The production of high-value products from lignocellulosic biomass is carried out through the selective scission of crosslinked C–C/C–O bonds. Several techniques are applied nowadays to optimize biomass conversion into desired products with high yields. Photocatalytic technology has been proven to be a valuable tool for valorizing biomass at mild conditions. The photoproduced reactive oxygen species (ROSs) can initiate the scission of crosslinked bonds and form radical intermediates. However, the low mass transfer of the photocatalytic process could limit the production of a high yield of products. The incorporation of ultrasonic cavitation in the photocatalytic system provides an exceptional condition to boost the fragmentation and transformation of biomass into the desired products within a lesser reaction time. This review critically discusses the main factors governing the application of photocatalysis for biomass valorization and tricks to boost the selectivity for enhancing the yield of desired products. Synergistic effects obtained through the combination of sonolysis and photocatalysis were discussed in depth. Under ultrasonic vibration, hot spots could be produced on the surface of the photocatalysts, improving the mass transfer through the jet phenomenon. In addition, shack waves can assist the dissolution and mixing of biomass particles.

通过交联的 C-C/C-O 键的选择性断裂，从木质纤维素生物质生产高价值产品。现在应用了几种技术来优化生物质转化为所需产品的高产率。光催化技术已被证明是在温和条件下稳定生物质的有价值的工具。光产生的活性氧 (ROS) 可以引发交联键的断裂并形成自由基中间体。然而，光催化过程的低传质可能会限制产品的高产率生产。在光催化系统中加入超声波空化提供了一个特殊的条件，可以在较短的反应时间内促进生物质的破碎和转化为所需的产品。这篇综述批判性地讨论了控制光催化在生物质增值中应用的主要因素，以及提高选择性以提高所需产品产量的技巧。深入讨论了通过结合声解和光催化获得的协同效应。在超声波振动下，光催化剂表面会产生热点，通过射流现象改善传质。此外，震波可以帮助生物质颗粒的溶解和混合。光催化剂表面可能会产生热点，通过喷射现象改善传质。此外，震波可以帮助生物质颗粒的溶解和混合。光催化剂表面可能会产生热点，通过喷射现象改善传质。此外，震波可以帮助生物质颗粒的溶解和混合。