Synthesis of corn straw based carbon doped Nb 2 O 5 as photocatalysts for Rhodamine B degradation under visible light illumination

Abstract

Developing efficient visible light photocatalytic materials has always been a challenge for researchers. We have successfully prepared a series of corn straw based carbon doped Nb2O5 with excellent photocatalytic performance under visible light. A series of characterizations were carried out on the synthesized materials, including power X-Ray diffraction(XRD), scan electron miscopy (SEM), nitrogen adsorption, infrared spectroscopy(IR), UV-vis diffuse reflectance spectra, X-ray photoelectron spectroscopy(XPS). The photocatalytic performance of the synthesized samples was investigated under visible light irradiation using Rhodamine B as the degradation target. The experimental results show that the introduction of carbon element has a certain impact on the morphology, specific surface area, pore size distribution, elemental composition, functional groups, and visible light absorption of the sample, which in turn has a significant impact on its photocatalytic performance.This article is of great significance for the application of biomass materials and the improvement of environmental quality, and also provides new ideas for the design and synthesis of new composite functional materials.