Effect of aging on morphological structure of BaWO4 nanostructure toward excellent photocatalytic performance.
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| Title: | Effect of aging on morphological structure of BaWO |
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| Authors: | Zafar, Aqsa1 (AUTHOR), Sulaman, Muhammad2 (AUTHOR) sulaman@muc.edu.cn, Mahmood, Tariq1 (AUTHOR) tariq.mahmood@gcwus.edu.pk, Urooj, Afshan3 (AUTHOR), Sandali, Yahya4 (AUTHOR), Khan, Waheed S.5 (AUTHOR), Ullah, Hafiz Muhammad Naeem2 (AUTHOR), Rahman, Abdul2 (AUTHOR), Irfan, Ahmad6 (AUTHOR) |
| Source: | Journal of Materials Science: Materials in Electronics. Jul2025, Vol. 36 Issue 19, p1-14. 14p. |
| Subjects: | Field emission electron microscopy, Physical sciences, Surface diffusion, X-ray emission spectroscopy, Infrared spectroscopy, X-ray spectroscopy |
| Abstract: | The material has collective surface diffusion thermodynamically into stable nano objects because of aging which may have the capability to enhance oxidative degradation performance. Here, Barium-tungstate nanostructures are synthesized using a hydrothermal method with an aging process, employing NaWO4·2H2O and Ba(NO3)2 as precursors and their photocatalytic performance have been measured. X-ray diffraction analysis confirmed the wolframite tetragonal structure. Morphological characterization via field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy revealed dodecahedral shapes (average ~ 185 nm) for non-aged samples and spherical shapes (average ~ 60 nm) for aged samples. Optical properties, examined by UV-Vis and Fourier-transform infrared spectroscopy, showed an absorption peak at 262 nm and a characteristic band at 788 cm−1. Photocatalytic activity for degrading methyl orange dye under visible light was evaluated at varying pH values (2, 4, 6, 8, 10). At pH 10, degradation efficiencies were 96.96% for non-aged samples and 98.79% for aged samples, maximum activity results appeared with the aging process which enhancing performance by improving morphology and increasing active sites. [ABSTRACT FROM AUTHOR] |
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| Database: | Engineering Source |
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| Abstract: | The material has collective surface diffusion thermodynamically into stable nano objects because of aging which may have the capability to enhance oxidative degradation performance. Here, Barium-tungstate nanostructures are synthesized using a hydrothermal method with an aging process, employing NaWO4·2H2O and Ba(NO3)2 as precursors and their photocatalytic performance have been measured. X-ray diffraction analysis confirmed the wolframite tetragonal structure. Morphological characterization via field emission scanning electron microscopy and energy-dispersive X-ray spectroscopy revealed dodecahedral shapes (average ~ 185 nm) for non-aged samples and spherical shapes (average ~ 60 nm) for aged samples. Optical properties, examined by UV-Vis and Fourier-transform infrared spectroscopy, showed an absorption peak at 262 nm and a characteristic band at 788 cm−1. Photocatalytic activity for degrading methyl orange dye under visible light was evaluated at varying pH values (2, 4, 6, 8, 10). At pH 10, degradation efficiencies were 96.96% for non-aged samples and 98.79% for aged samples, maximum activity results appeared with the aging process which enhancing performance by improving morphology and increasing active sites. [ABSTRACT FROM AUTHOR] |
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| ISSN: | 09574522 |
| DOI: | 10.1007/s10854-025-15192-1 |
