Herein, CuWO₄ loaded C₃N₄ nanosheets were prepared, and then NiS nanoclusters were introduced on the C₃N₄ nanosheets using CuWO₄ as intermediaries to obtain NiS nanoclusters loaded C₃N₄ nanosheets. Meanwhile, the photocatalytic performance of the aforesaid C₃N₄ nanosheets loaded with NiS nanoclusters was evaluated for light-driven H₂ production. The results reveal that the photocatalytic performance of C₃N₄ can be significantly strengthened through the above-mentioned approach. The obtained NiS loaded C₃N₄ nanosheets are a noble metal-free photocatalyst with dramatic activity for photocatalytic H₂ generation. The fastest H₂ evolution rate can be up to 17 μmol h^-1 over the aforementioned photocatalyst. This remarkable boosting might be mainly ascribed to the activation of CuWO₄ on NiS co-catalyst. If the NiS nanoclusters are directly loaded on the C₃N₄ nanosheets, the evolution rate of H₂ is only 0.27 μmol h^-1 over the C₃N₄ nanosheets directly loaded with NiS nanoclusters, which is 1.6 percent of that over the C₃N₄ nanosheets loaded with NiS nanoclusters using CuWO₄ as intermediaries. Besides, the as-prepared NiS nanoclusters loaded C₃N₄ nanosheets possess satisfactory salinity tolerant. When seawater was utilized, the H₂ evolution rate of 4.9 μmol h^-1 can be achieved.

在此，制备负载有CuWO _4的C ₃ N ₄纳米片，然后以CuWO ₄为中介将NiS纳米簇引入C ₃ N ₄纳米片上，从而获得负载有NiS纳米簇的C ₃ N ₄纳米片。同时，评估了上述负载有NiS纳米簇的C ₃ N ₄纳米片的光催化性能，以用于光驱动H _2的生产。结果表明，通过上述方法可以显着增强C ₃ N ₄的光催化性能。获得的NiS负载的C₃ N ₄纳米片是一种无贵金属的光催化剂，具有产生光催化H _2的显着活性。相对于上述光催化剂，最快的H ₂释放速率可高达17μmolh ^-1。这种显着的提高可能主要归因于NiS助催化剂上CuWO ₄的活化。如果将NiS纳米团簇直接负载在C ₃ N ₄纳米片上，则与直接加载NiS纳米团簇的C ₃ N ₄纳米片相比，H _2的析出速率仅为0.27μmolh ^-1，是在C ₃ N ₄纳米片上的1.6％。₃ N使用CuWO ₄作为中间体的_4个纳米片，其中装有NiS纳米簇。此外，制备的负载有NiS纳米簇的C ₃ N ₄纳米片具有令人满意的耐盐性。当利用海水时，H _2的释放速率可达到4.9μmolh ^-1。