Carbon-based nanomaterials are well-recognized catalysts for H₂O₂ production though remain insufficient for practical applications, and their photothermal effect is usually ignored. Herein, two typical carbon nanomaterials, mesoporous carbon hollow spheres (MCHS) and carbon hollow spheres (CHS), are selectively synthesized to explore the influence of oxygen-containing surface functional groups, mesoporous structure and photothermal effect on their electrocatalytic and application ability. It was found that the abundant oxygen-containing surface functional groups in MCHS can optimize the adsorption energy of *OOH while the mesoporous structure of MCHS provides plenty of electrochemical active sites, both of which significantly enhance H₂O₂ production selectivity of the MCHS (96.0% versus 87.0% for the CHS counterpart). Furthermore, the notable photothermal effect of the MCHS can promote the generation of more ·OH radicals and accelerate related reaction kinetics (3.5 times higher than those without NIR light irradiation) under the in-situ electro-Fenton degradation of methyl orange. As a result, remarkable degradation efficiency of 98.1% was achieved for the MCHS under the illumination of near infrared (NIR) light, outperforming those without NIR light irradiation (70.1% for MCHS and 54.7% for CHS). By integrating oxygen-containing surface functional groups, mesoporous structure and photothermal effect, this work achieves remarkable H₂O₂ production ability and pollutant degradation application simultaneously, providing a new avenue for the design of advanced electrocatalysts and may promote their energy related applications.

碳基纳米材料是公认的H ₂ O ₂生产催化剂，但在实际应用中仍然不足，其光热效应通常被忽略。在此，选择性合成了两种典型的碳纳米材料，介孔碳空心球（MCHS）和碳空心球（CHS），探讨了含氧表面官能团、介孔结构和光热效应对其电催化和应用能力的影响。研究发现，MCHS中丰富的含氧表面官能团可以优化*OOH的吸附能，而MCHS的介孔结构提供了大量的电化学活性位点，两者均显着增强了H ₂ O _{2 。}MCHS 的生产选择性（96.0% 对比 CHS 对应物的 87.0%）。此外，在甲基橙的原位电芬顿降解下，MCHS显着的光热效应可以促进更多·OH自由基的产生并加速相关反应动力学（比没有近红外光照射的反应动力学高3.5倍） 。结果，在近红外（NIR）光照射下，MCHS的降解效率达到了98.1%，优于没有近红外光照射的降解效率（MCHS为70.1%，CHS为54.7%）。通过整合含氧表面官能团、介孔结构和光热效应，该工作取得了显着的H ₂ O ₂同时生产能力和污染物降解应用，为先进电催化剂的设计提供了新的途径，并可能促进其能源相关应用。