Copper oxide (I) nanoparticles decorated on nitrogen-doped carbon (N-C) rod-shaped core-shell nanostructure have been successfully prepared. The nanostructures have been developed by the reduction of Cu²⁺ with ascorbic acid over Fe₃O₄@N-C rod-shaped core-shell nanostructure followed by aerobic oxidation of copper nanoparticles. Furthermore, the photocatalytic activity of Fe₃O₄@N-C/Cu₂O nanostructure was evaluated in selective CO₂ reduction and methanol was observed as the main product over Fe₃O₄@N-C/Cu₂O. The photocatalytic activity of Fe₃O₄@N-C/Cu₂O for CO₂ reduction was found to be about four times higher than that of Fe₃O₄@Cu₂O photocatalyst, which might be due to the enhancement of visible light absorption and facilitating the separation of photogenerated electron-hole pairs.

已成功制备了装饰有氮掺杂碳（N -C）棒状核-壳纳米结构的氧化铜（I）纳米粒子。通过在Fe ₃ O ₄ @ N -C棒状核壳纳米结构上用抗坏血酸还原Cu ²⁺，然后对铜纳米颗粒进行好氧氧化，从而开发出纳米结构。此外，通过选择性还原CO ₂评估了Fe ₃ O ₄ @ N -C / Cu ₂ O纳米结构的光催化活性，并观察到以甲醇为主要产物的Fe ₃ O ₄ @ N -C / Cu的光催化活性。₂ O.铁的光催化活性₃ ö ₄ @ Ñ -C /铜₂ O代表CO ₂减少被发现是大约四倍比Fe更高₃ ö ₄ @Cu ₂ ö光催化剂，这可能是由于增强可见光吸收并促进光生电子-空穴对的分离。