Herein, we report on a 3D MoS_x/Zn₃In₂S₆ nanoflower for efficient photocatalytic selective oxidation of benzyl alcohol (BA) to benzaldehyde (BAD) (100 % conversion and 96.18 % selectivity in 1 h) with simultaneous H₂ coproduction. The experimental results, in combination with DFT calculations, reveal that MoS_x not only endows photothermal properties of the composite but also acts as an electron transport bridge promoting photogenerated charge transfer, which in turn promotes the extraction of C_α-H to produce H₂. MoS_x/Zn₃In₂S₆ also demonstrated strong ability to selectively oxidize a lignin model compound, 2-phenoxy-1-phenylethanol (PP-ol), to 2-phenoxyacetophenone (PP-one) with H₂ coproduction. When incorporated with peroxydisulfate (PDS) for organic pollutant degradation, the MoS_x/Zn₃In₂S₆ showed exceptional efficiency with 99.51 % removal of 2-mercaptobenzothiazole (MBT) in 20 min. This is attributed to Mo⁴⁺/Mo⁵⁺/Mo⁶⁺ redox interactions that activate PDS and promote generation of reactive oxygen radicals. This work provides a feasible strategy to design photocatalyst for biomass valorization and organic pollutants degradation.

在此，我们报道了一种 3D MoS _x /Zn ₃ In ₂ S ₆纳米花，用于有效地将苯甲醇 (BA) 光催化选择性氧化为苯甲醛 (BAD)（1 小时内转化率为 100%，选择性为 96.18%），同时产生H ₂ . 实验结果结合DFT计算表明，MoS _x不仅赋予了复合材料的光热性能，而且还作为电子传输桥促进光生电荷转移，进而促进C _α -H 的提取产生H ₂ . MoS _x /Zn ₃ In ₂ S ₆还展示了将木质素模型化合物 2-苯氧基-1-苯乙醇 (PP-ol) 选择性氧化为 2-苯氧基苯乙酮 (PP-one) 并同时产生 H ₂的强大能力。当与过二硫酸盐 (PDS) 结合用于有机污染物降解时，MoS _x /Zn ₃ In ₂ S ₆显示出卓越的效率，20 分钟内 2-巯基苯并噻唑 (MBT) 去除率为 99.51%。这归因于激活 PDS 并促进活性氧自由基生成的Mo ⁴⁺ /Mo ⁵⁺ /Mo ^{6+氧化还原相互作用。}这项工作为设计用于生物质增值和有机污染物降解的光催化剂提供了一种可行的策略。