may provide guidance on designing efficient photocatalysts to maximize photocatalyst kinetics.
Graphical abstract Display Omitted
Highlights Cu2O QDs modified 3D g-C3N4 foam was facilely synthesized. Photocatalytic reduction CO2 was enhanced by excellent CO2 adsorption performance. Synergistic effect between g-C3N4 foam and Cu2O QDs was proposed in this system.
g-C3N4 foam/Cu2O QDs with excellent CO2 adsorption and synergistic catalytic effect for photocatalytic CO2 reduction
Abstract A unique heterostructure is developed based on a 3D photoactive semiconductor and a 0D Cu2O QDs for superb photocatalytic reduction CO2 into CO. It reported a novel and simple method to prepare a 3D g-C3N4 foam with micron-sized porous structures using ultrastable foam as a soft template for the first time. Moreover, Cu2O QDs are loaded onto 3D g-C3N4 foam through a simple photodeposition strategy. Systematically characterization demonstrated that g-C3N4 foam not only act as an excellent carrier for Cu2O QDs, but also greatly improve the photocatalytic performance by enhancing CO2 adsorption and gas transfer. Simultaneously, the rationally designed g-C3N4 foam/Cu2O QDs exhibited notablely enhancement in photocatalytic performance with 3.9 times and 11 times higher than that of g-C3N4 foam and bulk g-C3N4 powder. The excellent photocatalytic activity can be attributed to the unique porous structure and the synergistic effect between g-C3N4 foam and Cu2O QDs, which can speed up the transfer of charge carriers and urged the cumulation of photo-generated electrons on the Cu2O QDs. Our work provides new ideas for constructing 0D/3D hierarchical photocatalytic systems, which may provide guidance on designing efficient photocatalysts to maximize photocatalyst kinetics.
Graphical abstract Display Omitted
Highlights Cu2O QDs modified 3D g-C3N4 foam was facilely synthesized. Photocatalytic reduction CO2 was enhanced by excellent CO2 adsorption performance. Synergistic effect between g-C3N4 foam and Cu2O QDs was proposed in this system.
g-C3N4 foam/Cu2O QDs with excellent CO2 adsorption and synergistic catalytic effect for photocatalytic CO2 reduction
Sun, Zhimin (Autor:in) / Fang, Wei (Autor:in) / Zhao, Lei (Autor:in) / Chen, Hui (Autor:in) / He, Xuan (Autor:in) / Li, Weixin (Autor:in) / Tian, Pan (Autor:in) / Huang, Zhaohui (Autor:in)
04.06.2019
Aufsatz (Zeitschrift)
Elektronische Ressource
Englisch
| DOAJ | 2019
Photocatalytic reduction of CO2 using nanostructured Cu2O with foam-like structure
| British Library Online Contents | 2016
Photocatalytic reduction of CO2 using nanostructured Cu2O with foam-like structure
| British Library Online Contents | 2016