Having high energy content, green nature, and abundant sources for the generation, hydrogen would be a promising fuel for the growing populations of mankind societies. Remarkable efforts have been doing to achieve simple, fast, and inexpensive approaches for the generation of hydrogen. Amongst them, photocatalytic water splitting has gained significant attentions due to the use of free solar energy as the driving force, and abundant water as the raw material. To obtain an efficient photocatalyst, herein, graphene oxide was enriched with nitrogen via chemical bonding with 2-aminopyridine (AP), and subsequently modified with platinum nanoparticles. It was observed that graphene oxide was reduced to reduced graphene oxide (RGO) during the modification reaction. Insertion of 2-amino pyridine into RGO structure created outstanding enhancement in the deposition of fine nanoparticles of platinum, and prohibition of aggregation of RGO sheets. Also, bandgap of 3.43 eV was obtained for the AP–RGO. In addition, nonbonding electrons of nitrogen improved charge transferring in the RGO structure, enhancing the photocatalytic water splitting at room temperature without additives by the rate of 13.392 mmol g⁻¹ h⁻¹.

氢能源含量高、绿色环保且发电来源丰富，对于人类社会不断增长的人口来说将是一种很有前途的燃料。为了实现简单、快速且廉价的制氢方法，人们付出了巨大的努力。其中，光催化水分解由于利用免费太阳能作为驱动力，以丰富的水为原料，受到了极大的关注。为了获得有效的光催化剂，本文中，氧化石墨烯通过与2-氨基吡啶（AP）化学键合而富含氮，随后用铂纳米粒子进行修饰。观察到氧化石墨烯在改性反应过程中被还原为还原氧化石墨烯（RGO）。将 2-氨基吡啶插入 RGO 结构中，显着增强了铂细纳米粒子的沉积，并抑制了 RGO 片的聚集。此外，AP-RGO 的带隙为 3.43 eV。此外，氮的非键合电子改善了 RGO 结构中的电荷转移，在没有添加剂的情况下，室温下的光催化水分解速率提高了 13.392 mmol g⁻¹ h⁻¹。