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Novel environmentally-friendly 0D/3D TiO 2 @FeMoO 4 binary composite with boosted photocatalytic performance: Structural analysis and Z-scheme interpretations

作   者:
El-Sabban, Heba A.Mady, Amr HusseinDiab, M. A.Al Zoubi, WailKang, Jee-HyunKo, Y. G.
作者机构:
Yeungnam UnivEgyptian Petr Res Inst EPRIMinist Hlth & Populat
关键词:
Mechanism of charge transferTiO2 NPs, FeMoO4 cuboidsZ-Scheme heterojunction
期刊名称:
Journal of Alloys and Compounds
i s s n:
0925-8388
年卷期:
2025 年 1010 卷
页   码:
177265-
页   码:
摘   要:
For efficient pollutant degradation under any extreme circumstances, TiO2-based photocatalyst being accessible and inexpensive will be a desirable engineering source satisfying excellent photocatalytic performance in an ecofriendly manner. Here, we report the unfolded way of designing the novel concept of Z-scheme heterojunction consisting of TiO2 and FeMoO4 via thermal techniques in which hydrothermal treatment was coupled sequentially by the calcination step. The well-aligned band structure of the developed composite, possessing numerous active sites, enhanced the separation of the generated charge carriers which in turn boosted the photocatalytic efficiency. The prepared photocatalysts were thoroughly investigated via different techniques like XRD, FTIR, XPS, SEM, TEM-EDS, Pl, UV-Vis diffuse reflectance, and Uv-Vis spectroscopy. The TiO2-8 wt% FeMoO4 (TF 8 %) photocatalyst displayed better photocatalytic performance for removing Basic Fuchsin dye (BF) in 20 min than other counterparts under visible light irradiation. Furthermore, the probable photocatalytic mechanism was evidenced by XPS results and the trapping experiments. Trapping experiments revealed that center dot O-2(-) and center dot OH radicals were the primary active species. The synthesized TF 8 % photocatalyst has revealed outstanding durability after five successive recycles without change in the structural features which was confirmed by XRD analysis. This work could provide new perspectives into various environmental applications by utilizing highly efficient materials that have been strategically constructed.
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