The rapidly increasing severity of the energy crisis and environmental degradation are stimulating the rapid development of photocatalysts and rechargeable lithium/sodium ion batteries. In particular, MoS/TiO based nanocomposites show great potential and have been widely studied in the areas of both photocatalysis and rechargeable lithium/sodium ion batteries due to their superior combination properties. In addition to the low-cost, abundance, and high chemical stability of both MoS and TiO, MoS/TiO composites also show complementary advantages. These include the strong optical absorption of TiOvs. the high catalytic activity of MoS, which is promising for photocatalysis; and excellent safety and superior structural stability of TiOvs. the high theoretic specific capacity and unique layered structure of MoS, thus, these composites are exciting as anode materials. In this review, we first summarize the recent progress in MoS/TiO-based nanomaterials for applications in photocatalysis and rechargeable batteries. We highlight the synthesis, structure and mechanism of MoS/TiO-based nanomaterials. Then, advancements and strategies for improving the performance of these composites in photocatalytic degradation, hydrogen evolution, CO reduction, LIBs and SIBs are critically discussed. Finally, perspectives on existing challenges and probable opportunities for future exploration of MoS/TiO-based composites towards photocatalysis and rechargeable batteries are presented. We believe the present review would provide enriched information for a deeper understanding of MoS/TiO composites and open avenues for the rational design of MoS/TiO based composites for energy and environment-related applications.

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