题目：Chemically bonded nonmetallic LSPR S-scheme hollow heterostructure for boosting photocatalytic performance

作者：Yu Che, Bo Weng, Kejian Li *, Zhilong He, Shifu Chen, Sugang Meng* 

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

摘要：The light absorption, mass transfer, and charges separation are essential to the efficiency of photocatalytic reaction, but constructing photocatalyst with the three excellent properties is still challenging. Herein, the interfacial Mo-S bonds and oxygen vacancy synchronously decorated MoO_3-x/Zn₃In₂S₆ (MoO_3-x/ZIS) heterostructure was rationally designed and synthesized. The oxygen-defective MoO_3-x nanotubes showed hollow structure and local surface plasmonic resonance (LSPR) effect, which improved mass transfer and solar light absorption. Besides, the built-in electric field and interfacial Mo-S bond provided endogenetic impetus and channels for rapid photoexcited charge carriers transfer and separation. The photocatalytic hydrogen (H₂) evolution and hydrogen peroxide (H₂O₂) production on optimal MoO_3-x/ZIS composite were 17.34 and 4.47 mmol g⁻¹ h⁻¹, respectively. The apparent quantum efficiency of MoO_3-x/ZIS for H₂ evolution at 400 nm was about 13.92%, which was 8.09 times higher than that of ZIS. Moreover, the MoO_3-x/ZIS also displayed excellent activities on the selective 5-hydroxymethylfurfural dehydrogenation. The in-situ X-ray photoelectron spectroscopy, electron paramagnetic resonance, in-situ selective photodeposition, and density functional theory calculation confirmed the S-scheme charge transfer pathway between MoO_3-x and ZIS. This study provides an effective avenue for designing multifunctional photocatalysts based on the synergistic effects of chemically bonded S-scheme heterostructure and nonmetallic LSPR effect.

影响因子：20.2

分区情况：一区

链接：https://authors.elsevier.com/a/1jsNH3Id%7Et8yZg

      https://doi.org/10.1016/j.apcatb.2024.124656

（文：孟苏刚 / 审核：韩满意 / 审校：曹静 / 终审：杨振兴）