Deuterium (D₂), one of the stable isotopes of hydrogen, has immense applications in deuterium labeling, fusion reactors, neutron generation, optical fiber, and the biomedical industry. However, D₂ production employing conventional methods is highly energy intensive and makes it inevitable to explore simple and energy-efficient methods for the production of D₂. Therefore, the splitting of heavy water or deuterium oxide (D₂O) to produce deuterium gas (D₂) is a good option yet a very challenging process, unlike the splitting of water (H₂O) into hydrogen gas (H₂). In this context, this article demonstrates the 100% photoelectrocatalytic conversion of D₂O to D₂ instigated by newly synthesized Ag–TiO₂ Janus particles (JPs). In this approach, Ag–TiO₂ JPs were produced via a single-step emulsion-based technique and utilized as a photocatalyst for electrolytic D₂ production. Furthermore, the electronic band structure at the interface of Ag and TiO₂, in addition to the mechanism for the splitting of D₂O to D₂, has also been demonstrated.

中文翻译：

---

使用 Ag-TiO2 Janus 颗粒放大光电催化 D2O 分解：界面效应揭晓

氘 (D ₂ ) 是氢的稳定同位素之一，在氘标记、聚变反应堆、中子发生、光纤和生物医学工业中具有巨大的应用。然而，采用常规方法生产D _{2 的能源密集度很高，因此探索简单且节能的D 2}生产方法势在必行。因此，与水（H ₂ O ）分解为氢气（H ₂）不同，分解重水或氧化氘（ D ₂ O）产生氘气（D ₂）是一个不错的选择，但也是一个非常具有挑战性的过程。。在此背景下，本文演示了新合成的 Ag-TiO ₂ Janus 颗粒 (JPs)可以将 D ₂ O 100% 光电催化转化为 D ₂ 。在该方法中，Ag-TiO ₂ JPs 通过单步乳液技术生产，并用作电解 D ₂生产的光催化剂。此外，除了D ₂ O分裂成D ₂的机制之外，还证明了Ag和TiO ₂界面处的电子能带结构。