However, to unlock the full potential of this technology and scale it effectively for broader applications, it is crucial to design innovative reactors that incorporate key elements. These include the precise placement of sonotrodes, which create intense cavitation zones, the strategic positioning of light sources to ensure even photon distribution for efficient catalyst activation, and the design of flow systems that facilitate optimal and stable energy transfer. These elements work in harmony to maximize the reactor's performance and efficiency. (Fig. ) illustrates the various sonophotoreactors, emphasizing their design and functional components. It provides a detailed view of how the arrangement of these reactor elements directly impacts performance, highlighting the crucial role of reaction instrument design in optimizing sonophotocatalysis. While batch reactors are widely used in laboratory settings, they are limited in their scalability for industrial applications. To address this issue, continuous flow reactors and hybrid systems are emerging as more scalable solutions. These systems offer the advantage of continuous operation, minimize energy losses, and enhance the synergy between ultrasound and light, thus improving overall efficiency Looking forward, the future prospects for sonophotocatalysis lie in refining these reactor designs to tackle energy dissipation challenges, improve process productivity, and make the technology adaptable to large-scale industrial settings. This progress will enable sonophotocatalysis to reach its full potential in key industries such as wastewater treatment, sustainable energy conversion, and the production of green chemicals. By continuously enhancing these reactor designs, this technology will play a crucial role in addressing global environmental and energy challenges, offering more sustainable and efficient solutions for the future.