The effect of Ag doping on the properties and photocatalytic activity of In₂S₃ nanoparticles (NPs) was investigated. Pure In₂S₃ and Ag-doped In₂S₃ NPs were prepared using a conventional chemical solution process. Different Ag concentrations were used to determine the optimal doping concentration. X-ray diffraction (XRD) results indicated that all the prepared NPs had a polycrystalline cubic crystal structure. In addition, the XRD peaks of the Ag-doped In₂S₃ NPs showed a slight shift to lower 2θ values than those of the pure In₂S₃ NPs, indicating the successful incorporation of Ag into the In₂S₃ lattice. The chemical bonding states and composition of the prepared In₂S₃ NPs were investigated using X-ray photoelectron spectroscopy. The photocatalytic abilities of the pure and Ag-doped In₂S₃ NPs under visible-light illumination were evaluated systematically and compared for the decomposition of (i) tetracycline (TC), which is widely used as an antibiotic, and (ii) methylene blue (MB) and rhodamine B (RhB), which are toxic dyes widely used in textile factories. Waste from the production of TC, MB, and RhB has a detrimental impact on the environment and on human health. Overall, the Ag-doped In₂S₃ NPs exhibited better performance than pure In₂S₃ NPs for the photocatalytic degradation of TC with higher removal efficiencies. For the Ag: In₂S₃(2) sample with ∼ 1.4 at.% of Ag, the degradation of TC, MB, and RhB after 3 h was 76.4%, 96.1% and 99.5%, respectively. Furthermore, the Ag-doped In₂S₃ NPs showed improved hydrogen production via photoelectrochemical water splitting compared to pure In₂S₃ NPs.

研究了Ag掺杂对In ₂ S ₃纳米粒子(NPs)的性质和光催化活性的影响。使用传统的化学溶液工艺制备纯 In ₂ S ₃和掺银 In ₂ S ₃ NP。使用不同的 Ag 浓度来确定最佳掺杂浓度。X射线衍射（XRD）结果表明，所有制备的纳米颗粒都具有多晶立方晶体结构。此外，Ag 掺杂的 In ₂ S ₃ NPs的 XRD 峰显示出比纯 In ₂ S _{3 的}那些略微移动到更低的 2θ 值。NPs，表明 Ag 成功并入 In ₂ S ₃晶格。使用X射线光电子能谱研究了制备的In ₂ S ₃ NPs的化学键合状态和组成。系统地评估了纯的和掺杂 Ag 的 In ₂ S ₃ NPs 在可见光照射下的光催化能力，并比较了（i）广泛用作抗生素的四环素（TC）和（ii）亚甲基的分解蓝色 (MB) 和罗丹明 B (RhB) 是纺织厂广泛使用的有毒染料。TC、MB 和 RhB 生产过程中产生的废物会对环境和人类健康产生不利影响。总体而言，Ag 掺杂的 In ₂S ₃ NPs在光催化降解 TC 方面表现出比纯 In ₂ S ₃ NPs更好的性能，具有更高的去除效率。对于Ag：在含有约1.4 at.% Ag 的₂ S ₃ (2) 样品中，3 小时后TC、MB 和RhB 的降解率分别为76.4%、96.1% 和99.5%。此外，与纯 In ₂ S ₃ NPs相比，Ag 掺杂的 In ₂ S ₃ NPs 通过光电化学水分解显示出改善的氢气产量。