Synthesis of g-C3N4/diatomite/MnO2 composites and their enhanced photo-catalytic activity driven by visible light View Full Text


Ontology type: schema:ScholarlyArticle     


Article Info

DATE

2021-04-21

AUTHORS

Ran-Ran Chen, Qi-Fang Ren, Yu-Xin Liu, Yi Ding, Hai-Tao Zhu, Chun-Yu Xiong, Zhen Jin, Won-Chun Oh

ABSTRACT

Herein, a novel visible-light-responsive g-C3N4/diatomite/MnO2 composite was successfully fabricated through a simple redox reaction method. The structure and morphology of the sample are mainly characterized by X-ray diffraction (XRD), photoelectron spectroscopy (XPS), scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), transmission electron microscopy (TEM), and ultraviolet–visible spectroscopy (UV–Vis). In this paper, the photo-catalytic activity of the sample was evaluated by degradation RhB under visible-light irradiation. The results shown that, compared with g-C3N4/diatomite composite, MnO2, g-C3N4, diatomite, the prepared g-C3N4/diatomite/2.5%MnO2 composite exhibits better photo-catalytic activity and stability. At the same time, the effect of different MnO2 additions on the photo-catalytic activity of the composite material was further analyzed. The results indicated that the g-C3N4/MnO2/diatomite composites exhibit highest photo-catalytic activity when the adding amount of MnO2 reached 2.5%. The degradation rate of the g-C3N4/diatomite/2.5%MnO2 is 93% after recycling for three times, showing good stability and reusability. Moreover, the mechanism of catalytic performance enhancement also has been discussed. More... »

PAGES

548-558

Identifiers

URI

http://scigraph.springernature.com/pub.10.1007/s43207-021-00115-7

DOI

http://dx.doi.org/10.1007/s43207-021-00115-7

DIMENSIONS

https://app.dimensions.ai/details/publication/pub.1137371469


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