Investigation of PEG directed SbWO for dyes removal from wastewater.

Pristine and polyethylene glycol assisted antimony tungstate (SbWO) was developed via hydrothermal route. The pristine and surfactant assisted SbWO were further exemplified to reveal the properties of the samples. The bandgap calculated for SbWO, 5 ml PEG- SbWO, 10 ml PEG- SbWO 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 SbWO. The morphology was analyzed employing transmission electron microscope (TEM) for all samples. Pristine SbWO showed growth of nanorods with higher dimensions with high agglomeration. 5 ml PEG- SbWO showed the growth of nanorods with lesser agglomeration. 10 ml PEG assisted SbWO 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-SbWO 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-SbWO has the good reusability behavior and stable properties after three cycles. The prepared 10 ml PEG- SbWO photocatalyst will be the potential candidate for the remediation of the water treatment.