Heterojunction of N/B/RGO and g-C 3 N 4 anchored magnetic ZnFe 2 O 4 @ZnO for promoting UV/Vis-induced photo-catalysis a
- PDF / 1,205,385 Bytes
- 14 Pages / 595.276 x 790.866 pts Page_size
- 55 Downloads / 166 Views
RESEARCH ARTICLE
Heterojunction of N/B/RGO and g-C3N4 anchored magnetic ZnFe2O4@ZnO for promoting UV/Vis-induced photo-catalysis and in vitro toxicity studies Mojtaba Rostami 1,2 & Sepideh Nayebossadr 3 & Shahla Mozaffari 3 & Ali Sobhani-Nasab 4,5 & Mehdi Rahimi-Nasrabadi 6,7 Mahdi Fasihi-Ramandi 6 & Mohammad Reza Ganjali 8,9 & Ghasem Rezanejade Bardajee 3 & Alireza Badiei 2
&
Received: 29 February 2020 / Accepted: 19 August 2020 # Springer-Verlag GmbH Germany, part of Springer Nature 2020
Abstract To promote the low photocatalytic efficiency caused by the recombination of electron/hole pairs and widen the photo-response wavelength window, ZnFe2O4@ZnO-N/B/RGO and ZnFe2O4@ZnO-C3N4 ternary heterojunction nanophotocatalysts were designed and successfully prepared through a sol–gel technique. In comparison to bare ZnFe2O4 and ZnO, the ZnFe2O4ZnO@N/B/RGO and ZnFe2O4@ZnO-C3N4 ternary products showed highly improved photocatalytic properties in the degradation of methyl orange (MO) under ultra-violet (UV) and visible light irradiation. Various physicochemical properties of the photocatalysts were evaluated through field emission scanning electron microscopy (FESEM), energy-dispersive X-ray (EDX) analysis, X-ray diffraction (XRD), UV–visible diffuse reflectance spectroscopy (DRS), Fourier transform infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM) techniques. The observations indicated that the ternary heterojuncted ZnFe2O4@ZnO-N/B/RGO absorbs lower energy visible light wavelengths, which is an enhancement in the photocatalytic properties of ZnFe2O4@ZnO loaded on reduced graphene oxide (RGO) nanosheets and graphite-like carbon nitride (g-C3N4). This gives the catalyst photo-Fenton degradation properties. Keywords Ternary heterojunction photocatalysts . Sol–gel technique . Visible light . Methyl orange . Photodegradation
Introduction g-C3N4 can be described as a metal-free, n-type polymeric semiconducting material with various attractive properties for use in photo-catalysis (Ayodhya and Veerabhadram 2019; Faisal et al. 2018). The optical band gap of g-C3N4
has been measured as 2.7 eV, and the neutral, acidic, or basic mixtures of the material have proven to be stable under irradiation of light. This has been attributed to the strong bonds of the carbon and nitride species (Yan et al. 2010). Although these properties make g-C3N4 a potential candidate for use as a photocatalyst for use in different fields (Hassanzadeh
Responsible Editor: Sami Rtimi * Mehdi Rahimi-Nasrabadi [email protected]; [email protected] 1
Halal Research Center of IRI, FDA, Tehran, Iran
2
School of Chemistry, College of Science, University of Tehran, Tehran, Iran
3
Department of Chemistry, Payame Noor University, Tehran, Iran
4
Social Determinants of Health (SDH) Research Center, Kashan University of Medical Sciences, Kashan, Iran
5
Core Research Lab, Kashan University of Medical Sciences, Kashan, Iran
6
Molecular Biology Research Center, Systems Biology and Poisoning Institute, Baqiyatallah University of M
Data Loading...
