An eco-benign procedure was developed to synthesize ultrafine and discrete spherical shape silver nanoparticles (5–20 nm) in the presence of ionic liquid. Different types of leaves extract, including Cymbopogon nardus, Polygonum minus, Allium Cepa, and Petroselinum crispum, were used as a green reducing and capping agents for the synthesis process. The Ag nanoparticles were denoted as Ag_CN, Ag_PM, Ag_AC, and Ag_PC, respectively. Notably, it was demonstrated that the Ag nanoparticles' size could simply be altered by varying the amount of total phenolic content (TPC) using different leaves. It was indicated from the characterization results that the Ag_PC nanoparticles’ size was nine-fold smaller compared to the conventional Ag nanoparticles due to the high amount of total phenolic compounds (TPC) in the Petroselinum crispum. The results also revealed that ionic liquid and phenolic compounds had a synergistic effect on reducing silver ions (Ag⁺) into silver nanoparticles (Ag) and the stabilization of the nanoparticles. The order obtained for the degradation of methylene blue (MB) was Ag_PC > Ag_PM > Ag_CN > Ag_AC > Ag was influenced by a large amount of TPC and led to a decrease in particle size and enhanced photocatalytic activity. The Ag_PC remained effective and stable even after five subsequent cycles.

开发了一种生态友好的程序，可在离子液体存在下合成超细且离散的球形银纳米颗粒（5–20 nm）。不同种类的叶提取物，包括C柏，何首乌，葱属和香菇，被用作合成过程的绿色还原剂和加帽剂。Ag纳米粒子表示为Ag _CN，Ag _PM，Ag _AC和Ag _PC， 分别。值得注意的是，已证明可以通过使用不同的叶子改变总酚含量（TPC）的量来简单地改变Ag纳米颗粒的大小。从表征结果表明，由于在Petroselinum crispum中大量的总酚类化合物（TPC），与传统的Ag纳米颗粒相比，Ag _PC纳米颗粒的尺寸小9倍。结果还表明，离子液体和酚类化合物具有将银离子（Ag ⁺）还原为银纳米颗粒（Ag）和稳定纳米颗粒的协同作用。亚甲基蓝（MB）的降解顺序为：Ag _PC  > Ag _PM  > Ag _CN > Ag _AC  > Ag受大量TPC的影响，导致粒径减小和光催化活性增强。Ag _PC即使在随后的五个周期后仍保持有效和稳定。