题目：Tunable interfacial charge transfer in a nickel sulfide/red phosphorus composite for efficient benzyl alcohol selective oxidation: Effect of nickel sulfide crstal phase

作者：Xin Jin（金昕，2022级研究生）, Haili Lin, Xuemei Jia*（贾雪梅）, Shuang Li, Xinyue Li, Qianlong Wang, Shifu Chen, Jing Cao*（曹静）

单位：Key Laboratory of Green and Precise Synthetic and Applications, Ministry of Education; Anhui Provincial Key Laboratory of Synthetic Chemistry and Applications; College of Chemistry and Materials Science, Huaibei Normal University, Huaibei, Anhui 235000, P. R. China

摘要：Red phosphorus (RP) has recently attracted considerable attention in the field of photocatalysis owing to its remarkable optical properties. However, the rapid recombination of photogenerated carriers presents a substantial challenge for the application of RP in the selective photocatalytic oxidation of benzyl alcohol. Herein, a series of nickel sulfide (NiS) materials with different crystal phase, including α-NiS, β-NiS and α-β-NiS, were employed to modulate the interfacial charge transfer in RP for photocatalytic oxidation of benzyl alcohol (BA) coupled with H₂ evolution. A comprehensive array of experimental and theoretical analyses has demonstrated that the Ohmic junction formed between β-NiS and RP is more conducive to enhancing the separation and migration of carriers in comparison to the Schottky junction formed between α-NiS and RP. As expected, the β-NiS/RP exhibited superior photocatalytic performance, achieving higher yields of benzaldehyde (6.79 μmol g^–1 h^–1) and H₂ (7.16 μmol g^–1 h^–1) compared to α-NiS/RP, α-β-NiS(glo)/RP and α-β-NiS(fla)/RP. The observed enhancement in photocatalytic activity can primarily be attributed to the distinct carrier separation mechanisms, specifically the Ohmic contact in the β-NiS/RP system and the Schottky junction in the α-NiS/RP system. This study introduces an effective strategy for optimizing carrier migration mechanisms in composite catalysts via crystal phase modulation, thereby providing valuable insights into the design of highly efficient photocatalysts for energy and environmental applications.

影响因子：9.4

分区情况：一区

年、卷、页：2025，690，137315

链接：https://doi.org/10.1016/j.jcis.2025.137315

（文、图：贾雪梅 /   审核：韩满意 /   审校：曹静 /     终审：杨振兴）