The synthesized g-C₃N₄/MoS₂ composite was a high-efficiency photocatalytic for hypophosphite oxidation. In this work, a stable and cheap g-C₃N₄ worked as the chelating agent and combined with the MoS₂ materials. The structures of the fabricated g-C₃N₄/MoS₂ photocatalyst were characterized by some methods including X-ray diffraction (XRD), scanning electron microscopy (SEM), and X-ray photoelectron spectra (XPS). Moreover, the photocatalytic performances of various photocatalysts were measured by analyzing the oxidation efficiency of hypophosphite under visible light irradiation and the oxidation efficiency of hypophosphite using the g-C₃N₄/MoS₂ photocatalyst which was 93.45%. According to the results, the g-C₃N₄/MoS₂ composite showed a promising photocatalytic performance for hypophosphite oxidation. The improved photocatalytic performance for hypophosphite oxidation was due to the effective charge separation analyzed by the photoluminescence (PL) emission spectra. The transient photocurrent response measurement indicated that the g-C₃N₄/MoS₂ composites (2.5 μA cm^–2) were 10 times improved photocurrent intensity and 2 times improved photocurrent intensity comparing with the pure g-C₃N₄ (0.25 μA cm^–2) and MoS₂ (1.25 μA cm^–2), respectively. The photocatalytic mechanism of hypophosphite oxidation was analyzed by adding some scavengers, and the recycle experiments indicated that the g-C₃N₄/MoS₂ composite had a good stability.

中文翻译：

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改进次磷酸酯氧化用g-C3N4 / MoS2复合材料的光催化性能

合成的gC ₃ N ₄ / MoS ₂复合材料是高效的光催化次磷酸盐氧化催化剂。在这项工作中，稳定廉价的gC ₃ N ₄作为螯合剂并与MoS ₂材料结合。制成的gC ₃ N ₄ / MoS _2的结构通过包括X射线衍射（XRD），扫描电子显微镜（SEM）和X射线光电子能谱（XPS）在内的某些方法对光催化剂进行了表征。此外，通过使用gC ₃ N ₄ / MoS ₂光催化剂分析在可见光照射下的次磷酸盐的氧化效率和次磷酸盐的氧化效率为93.45％，从而测量了各种光催化剂的光催化性能。根据结果​​，gC ₃ N ₄ / MoS ₂复合材料对次磷酸盐的氧化显示出有希望的光催化性能。次磷酸盐氧化的改进的光催化性能归因于通过光致发光（PL）发射光谱分析的有效电荷分离。瞬态光电流响应测量表明，与纯gC ₃ N ₄（  0.25μA cm ^{– 2}）相比，gC ₃ N ₄ / MoS ₂复合物（  2.5μA cm ^–2）的光电流强度提高了10倍，光电流强度提高了2倍^{。 2}）和MoS ₂（1.25  μ阿厘米^-2）， 分别。通过添加一些清除剂分析了次磷酸盐的光催化机理，循环实验表明gC ₃ N ₄ / MoS ₂复合材料具有良好的稳定性。