A Multifunctional Study: Synthesis and Characterization of (1-x)MnWO4/xCuS Composites for Structural, Optical, Photoluminescent, and Gamma-Ray Shielding Applications
نوع المنشور
بحث أصيل
المؤلفون

(1-x)MnWO4/xCuS (x= 0.05, 0.1, 0.15) samples were formed employing coprecipitation and solid-state reaction techniques. XRD and Raman results confirmed the integration of Cu ions into the MnWO4 lattice. The structural refinement, utilizing the Rietveld method, indicated a slight increase in the cell parameter (a), while the parameters (b) and (c) diminished upon increasing (x). The crystallite size is slightly decreased along [h00] and [00l] directions but unchanged along [0k0], meanwhile, the microstrain along the [00l] direction is obviously increased, but unchanged along [h00] and [0k0] directions. The WO6 octahedrons exhibit a reduced volume and increased distortion in comparison to Mn octahedra, while the volume of the Mn octahedrons increased. The absorption was enhanced for the wavelengths > 400 nm for all composed samples. The obtained direct optical band gap energies for (1-x)MnWO4/xCuS are 2.85, 2.75, 2.73 and 2.71 eV for x= 0.05, 0.1, 0.15, respectively. Upon composing MnWO4 with CuS, the photoluminescence intensity greatly reduced, upgrading the functionality of MnWO4 as a photocatalyst. At 15 keV, the linear LAC and mass MAC attenuation coefficient parameters for (1-x)MnWO4/xCuS (x=0, 0.95, 0.1, 0.15) are (675.633, 676.584, 614.263, 260.120) cm-1 and (93.837, 93.193, 84.376, 35.584) cm2/g, respectively. (1-x)MnWO4/xCuS samples diminished their shielding characteristics as the CuS content surpassed 5%. The sample containing 15% CuS established the highest fast neutron removal cross section (FNRCS) value among all samples.

المجلة
العنوان
Physica B: Condensed Matter
الناشر
Elsevier
بلد الناشر
المملكة المتحدة
Indexing
Thomson Reuters
معامل التأثير
2,8
نوع المنشور
Both (Printed and Online)
المجلد
735
السنة
2026
الصفحات
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