%0 Journal Article
%A Oliva, Maria Angeles
%A Giraldo, David
%A Almodova,r Paloma
%A Martín, Francisco
%A López García, María Luisa
%A Pavlovic, Ilvana
%A Sanchez, Luis
%T Designing a NiFe-LDH/MnO2 heterojunction to improve the photocatalytic activity for NOx removal under visible light
%D 2024
%@ 1385-8947
%U https://hdl.handle.net/20.500.14352/112388
%X 2D/2D heterojunctions between ultrathin NiFe-CO3 layered double hydroxide (LDH) and varying amounts of  birnessite (δ-MnO2) were prepared using an environmentally friendly and cost-effective self-assembly method. The prepared samples have proven to be efficient in their application, mitigating NOx emissions via a photo-oxidative process. The effective creation of 2D/2D NiFe–LDH/MnO2 heterojunctions has been verified through a variety of characterisation techniques, such as XRD, FT-IR, TGA, XFR, N2 adsorption–desorption isotherms, HRTEM and SEM images, EDX, and XPS. Photocatalytic measurements have indicated that the heterojunction formed between NiFe-LDH and MnO2 modifies its photoconductive behaviour, significantly enhancing the visible light photocatalytic performance of the partners. Finally, the optimal relationship between NiFe-LDH and MnO2 in the photocatalytic process was studied. It was found that a ratio of 10:1, respectively, exhibited superior  properties compared to the other composites, highlighting the best performance in the degradation of NO under  visible light and notable stability during the recycling process.
%~