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The synthesis of bilayer heterojunctions has received considerable attention recently. Fabrication of novel bilayer composites is of significant interest to improve their photocatalytic efficiency. In this study, molybdenum disulfide (MoS 2 ), a layered dichalcogenide material exhibiting unique properties, in combination with graphitic carbon nitride (g-C 3 N 4 ), a carbon-based layered material, was fabricated with small amounts of zinc oxide (ZnO). Three composites, MoS 2 /g-C 3 N 4 , MoS 2 /ZnO, and MoS 2 /g-C 3 N 4 /ZnO were prepared via a simple exfoliation method and characterized by various physicochemical methods. The Z-scheme charge transfer mechanism in the prepared ternary composite improves efficiency by inhibiting the recombination rate of electron-hole pairs. It has shown excellent performance in degrading a major water contaminant, malachite green (MG) dye, under visible light irradiation., (Copyright © 2022 Elsevier Inc. All rights reserved.)