Synthesis of g-Bi2MoO6 by Co-precipitation Method and Evaluation for Photocatalytic Degradation of Rhodamine B, Crystal Violet and Orange II Dyes Under Visible Light Irradiation

Abstract

γ-Bismuth molybdate (γ-Bi2MoO6) catalyst has been successfully synthesized by co-precipitation method and followed by calcination using stoichiometry ratio of bismuth nitrate, nitric acid, ammonium molybdate as precursor materials. The synthesized γ-Bi2MoO6 nanoparticles characterized by X-ray diffraction for identifying crystalline phases and particle size, Raman spectroscopy identifies active species during the reaction, Fourier transform infrared spectroscopy is to identify adsorbed species and to study the way in which these species are chemisorbed at the surface of the catalyst, UV-visible diffuse reflectance spectroscopy (UV-DRS) revealed for band energy of semiconductors, Field emission scanning electron microscopy (FE-SEM) is to determine morphology and shape of supported particles and Energy dispersive X-ray analysis (EDX) is for elemental analysis of synthesized nanoparticles. The photocatalytic activity of γ− Bi2MoO6 catalyst evaluated using the degradation of Rhodamine-B, Crystal Violet and Orange II dyes under visible light irradiation at room temperature.

Mechanism insight into the photocatalytic degradation of fluoroquinolone antibiotics by the ZIF-8@Bi2MoO6 heterojunction

“…21-0102 and previous publication. 41 Diffraction peaks at 2 θ of 11.01, 28.35, 33.07, 36.2, 46.73, 55.5, and 58.6° correspond to the crystal planes of (020), (111), (060), (151), (202), (133), and (262), respectively. The characteristic peaks of ZIF-8 appear unclear with major diffraction peaks observed at 2 θ of 7.35, 10.5, 13.03, 16.4, and 18.1°, corresponding to the crystal planes of (110), (200), (211), (310), and (222), respectively.…”

Single-wall and graphene-modified multiwall wasp nest shaped Bi2Mo2O9 self-assembly for performance-enhanced asymmetric supercapacitor

“…In addition, the stretching and deformation modes of Bi–O bonds are associated with a tiny vibrational band at 550 cm −1 . 43…”

“…S-Bi 2 Mo 2 O 9 has a band gap of 3.29 eV, whereas the bandgap of M-Bi 2 Mo 2 O 9 is around 3.28 eV; there is therefore not much variation in its band gap. 43,44…”

“…In addition, the stretching and deformation modes of Bi-O bonds are associated with a tiny vibrational band at 550 cm À1 . 43 3.4. UV-Vis-IR spectroscopy analysis On further magnification, it was observed that micropores had developed within the walls.…”

Selective synthesis of visible light active γ-bismuth molybdate nanoparticles for efficient photocatalytic degradation of methylene blue, reduction of 4-nitrophenol, and antimicrobial activity

“…2 (a be the stretching modes of Bi-O/Bi-O-Mo stretching observed. 29 The FT-IR spectrum of bismuth molybdate NPs synthesized at different pH conditions are presented in Fig. 2(b).…”