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The pursuit of a desirable photocatalytic technology has always been accompanied by photocatalyst design and development, marking high activity, long-term stability, and low cost. Herein, an in-situ deposition approach is used to integrate plasmonic 0D Ag nanoparticles on the surface of 2D slice-like 2,9,16,23-tetranitrocopper(II) phthalocyanine (CuPc) sensitized 1D Bi 2 MoO 6 nanofibers (Ag-CuPc/Bi 2 MoO 6) for visible-light-induced tetracycline (TC) photocatalysis. Benefiting from the combination of 2D CuPc sensitization, and surface plasmon resonance (SPR) effect of 0D Ag nanoparticles, we experimentally find that the Ag-CuPc/Bi 2 MoO 6 nanofibers boost the visible-light utilization efficiency, promote charge transfer, and separation, and accelerate electron redox transformation in TC photocatalysis. The superior photocatalytic activity is attributed to the strong interfacial interaction, and Z-scheme heterojunction synergy in Ag-CuPc/Bi 2 MoO 6 nanofibers. This work opens new horizons for the delicate design of promising Z-scheme visible-light photocatalysts for the removal of antibiotics in wastewater, realizing water purifications. A novel Ag-decorated CuPc/Bi 2 MoO 6 nanofiber heterojunction photocatalyst was successfully synthesized. Benefiting from the combination of the CuPc sensitization, and the SPR effect of Ag nanoparticles, Ag-CuPc/Bi 2 MoO 6 boosts visible-light utilization efficiency, and promotes the separation efficiency of photogenerated carriers. Therefore, the photocatalytic activity of Ag-CuPc/Bi 2 MoO 6 was improved significantly in tetracycline degradation. [Display omitted] • A novel plasmonic Ag-decorated CuPc/Bi 2 MoO 6 nanofiber was successfully fabricated. • The separation efficiency of e−/h+ was enhanced due to the sensitization of CuPc, and SPR effect of Ag nanoparticles. • Ag-CuPc/Bi 2 MoO 6 exhibited excellent properties in TC degradation. • A possible Z-scheme photocatalytic mechanism was evidenced by MS and ESR analysis. [ABSTRACT FROM AUTHOR]

Semiconductor-based photocatalyst serves as an attractive candidate for harnessing solar energy to generate renewable hydrogen via water splitting. Here, a novel Au/SrTiO 3 /TiO 2 (T3) photocatalyst of 3D SrTiO 3 /TiO 2 hollow nanosphere decorated by plasmonic Au nanoparticle (NP) is precisely constructed via an in-situ growth of cubic SrTiO 3 on anatase TiO 2 hollow nanospheres. By carefully regulating the SrTiO 3 /TiO 2 interface structure, the optimized Au/SrTiO 3 /TiO 2 (T3) photocatalyst achieves a remarkable photocatalytic H 2 evolution rate of 327.8 μmol g−1 h−1 without Pt as cocatalyst. Specifically, spectroscopic analyses and characterization results comprehensively prove that the favorable plasma electric field (Au) and the internal electric field (SrTiO 3 /TiO 2 heterojunction) coupled with the 3D electron transfer channel in 3D Au-SrTiO 3 /TiO 2 hollow nanospheres synergistically promote the interfacial charge separation and accelerate the interfacial transfer of charge carriers for efficient solar-driven photocatalytic H 2 evolution. This work presents a new strategy for the rational design of plasmonic metal functionalized 3D heterojunction photocatalysts for highly efficient solar-to-chemical energy conversion. [Display omitted] • Au-SrTiO 3 /TiO 2 hollow nanospheres are prepared for photocatalytic water splitting. • 3D hollow sphere unit structure provides electron transfer channels. • The plasma effect and internal electric field promote charge separation and transfer. • Au/SrTiO 3 /TiO 2 photocatalyst achieved a remarkable photocatalytic H 2 evolution. [ABSTRACT FROM AUTHOR]