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The construction of new electron transfer channels is essential to improve the photocatalyst activity. Herein, a novel Ag 2 MoO 4 /SrWO 4 /g-C 3 N 4 photocatalyst with dual electron transfer channels was constructed by one-step precipitation method. The obtained photocatalysts were characterized using XRD, SEM, FT-IR, TEM, Uv-vis and PL. Under visible light, the photocatalyst was evaluated for its ability to degrade tetracycline (TC). The characterization results presented that the olive sphere-like SrWO 4 and the nanosphere-like Ag 2 MoO 4 were uniformly dispersed on the surface and pores of g-C 3 N 4 , forming a heterostructure and thereby heterojunctions, which promoted the internal electron transfer. The degradation experiments showed that the Ag 2 MoO 4 /SrWO 4 /g-C 3 N 4 improved degradation efficiency of TC under visible light relative to monomeric and binary materials. In addition, the 20AMO/8SW/CN maintained 92.19 % degradation of TC after four cycles of experiments, showing excellent reusability. During the photocatalytic process, ·O 2 -, h+, and ·OH promoted the degradation of TC. Combining with the energy band structure analysis, it was found that a novel dual electron transfer channel had been constructed among Ag 2 MoO 4 , SrWO 4 and g-C 3 N 4 , which markedly enhanced photocatalytic efficiency. The work provides a potential approach for developing efficient and stable photocatalysts. [Display omitted] • A novel visible light responsive Ag 2 MoO 4 /SrWO 4 /g-C 3 N 4 photocatalysts were fabricated by one-step precipitation method. • The introduction of SrWO 4 and Ag 2 MoO 4 optimized the separation rate of photogenerated electron hole pairs in g-C 3 N 4. • Ag 2 MoO 4 /SrWO 4 /g-C 3 N 4 presented excellent photocatalysis and photochemical stability towards degradation of tetracycline. • An efficient dual electron transfer channels was proposed based on Ag 2 MoO 4 /SrWO 4 /g-C 3 N 4 photocatalysts. [ABSTRACT FROM AUTHOR]