Journal
JOURNAL OF ENVIRONMENTAL SCIENCES
Volume 112, Issue -, Pages 331-342Publisher
SCIENCE PRESS
DOI: 10.1016/j.jes.2021.05.008
Keywords
Photocatalytic degradation; Nanomaterials; Paracetamol; Ba1-xB1xFe1-xCu(x)O(3)
Categories
Funding
- Fonds Europeen de Developpement Regional (FEDER)
- CNRS
- Region Hauts-de-France
- Chevreul Institute [FR 2638]
- Ministere de l'Education Nationale de l' Enseignement Superieur et de la Recherche
- [35167NE]
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Nanosized Ba1-xBixFe1-xCuxO3 samples were prepared using the Pechini method. Structural, morphological, surface, and optical characterizations were performed for the prepared samples. Ba0.95Bi0.05Fe0.95Cu0.05O3 sample showed excellent removal efficiency of paracetamol in the photocatalytic degradation experiment.
Nanosized Ba 1- x Bi x Fe 1- x Cu x O 3 (12-50 nm) with x values of 0, 0.01, 0.05, and 0.1 system was prepared using the Pechini method. Structural, morphological, surface and optical characterizations were performed for the prepared samples. Cubic phase was the predominant phase for the undoped BaFeO 3 and Bi and Cu co-doped BaFeO 3 samples. Minor phases of monoclinic Ba 2 Fe 2 O 5 , orthorhombic BaFe 2 O 4 and orthorhombic BaCO 3 were identified for all the prepared samples. Ba 0.95 Bi 0.05 Fe 0.95 Cu 0.05 O 3 sample has the lowest band gap (2.43 eV). 98.1% paracetamol removal was achieved with 0.75 g/L of Ba 0.95 Bi 0.05 Fe 0.95 Cu 0.05 O 3 at pH 9 after 120 min. The paracetamol degradation follows the pseudo first-order kinetics. HO center dot is the main oxidative species responsible for the paracetamol degradation. Gas chromatography- mass spectrometry (GC-MS) analysis was performed at the end of the photocatalytic degradation experiment under optimum operating condition using Ba 0.95 Bi 0.05 Fe 0.95 Cu 0.05 O 3 to explain the reaction mechanism and identify the intermediate by-products which is confirmed by ultraviolet/visible (UV/Vis) spectroscopy study at different reaction times. (c) 2021 The Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences. Published by Elsevier B.V.
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