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- Title
Green Synthesis of Nanosilver Decorated on Ceria Nanorod for the Catalytic Reduction of Methyl Orange.
- Authors
Bui, Thu Ha; Pham, Phuong Khanh Tran; Truong, Thi Be Ta; Do, Ba Long; Ho, Thanh Gia-Thien; Nguyen, Phung Anh; Phan, Hong Phuong; Nguyen, Tri
- Abstract
Herein, a convenient and environment-friendly reduction strategy was employed to attach silver nanoparticles onto ceria nanorods (AgCe). Nanorods were synthesised through a green chemistry approach with varied silver contents and Citrus maxima peel extract as a reducing agent. The resulting AgCe nanocomposites were evaluated for their efficacy in reducing methyl orange (MO) at ambient temperature by employing NaBH4 as a protonating agent. The as-prepared samples were characterised by X-ray diffraction, Fourier transform infrared spectroscopy, X-ray energy-dispersive spectroscopy, Raman spectroscopy, Brunauer–Emmett–Teller method, and high-resolution transmission electron microscopy. The as-prepared sample exhibited outstanding activity on the catalytic reduction of MO, and the synergistic effect between Ag nanoparticles and CeO2 nanorods was proved. Silver nanoparticles were formed and dispersed well on the surface of ceria nanorods. Based on the UV–Vis results, the activity of the samples with silver was superior to that of pure ceria. The 0.2AgCe sample was the most effective when the catalyst concentration was 0.08 g/L, and the molar ratio between MO and NaBH4 was 1/200. The entire catalytic reduction was thought to follow pseudo-first-order kinetics. Hence, Ag nanoparticles decorated on CeO2 efficiently offered excellent catalytic efficiency and stability in MO reduction and that the catalyst was suitable for practical applications, such as wastewater treatment.
- Subjects
NANORODS; CATALYTIC reduction; PUMMELO; SUSTAINABLE chemistry; CERIUM oxides
- Publication
Arabian Journal for Science & Engineering (Springer Science & Business Media B.V. ), 2024, Vol 49, Issue 6, p7851
- ISSN
2193-567X
- Publication type
Article
- DOI
10.1007/s13369-023-08468-3