Abstract

A silver nanoprism solution was prepared by reacting silver nitrate (AgNO₃), trisodium citrate dihydrate (C₆H₅Na₃O₇·2H₂O), sodium borohydride (NaBH₄), and ascorbic acid (C₆H₈O₆) in distilled water. The successful formation of the silver nanoprisms was confirmed by UV–visible spectroscopy considering the 350–400 nm and 600–650 nm wavelength ranges. The C₆₀ fullerene nanowhisker-silver nanoprism composite was synthesized through a liquid-liquid interfacial precipitation (LLIP) method using C₆₀-saturated toluene, the silver nanoprism solution, and isopropyl alcohol and characterized by X-ray diffraction, Raman spectroscopy, scanning electron microscopy, and transmission electron microscopy. Its catalytic activity was assessed for the reduction of 2-nitrophenol by monitoring the reaction through UV–vis spectroscopy. A kinetics study was conducted, which indicated that the C₆₀ fullerene nanowhisker-silver nanoprism composite catalyzed reduction of 2-nitrophenol follows a pseudo-first-order reaction.

摘要

由硝酸银（AgNO ₃）、柠檬酸三钠二水合物（C ₆ H ₅ Na ₃ O ₇ ·2H ₂ O）、硼氢化钠（NaBH ₄）和抗坏血酸（C ₆ H ₈ O ₆ ）反应制备银纳米棱柱溶液) 在蒸馏水中。考虑到 350-400 nm 和 600-650 nm 波长范围，通过紫外-可见光谱证实银纳米棱柱的成功形成。C ₆₀富勒烯纳米晶须-银纳米棱柱复合材料是通过使用 C ₆₀的液-液界面沉淀 (LLIP) 方法合成的。-饱和甲苯、银纳米棱镜溶液和异丙醇，并通过 X 射线衍射、拉曼光谱、扫描电子显微镜和透射电子显微镜进行表征。通过紫外-可见光谱监测反应，评估其催化活性对 2-硝基苯酚的还原。动力学研究表明，C ₆₀富勒烯纳米晶须-银纳米棱柱复合材料催化的 2-硝基苯酚还原遵循准一级反应。