基于雾化辅助光催化水解制氢反应器的研究

Photocatalytic hydrogen production via water splitting has emerged as a research focus due to its advantages of low energy consumption, environmental sustainability, and simple process. Atomization enables highly dispersed catalyst particles, increases the penetration depth of light in the catalyst solution, and effectively enhances hydrogen production efficiency. Investigating atomization reactors through optimization of reactor design, reaction conditions, and energy consumption evaluation is crucial for improving hydrogen yield. This study employs ultrasonic atomization to assist the water splitting reaction for hydrogen production, using CuO-TiO₂ as the photocatalyst and methanol as the sacrificial agent. The effects of reactor configuration and reaction parameters on hydrogen production are explored, and the energy consumption of the system is further evaluated. Results show that when the catalyst loading is 0.01 g·L⁻¹, methanol concentration is 10%, and the average power density of the optical fiber is 14.31 mW·cm⁻², the hydrogen yield of the atomization-optical fiber system reaches 539.19 mmol·g⁻¹ within 100 minutes, with a hydrogen production rate maintained at 292.49 mmol·g⁻¹·h⁻¹. Finally, the energy consumption for the system operating under optimal conditions for 100 minutes is evaluated as 11.83 kJ. The findings demonstrate that the atomization-optical fiber reactor offers significant advantages for this application.