CeO2 foam-like nanostructure: biosynthesis and their efficient removal of hazardous dye

• Published in: Bioprocess and biosystems engineering 2021-03, Vol.44 (3), p.517-523
• Main Authors: Alinaghi Langari, Aliakbar, Soltaninezhad, Simin, Zafarnia, Niloofar, Heidari, Mohammadreza, Varma, Rajender S., Ebrahimi, Zahra, Azhdari, Sara, Borhani, Fariba, Khatami, Mehrdad
• Format: Article
• Language: English
• Subjects: Biosynthesis; Biotechnology; Catalytic activity; Cerium; Cerium oxides; Chemical synthesis; Chemistry; Chemistry and Materials Science; Color removal; Dyes; Environmental Engineering/Biotechnology; Field emission microscopy; Food Science; Hydrogen peroxide; Industrial and Production Engineering; Industrial Chemistry/Chemical Engineering; Nanoparticles; Nanostructure; Photocatalysis; Pollen; Porosity; Raman spectroscopy; Research Paper; Scanning electron microscopy; Ultraviolet radiation; X ray powder diffraction; X-ray diffraction
• ISSN: 1615-7591; 1615-7605
• DOI: 10.1007/s00449-020-02464-9

In this study, CeO 2 (cerium oxide) nanoparticles were synthesized using Pinus halepensis pollen and were characterized by field emission scanning electron microscopy (FESEM), powder X-ray diffraction (PXRD) and Raman spectroscopy. The results showed that the ensuing CeO 2 nanostructures, ranging in size from 5 to 25 nm, had high porosity. Synthesized CeO 2 showed the effective catalytic activity towards the photocatalytic removal of dyes. In this work, the photocatalytic activity to removal dye (methyl violet 2B), in the absence of UV radiation, using cerium dioxide nanoparticles (CeO 2 -NP) was determined. In this research, four main factors such as effect on color, concentration and pH were examined and maximum %R was obtained about was 97% in 75 min in presence of 50 mg of hydrogen peroxide.