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Indirect Z-scheme assembly of graphene-bridged 2D ZnV₂O₆/pCN nanosheets composite has been fabricated by one-step solvothermal process and tested for photoinduced CO₂ conversion under visible-light irradiations. The highest CH₃OH production of 3488 μmol g-cat^–1 was obtained over ZnV₂O₆/RGO/g-C₃N₄ composite, 1.02 and 1.25 times higher comparing to ZnV₂O₆/RGO and ZnV₂O₆/g-C₃N₄ samples, respectively. This enhanced efficiency can be ascribed to well-designed ternary heterojunction with hierarchical structure and efficient charges separation by RGO. More importantly, CH₃OH yield was further improved by introducing RGO/pCN as an electron sink, which led to a 1.07 times higher yield than using only RGO. This reveals that ternary 2D ZnV₂O₆/RGO/pCN nanostructure has higher visible-light absorption, improved charge separation, and enhanced photocatalytic efficiency due to RGO/pCN …