Preparation of GdCoO3 by Sol-Gel Method and Its Photocatalytic Activity. Issue 1 (2nd September 2021)

• Record Type: Journal Article
• Authors: Zhang, Liqin; Chen, Haifeng; Xu, Yaohua; Tang, Peisong; Tong, Yanhua; Ding, Yangbin
• Is Part Of: Integrated ferroelectrics. Volume 219:Issue 1(2021)
• Page Start: 204
• Page End: 210
• Publication Date: 2021-09-02
• Subjects: GdCoO3 -- sol-gel method -- photocatalysis -- simulated sewage; Ferroelectric devices -- Periodicals; Integrated circuits -- Periodicals; 537.244805
• DOI: 10.1080/10584587.2021.1911367
• Languages: English
• ISSNs: 1058-4587

Abstract

Abstract: Using gadolinium nitrate, cobalt acetate, citric acid as main raw materials, GdCoO3 was successfully prepared by sol-gel method. The prepared samples were characterized by thermogravimetric differential scanning analysis (TG-DSC), X-ray diffraction analysis (XRD), scanning electron microscopy (SEM) and Fourier transform infrared spectroscopy(FT-IR). Using methyl orange solution as simulated sewage, it was investigated that the effects of synthesis temperature and illumination time on photocatalytic activity of GdCoO3 . The results show that the pure cubic perovskite GdCoO3 samples can be prepared at calcination temperature of 700 °C to 1000 °C. The GdCoO3 calcined at 900 °C has uniform particles and an average grain size of about 0.5 μm to 1 μm. The photocatalytic performance of GdCoO3 calcined at 900 °C sample was the best. Under the condition of UV-light for 120 min, the photocatalytic degradation rate of methyl orange reached more than 96% in presence GdCoO3 calcined at 900 °C. This indicates that GdCoO3 has good photocatalytic performance.