Journal
JOURNAL OF ALLOYS AND COMPOUNDS
Volume 866, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.jallcom.2021.158807
Keywords
Ce-SnO2/g-C3N4 composite; Supercapacitors; Photocatalysts; Methylene blue degradation
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Funding
- RUSA 2.0 [Alu/RUSA/PhD Fellowships/2019, 24-51/2014]
- DST-SERB [EMR/2017/001999]
- UGC-SAP [F.530/18/DRS-III/2015]
- DST-FIST [SR/FST/PSI-202/2015]
- DST-PURSE [SR/PURSE Phase 2/38 (G)]
- King Saud University, Riyadh, Saudi Arabia [RSP2020/130]
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Cerium doped SnO2/g-C3N4 composites exhibit excellent electrochemical performance and catalytic activity, making them promising materials for supercapacitors and photocatalysts.
Cerium (Ce) doped SnO2/g-C3N4 composites were synthesized by a facile hydrothermal method. The obtained Ce doped SnO2/g-C3N4 composites were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), UV-visible spectroscopy (UV-Vis), scanning electron microscope (SEM), energy dispersive spectra (EDS), elemental mapping and X-ray photoelectron spectroscopy (XPS). An electrode made of Ce doped SnO2/g-C3N4 exhibited a maximum specific capacitance of 274 F/g at 1 A/g current density. The supercapacitor device fabricated by using Ce-SnO2/g-C3N4//Activated Carbon as electrodes has showed an energy and power densities of 39.3 W h kg(-1) and 7425 W kg(-1). The asymmetric device gives the retention of 84.2% after completing 5000 cycles. When the same, Ce-SnO2/g-C3N4, composite is used as a photo-catalyst for reduction of methylene blue dye under visible light irradiation, exhibits a higher degradation efficiency of 98% which is higher efficiency compared to all other synthesized samples. (C) 2021 Elsevier B.V. All rights reserved.
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