Investigation of PEG directed Sb2WO6 for dyes removal from wastewater. (March 2022)

• Record Type: Journal Article
• Authors: Keerthana, S.P.; Yuvakkumar, R.; Senthil Kumar, P.; Ravi, G.; Hong, S.I.; Velauthapillai, Dhayalan
• Is Part Of: Chemosphere. Volume 291:Part 1(2022)
• Publication Date: 2022-03
• Subjects: Dye removal -- Photocatalyst -- Polyethylene glycol -- Rhodamine B -- Sb2WO6.; Pollution -- Periodicals; Pollution -- Physiological effect -- Periodicals; Environmental sciences -- Periodicals; Atmospheric chemistry -- Periodicals; 551.511
• DOI: 10.1016/j.chemosphere.2021.132677
• Languages: English
• ISSNs: 0045-6535

Abstract

Abstract: Pristine and polyethylene glycol assisted antimony tungstate (Sb2 WO6 ) was developed via hydrothermal route. The pristine and surfactant assisted Sb2 WO6 were further exemplified to reveal the properties of the samples. The bandgap calculated for Sb2 WO6, 5 ml PEG- Sb2 WO6, 10 ml PEG- Sb2 WO6 was 2.78 eV, 2.66 eV and 2.21 eV. The 10 ml PEG assisted sample exhibited narrow bandgap. The Fourier transform infrared spectroscopy (FTIR) spectra of the samples showed metal vibrations and stretching of the water molecules adsorbed. The Raman spectra showed the vibrational modes present in Sb2 WO6 . The morphology was analyzed employing transmission electron microscope (TEM) for all samples. Pristine Sb2 WO6 showed growth of nanorods with higher dimensions with high agglomeration. 5 ml PEG- Sb2 WO6 showed the growth of nanorods with lesser agglomeration. 10 ml PEG assisted Sb2 WO6 exhibited distinct growth of nanorods with no agglomeration on the surface. The elemental composition was examined employing X-ray Photoelectron Spectroscopy. Prepared product photocatalytic behaviour was tested employing Rhodamine B dye degrading. Different catalyst loading were investigated for degrading the toxic pollutants. 0.2 g 10 ml PEG-Sb2 WO6 showed 81% efficiency on degrading the toxic pollutant from wastewater. The OH radicals are accountable for photocatalytic behaviour of prepared photocatalyst. The 10 ml PEG-Sb2 WO6 has the good reusability behavior and stable properties after three cycles. The prepared 10 ml PEG- Sb2 WO6 photocatalyst will be the potential candidate for the remediation of the water treatment. Graphical abstract: Image 1 Highlights: Pristine and ethylene glycol mediated Sb2 WO6 was synthesized by hydrothermal. Sb2 WO6, 5 ml PEG-Sb2 WO6, 10 ml PEG-Sb2 WO6 bandgap was 2.78, 2.66, 2.21 eV. Nanorods narrow bandgap helped photocatalyst to be more active under irradiation. 10 ml PEG-Sb2 WO6 exhibited 81% efficiency on degrading Rhodamine B pollutant. 10 ml PEG-Sb2 WO6 sample be futuristic applicant for dye wastes remediation.