Abstract In this study, we synthesized spherical mixed-valence rhenium oxide (MVReO) nanoparticles with localized surface plasmon resonances (LSPRs) covering visible and NIR region. The spherical MVReO nanoparticles were converted into hydrogen rhenium bronze (HxReO3) nanosheets when dispersed in aqueous solution due to the hydrogen insertion into lattice. More importantly, the HxReO3 nanosheets exhibit enhanced LSPR strength and red-shifted LSPR wavelength. The dispersion of HxReO3 in aqueous solution provides a fascinating way for the light-harvesting enhancement as well as a compatible way for the subsequent growth of CdS to form HxReO3-CdS. The photocatalysis experiments of the HxReO3-CdS hetero-nanocrystals have been performed for the first time. Photocatalytic hydrogen production rate of the HxReO3-CdS is about 92.6 times that of the pure CdS, which is attributed to the HxReO3 for both increasing the light absorption and promoting the electron transfer. These results provide a new strategy to prepare plasmon-exciton hybrids with non-metal plasmonic nanomaterials for photocatalysis applications.

中文翻译：

---

氧化铼纳米片的氢化和等离子体增强光催化活性

摘要 在这项研究中，我们合成了球形混合价氧化铼 (MVReO) 纳米粒子，具有覆盖可见光和近红外区域的局域表面等离子体共振 (LSPR)。由于氢插入晶格，当分散在水溶液中时，球形 MVReO 纳米颗粒转化为氢铼青铜 (HxReO3) 纳米片。更重要的是，HxReO3 纳米片表现出增强的 LSPR 强度和红移 LSPR 波长。HxReO3 在水溶液中的分散为光捕获增强提供了一种引人入胜的方式，也为 CdS 的后续生长形成 HxReO3-CdS 提供了一种兼容方式。首次进行了 HxReO3-CdS 异质纳米晶的光催化实验。HxReO3-CdS 的光催化产氢率约为 92。是纯 CdS 的 6 倍，这归因于 HxReO3 既增加了光吸收又促进了电子转移。这些结果为制备用于光催化应用的非金属等离子体纳米材料的等离子体激子杂化物提供了一种新策略。