ABSTRACT

Efficient nanocatalyst with incredible performance is highly demanding in a heterogeneous catalysis system. Herein, we report the facile fabrication of uniform and highly stable Cerium Oxide nanoparticles (CeO₂ NPs), through chemical precipitation method using sodium hydroxide as reducing agent. The synthesized material is characterized through highly sophisticated techniques including UV-Visible, FT-IR, SEM, AFM, XRD, and Zeta Sizer- Potential to check the particle formation, surface morphology, topography, crystalline nature, size, and surface potential. The heterogeneous catalytic performance of CeO₂ NPs has been accomplished for the reduction of 2-nitroaniline from the aqueous media. The CeO₂ nanocatalyst displayed excellent reusability, while the reduction in several repetitive catalytic cycles against 2-nitroaniline under optimized conditions. The CeO₂ nanocatalyst shows 99.12% efficiency within 60s reaction time under a greener source of microwave radiation.

摘要

在多相催化系统中，具有令人难以置信的性能的高效纳米催化剂的要求很高。在此，我们报告了通过使用氢氧化钠作为还原剂的化学沉淀法，轻松制备均匀且高度稳定的氧化铈纳米颗粒（CeO _{2 NPs）。}合成材料通过高度复杂的技术进行表征，包括 UV-Visible、FT-IR、SEM、AFM、XRD 和 Zeta Sizer-Potential，以检查颗粒形成、表面形态、形貌、结晶性质、尺寸和表面电位。_{CeO 2} NPs的非均相催化性能已用于从水介质中还原 2-硝基苯胺。首席执行官₂纳米催化剂表现出优异的可重复使用性，同时在优化条件下减少了对 2-硝基苯胺的多次重复催化循环。在更环保的微波辐射源下，CeO _{2纳米催化剂在 60 秒的反应时间内显示出 99.12% 的效率。}