Highly efficient different morphologies of SnS₂ (nanoparticles, nanosheets, and 3D flower-like)/g-C₃N₄ composites were, respectively, prepared via an elementary hydrothermal method that was integrated with the calcination means. The XRD results showed that the relative intensities of several diffraction peaks, especially (001), (100), (101), and (102), indicated that the as-prepared samples (SnS₂ nanoparticle, SnS₂ nanosheet, and 3D flower-like SnS₂) should be dominated by different specific preferred growth of facets. In comparison with SnS₂ and pure g-C₃N₄, the SnS₂/g-C₃N₄ composites exhibited much higher H₂ development performance under visible light irradiation in the presence of Na₂SO₃ and Na₂S as the sacrificial agent. The SnS₂ nanoparticles/g-C₃N₄ composites exhibit the highest visible-light-driven H₂-generation rate of 6305.18 μmol h^–1 g^–1 without any noble metal as cocatalyst, which is approximately 16.98 times higher than that of SnS₂ nanoparticles. In all, the SnS₂ nanoparticles (SnS₂ nanoparticle/g-C₃N₄ composite) dominated by (001) and (100) preferred growth of facets exhibit significant photocatalytic activity resulting from their suitable band edges to realize the photocatalytic redox reaction. The analysis of photocurrent response, linear sweep voltammograms, and photoluminescence demonstrated that the low recombination rate and the efficacious charge transfer of photogenerated carriers could be assigned to the interactive impact of g-C₃N₄ and SnS₂.

中文翻译：

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二维gC ₃ N ₄上负载的SnS _2的不同形态，可产生稳定且稳定的可见光光催化氢

通过与煅烧装置集成的基本水热法分别制备了SnS ₂（纳米颗粒，纳米片和3D花状）/ gC ₃ N ₄复合材料的高效不同形貌。XRD结果表明，几个衍射峰的相对强度，特别是（001），（100），（101）和（102），表明所制备的样品（SnS ₂纳米颗粒，SnS ₂纳米片和3D花类SnS ₂）应以不同的特定小平面优先增长为主。与SnS ₂和纯gC ₃ N _4相比，SnS ₂ / gC在作为牺牲剂的Na ₂ SO ₃和Na ₂ S的存在下，在可见光照射下，₃ N ₄复合材料表现出更高的H ₂显影性能。SnS ₂纳米颗粒/ gC ₃ N ₄复合材料在没有任何贵金属作为助催化剂的情况下，可见光驱动的H ₂生成速率最高，为6305.18μmolh ^–1 g ^–1，约为SnS _2的16.98倍纳米粒子。总之，SnS ₂纳米颗粒（SnS ₂纳米颗粒/ gC ₃以（001）和（100）为主的N ₄复合物）的优选小面生长由于其合适的能带边缘实现光催化氧化还原反应而表现出显着的光催化活性。对光电流响应，线性扫描伏安图和光致发光的分析表明，低重组率和光生载流子的有效电荷转移可以归因于gC ₃ N ₄和SnS ₂的相互作用。