材料科学
铟
光催化
氧化物
贵金属
兴奋剂
化学工程
纳米颗粒
光致发光
陶瓷
无机化学
傅里叶变换红外光谱
纳米技术
催化作用
金属
复合材料
光电子学
冶金
有机化学
化学
工程类
作者
Muhammad Numan Shabbir,Rusul Alabada,Muhammad Aadil,Zubair Ahmad,Asma A. Alothman,Nada A. Almuhous,Wajid Khan,Rasha M.K. Mohamed
标识
DOI:10.1016/j.ceramint.2023.11.143
摘要
This work presents a cost-effective methodology for simplifying the preparation of doped ceramic materials at the nanoscale. Pristine indium oxide (IO) and Ag-doped indium oxide (IAO) have been synthesized using a sophisticated wet-chemical method with adjusted physical conditions, surfactant addition rate, and annealing temperature to tailor the desired structural characteristics. The effect of silver doping on the indium oxide ceramic's electronic, optical, electrical, physical, and structural features has been studied using XRD, FTIR, photoluminescence (PL), UV/Vis, I–V SEM, and EDX techniques. The noble metal doping decreased the band gap, slowed the e−/h+ recombination probability, induced structural defects, and tuned the surface-to-volume ratio; all these features made the doped catalyst a more promising candidate for photocatalytic application than the undoped counterpart. According to the pseudo-first-order kinetic model, the IAO photocatalyst demonstrated a reaction rate of 0.20 min−1, resulting in the efficient elimination of 87.2 % of the crystal violet (CV) dye. The indium oxide doped with noble metal exhibited a remarkable retention rate of 96.5 % in cyclic activity after undergoing four reusability tests. The scavenging tests have shown that the hydroxyl free radical is the predominant species involved in the process of dye degradation. The physical and application investigations have shown that our recently produced nanostructured material, doped with noble metals and indium oxide, has promise as a viable material for effective light absorption and quick elimination of azo dyes.
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