This research comprehensively explores the development and application of carbon-based nanomaterials, focusing on their role in photocatalysis for hydrogen production. The study examines various types of nanoparticles, including carbon nanotubes (CNTs), fullerenes, carbon quantum dots (CQDs), graphene, and graphene oxide, highlighting their unique properties and suitability for enhancing photocatalytic processes. Carbon-based nanomaterials are renowned for their exceptional chemical and physical properties, such as catalytic activity, electrical conductivity, and mechanical and thermal characteristics. They are promising energy and environmental sustainability candidates, particularly in the hydrogen evolution reaction (HER). The study delves into the synthesis methods, characterization techniques, and specific roles of these carbon-based nanomaterials in photocatalytic systems. Emphasis is placed on their ability to facilitate charge separation and minimize recombination losses, thereby significantly improving the efficiency of HER. Additionally, the research addresses the challenges and prospects of deploying carbon-based nanomaterials in real-world applications, intending to enhance the scalability and effectiveness of photocatalysts.