Nowadays, highly efficient decomposition of ozone is still technologically challenging, especially in the presence of high humidity levels. In this study, Cu₂O/reduced graphene oxide composite (Cu₂O/rGO) is in-situ synthesized by reducing a mixed solution of Cu^2 + and GO. This developed catalytic system exhibits 100% ozone (20 ppm O₃/air) decomposition efficiency at room temperature with high stability. Importantly, the ozone conversion could be still above 96% at high relative humidity levels (ca. 90%) after 10 h of continuous operation. The excellent performance is suggested to be attributed to the highly active ultrafine Cu₂O nanoparticles heterogeneously nucleated on rGO, which facilitate necessary electron density by the transfer of it between Cu₂O and rGO phases.

如今，臭氧的高效分解仍在技术上具有挑战性，特别是在高湿度条件下。在这项研究中，铜₂ O /还原的石墨烯氧化物复合物（CU ₂ O / RGO）是原位通过减少铜的混合溶液中合成的^{2 +}和GO。这种发达的催化系统在室温下具有高稳定性的100％臭氧（20 ppm O ₃ /空气）分解效率。重要的是，连续运行10小时后，在高相对湿度（约90％）下，臭氧转化率仍可能高于96％。建议将优异的性能归因于高活性超细Cu ₂O纳米颗粒在rGO上异质成核，通过在Cu ₂ O和rGO相之间转移，可以促进必要的电子密度。