Abstract The Sustainable Development Goals (SDGs) play key role in propelling transformative changes, and highlighting burning issues to be addressed to achieve successful global developmental initiative. Zinc oxide (ZnO) and reduced graphene oxide (rGO) are helpful in achieving various SDGs. However, both materials have some limitations. To overcome the drawbacks of individual ZnO and rGO nanomaterials, ZnO/rGO nanocomposites are designed. This review aims to highlight issues being faced by ZnO and graphene oxide and their resolution through the development of ZnO/rGO nanocomposite. Various characterization techniques are discussed to explore physio-chemical properties. As the composite materials exhibit enhanced charge carrier separation, and extended lifetime of photoinduced charge carriers, making them a promising agent for improved photocatalytic degradation of pollutants, biosensors, and energy conversion and storage devices such as solar cells, and lithium batteries etc. Morphological relationship with various activities and potential applications in numerous fields, including controlling environmental pollution, biomedical, bio-sensing, energy etc., have also been discussed to explore their importance. Additionally, for further advancement to design next generation material several recommendations have been given. The knowledge gained from this review is the way for the development of next-generation nanomaterials, capable of addressing global challenges in energy and environmental sustainability etc.
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