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In the present study, we designed a spherical shape like Sr1−xSmxWO4 (x = 0.0, 0.01, 0.02, 0.03, 0.04 and 0.05) materials by simple co-precipitation route and evaluated its photoluminescence and photocatalytic properties. The structural and morphological properties of as-prepared materials were studied by powder X-ray diffraction method, X-ray photoelectron spectroscopy, scanning electron micrographic images and transmission electron micrographic images. The photoluminescence behavior of Sm3+-doped SrWO4 for visible excitation (405 nm) was examined to analyze its use as white LED. The emission spectra consist of intra 4f transition of Sm3+ such as 4G5/2→\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{G}}_{5/2}\to$$\end{document}6H5/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{H}}_{5/2}$$\end{document} (561 nm), 4G5/2→\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{G}}_{5/2}\to$$\end{document}6H7/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{H}}_{7/2}$$\end{document} (601 nm), 4G5/2→\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{G}}_{5/2}\to$$\end{document}6H9/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{H}}_{9/2}$$\end{document} (642 nm) and 4G5/2→\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{G}}_{5/2}\to$$\end{document}6H11/2\documentclass[12pt]{minimal} \usepackage{amsmath} \usepackage{wasysym} \usepackage{amsfonts} \usepackage{amssymb} \usepackage{amsbsy} \usepackage{mathrsfs} \usepackage{upgreek} \setlength{\oddsidemargin}{-69pt} \begin{document}$${\text{H}}_{11/2}$$\end{document} (711 nm), respectively. Furthermore, the emission wavelength at 601 and 642 nm suggests a strong orange and red emission, which can be applied for the application for near-UV excitation. On the other hand, Sm3+-doped SrWO4 played excellent catalyst towards the photodegradation of Ibuprofen (IBF). The obtained results from the UV-Vis spectroscopy suggested that 3% of Sm3+-doped SrWO4 had high photocatalytic activity compared to other materials. The degradation efficiency of Sr0.97Sm0.03WO4 toward IBF was observed about 97% within 80 min under visible irradiation and it showed good stability by observing the reusability of catalyst. These results suggested that the Sm3+-doped SrWO4 material are suitable candidate for application in photoluminescence and photocatalysis.