Biomolecule-Assisted Synthesis of Nanocrystalline CdS and Bi<sub>2</sub>S<sub>3</sub>for Photocatalytic Hydrogen Evolution

• 作者: Caolong Li Jian Yuan Mingxia Chen Wei Chen Wenfeng Shangguan
• 来源期刊: 纳米科学与工程(英文)
• 学科: 化学
• 关键词: CDS BI2S3 Photocatalyst Hydrogen Evolution Ostwal RIPENING
• 年，卷（期）: 2011,（3）
• 页码范围: 79-83
• 页数: 5页
• 分类号: O6

摘要

Novel CdS and Bi2S3 hollow nanospheres were prepared by simple “one-pot” biomolecule-assisted hydrothermal method using glutathione (GSH) as sulfur source and structure-directing reagents. The single-phase CdS and Bi2S3 photocatalysts were capable of evolving H2 from aqueous solutions containing a sacrificial electron donor, under visible light irradiation (λ ≥ 420 nm) with Pt co-catalyst. A possible formation mechanism of complexation, S-C bond rupture, and spherical aggregate followed isotropic Ostwal ripening or anisotropic Ostwal ripening was proposed in this study.