Safe, sustainable, and green production of hydrogen peroxide is an exciting proposition due to the role of hydrogen peroxide as a green oxidant and energy carrier for fuel cells. The current work reports the development of carbon dot-impregnated waterborne hyperbranched polyurethane as a heterogeneous photo-catalyst for solar-driven production of hydrogen peroxide. The results reveal that the carbon dots possess a suitable band gap of 2.98 eV, which facilitates effective splitting of both water and ethanol under solar irradiation. Inclusion of the carbon dots within the eco-friendly polymeric material ensures their catalytic activity, and also provides a facile route for easy catalyst separation, especially from a solublizing medium. The overall process was performed in accordance with the principles of green chemistry using bio-based precursors and aqueous medium. This work highlights the potential of carbon dots as an effective photo-catalyst.

由于过氧化氢作为燃料电池的绿色氧化剂和能量载体，因此过氧化氢的安全，可持续和绿色生产是一个令人兴奋的提议。目前的工作报道了碳点浸渍的水性超支化聚氨酯作为太阳能驱动的过氧化氢生产的非均相光催化剂的发展。结果表明，碳点具有2.98eV的合适的带隙，这有利于在阳光照射下水和乙醇的有效分裂。将碳点包含在环保聚合物材料中可确保其催化活性，并且还提供了一种容易的催化剂分离途径，尤其是从溶解性介质中分离出来的催化剂。整个过程是根据绿色化学原理使用生物基前体和水性介质进行的。这项工作突出了碳点作为有效光催化剂的潜力。