Abstract Plasmonic nonmetal semiconductors with localized surface plasmon resonance (LSPR) effects possess extended light-response ranges and can act as highly efficient H2 generation photocatalysts. Herein, an LSPR-enhanced 0D/2D CdS/MoO3−x heterojunction has been synthesized by the growth of 0D CdS nanoparticles on 2D plasmonic MoO3−x elliptical nanosheets via a simple coprecipitation method. Taking advantage of the LSPR effect of the MoO3−x elliptical nanosheets, the light absorption of the CdS/MoO3−x heterojunction was extended from 600 nm to the near-infrared region (1400 nm). Furthermore, the introduction of 2D plasmonic MoO3−x elliptical nanosheets not only provided a platform for the growth of CdS nanoparticles, but also contributed to the construction of an LSPR-enhanced S-scheme structure due to the interface between the MoO3−x and CdS, accelerating the separation of light-induced electrons and holes. Therefore, the CdS/MoO3−x heterojunction exhibited higher photocatalytic H2 generation activity than pristine CdS under visible light irradiation, including under 420, 450, 550, and 650 nm monochromic light, as well as improved photo-corrosion performance.

中文翻译：

---

构建 LSPR 增强的 0D/2D CdS/MoO3− S 异质结，用于可见光驱动的光催化析氢

摘要 具有局域表面等离子体共振 (LSPR) 效应的等离子体非金属半导体具有扩展的光响应范围，可以作为高效的 H2 生成光催化剂。在此，LSPR 增强的 0D/2D CdS/MoO3-x 异质结是通过简单的共沉淀方法在二维等离子体 MoO3-x 椭圆纳米片上生长 0D CdS 纳米颗粒来合成的。利用 MoO3-x 椭圆纳米片的 LSPR 效应，CdS/MoO3-x 异质结的光吸收从 600 nm 扩展到近红外区域（1400 nm）。此外，二维等离子体 MoO3-x 椭圆形纳米片的引入不仅为 CdS 纳米粒子的生长提供了平台，而且由于 MoO3-x 和 CdS 之间的界面，还有助于构建 LSPR 增强的 S 型结构, 加速光生电子和空穴的分离。因此，CdS/MoO3-x 异质结在可见光照射下（包括 420、450、550 和 650 nm 单色光下）表现出比原始 CdS 更高的光催化产氢活性，以及​​改善的光腐蚀性能。