Fabrication of pebble stone-like PbMoO4 nanostructure: Focus on photocatalysis, photoluminescence and electron density distribution analysis

• Published in: Physica. B, Condensed matter Vol. 620; p. 413222
• Main Authors: Rajkumar, M., Arunpandian, M., Leeladevi, K., Rameshkumar, P., Arunachalam, S.
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 01-11-2021; Elsevier BV
• Subjects: Charge density analysis; Chemical synthesis; Ciprofloxacin; Density distribution; Diffraction; Electron density; Lead molybdates; Morphology; Nanomaterials; Nanoparticles; PbMoO4; Photodegradation; Photoluminescence; Reaction kinetics; Rietveld refinement analysis; Scanning electron microscopy; Stone; Transmission electron microscopy; UV-light irradiation; X ray powder diffraction; Photodegradation; Rietveld refinement analysis; Charge density analysis; PbMoO4; Ciprofloxacin; UV-light irradiation
• ISSN: 0921-4526; 1873-2135
• DOI: 10.1016/j.physb.2021.413222

In this work, the PbMoO4 nanocatalyst is synthesized by the hydrothermal way. The as-prepared PbMoO4 nanomaterial was confirmed by powder X-ray diffraction (P-XRD), UV–visible diffuse reflectance spectroscopy (UV-DRS), photoluminescence (PL), scanning electron microscopy (SEM) and Transmission electron microscopy techniques (TEM). The scanning Electron Microscope result indicates the pebble stone morphology structure of PbMoO4 nanomaterials. The catalytic performance for as-synthesized PbMoO4 nanomaterial was analyzed by the ciprofloxacin (CIP) degradation process. More interestingly, the as-prepared PbMoO4 material is having higher catalytic performance compared to the other previous PbMoO4 nanoparticles reports with an efficiency of above 92%. A photodegradation mechanism and the reaction kinetics of PbMoO4 nanomaterial were also investigated. The aforesaid results are strong enough to suggest the PbMoO4 nanomaterial may be an effective catalyst for environmental application. In addition, the electron density distributions studies were carried out for this PbMoO4 nanomaterial to explain the bond length value between the atoms.
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•PbMoO4 nanomaterial is fabricated via simple hydrothermal route.•The SEM reveals the good morphology (Pebble stone structure) structure of PbMoO4.•The photocatalyst PbMoO4 enhancing the degradation rate of above 92% for CIP degradation.•The optimum parameters like the effects of different catalyst dosage, pollutant concentration and recycle ability were studied.•Rietveld refinement and charge density distribution analysis of PbMoO4 through JANA – 2006 and dysnomia software’s.