Facile fabrication of visible light responsive multicomponent heterostructure photocatalysts with synergistic photoelectron migration is an effective approach with potential application in water remediation and renewable energy generation. In this study, a series of ternary multi-heterojunction CdS/Bi₂₀TiO₃₂/Bi₄Ti₃O₁₂ (CdSxBTC) photocatalysts were prepared by hydrothermal deposition of CdS nanoparticles (15–25 nm) over one pot combustion synthesized Bi₂₀TiO₃₂/Bi₄Ti₃O₁₂ (BTC) nanostructures. Comprehensive characterization of the ternary composites revealed enhanced optical absorption, high interfacial contact, fast electron channelization and a prolonged excited state life time. The CdSxBTC composite materials displayed enhanced photocatalytic activity for endosulfan degradation (k_app value 6–12 times greater than pure semiconductors) and water splitting reaction (H₂ production rate 1890 μmolg⁻¹h⁻¹ and apparent conversion efficiency 19%). The cell viability -study disclosed non-cytotoxic nature of the treated endosulfan solution. A synergistic Type-I bridged coupled Z-scheme electron migration process accounted for robust radical generation ability (^•O₂⁻ and ^•OH) and photocatalytic activity of the ternary composites.

具有协同光电子迁移的可见光响应多组分异质结构光催化剂的轻松制造是一种有效的方法，在水修复和可再生能源发电方面具有潜在的应用价值。在这项研究中，一系列三元多异质结 CdS/Bi ₂₀ TiO ₃₂ /Bi ₄ Ti ₃ O ₁₂ (CdSxBTC) 光催化剂是通过水热沉积 CdS 纳米粒子 (15-25 nm) 在一锅燃烧合成的 Bi ₂₀ TiO 上制备的₃₂ /Bi ₄ Ti ₃ O ₁₂(BTC) 纳米结构。三元复合材料的综合表征显示出增强的光吸收、高界面接触、快速电子通道化和延长的激发态寿命。CdSxBTC 复合材料对硫丹降解（k _app值是纯半导体的 6-12 倍）和水分解反应（H ₂产率 1890 μmolg ^-1 h ^-1和表观转化效率 19%）显示出增强的光催化活性。细胞活力研究揭示了处理过的硫丹溶液的非细胞毒性性质。一种协同的 I 型桥接耦合 Z 型电子迁移过程解释了强大的自由基生成能力 ( ^• O ₂^-和^• OH) 和三元复合材料的光催化活性。