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- W2948890385 abstract "Four different lanthanide (Ce, Dy, Lu, and Sm) doped TiO 2 mesoporous materials were synthesised using the sol–gel method with titanium (IV) isopropoxide as the precursor. All of the synthesized materials were characterised using different analytical techniques, BET, PXRD, TEM, SEM-EDX, Raman, FTIR, photoluminescence, and UV-DRS spectroscopy. Photocatalytic activity and efficacy of the materials in the degradation of caffeine in aqueous solutions was investigated under visible light illumination. Although all materials showed good photocatalytic activity, Ce-doped TiO 2 exhibited relatively better activity than the other three catalysts. High photoactivity of the catalysts was attributed to the presence of lanthanides and their ability to generate ions that scavenge electrons under visible light, thereby enhancing photodegradation of caffeine. All materials proved to be good and were recyclable without loss of catalytic activity up to three runs. An intermediate [N-1,3,6-trimethyl-2,4-dioxo-1,2,3,4-tetrahydropyrimidin-5-yl)formamide] (TDTF) and two products (6-amino-1,3-dimethyl-2,4-dioxo-1,2,3,4-tetrahydropymidin-5-ly)-(methyl)-carbamic acid (ATCA) and N-methyl-N-(methylcarbomoyl)-2-oxoacetamide (MMO) were identified by the LC–MS spectra." @default.
- W2948890385 created "2019-06-14" @default.
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- W2948890385 date "2019-09-01" @default.
- W2948890385 modified "2023-10-14" @default.
- W2948890385 title "Synthesis of lanthanide-doped TiO<sub>2</sub>nanoparticles and their photocatalytic activity under visible light" @default.
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- W2948890385 doi "https://doi.org/10.1139/cjc-2018-0408" @default.
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