19-Mar-2021 | Market Research Store
The Jaume I University of Castellón (UJI) and Universidad Federal de São Carlos (UFSCar) researchers recently found novelphotocatalytic and antibacterial compoundthat canhelp eliminatepharmaceuticals from wastewater.The researchers found a unique and easy method for the selective synthesis of silver tungstate polymorphs (Ag2WO4), which are generally referred to asα, β, and γ, at room temperature minusthe surfactants. It is thus easier to manufacture these materials on an industrial scale. Thepolymorphs’ photocatalytic and antimicrobial mechanisms along with its formation and growth is discussed to gain better understanding of it. The silver tungsten polymorphs are made throughprecipitation and control over the volumetric relation between thedissolution precursors,silver nitrate andsodium tungsten.
A number of experimental techniqueswere then used to study the structural, microstructural and electronic properties of the material after completion of all these phases. Under the UV, the structure-activity relations between the morphology and photocatalytic activities were studied, thereby focusing on the degradation of the amiloride medicine which is a diuretic that inhibits the body from absorbing high amounts of salts, controls Na levels, and also uses its antibacterial properties to eliminate penicillin-resistant Staphylococcus aureus. The methods including field emission scanning electron microscopy,X-ray absorption spectroscopy, photoluminescence images, and X-ray diffraction and Rietveld refinement, among others were used to study the polymorphs.
The researchers then used various theoretical and computational methods to study, supplement, and justify the experimental results that help gain better knowledge at the atomic level. The morphology and external planes of silver tungsten polymorphs have also been well analyzed. The researchers concluded that α-Ag2WO4 was the most stable but β-Ag2WO4 showed the best outcomes. The next plan is to study the complete behavior and applications of β- and γ-Ag2WO4phases as they are highly unstable and the least analyzed of the polymorphs.