8/6/2023 0 Comments Lecroy wavesurfer 434![]() ![]() Recently, atmospheric-pressure plasma jets have received a lot of interest as a promising green means for the synthesis of nanomaterials. In addition, stabilizers such as citrate, polyvinyl alcohol, polyvinyl pyrrolidone, bovine serum albumin, and cellulose are extensively used to avoid aggregation of nanoparticles. To create silver nanoparticles, it is necessary to add chemical reducing agents to silver salt ions and reduce silver ions in boiling water. ![]() Among these synthesis routes, the chemical reduction method has been widely used due to its advantages of simplicity, high yield, no aggregation, and low cost. Silver nanoparticles ( AgNPs) can be fabricated by various methods, such as thermal evaporation, plasma synthesis, microwave-assisted synthesis, gamma ray-assisted synthesis, spray pyrolysis, laser ablation, citrate reduction, and electrochemical synthesis. Metal nanoparticles have interesting physical, electrical, optical, and antimicrobial characteristics that make them useful in various fields, including biomedicine, healthcare, food storage, textiles, agriculture, catalysis, optical sensors, flexible electronics, solar cells, drug delivery, cosmetics, antimicrobial action, chemical sensing, and environmental engineering. Next, we demonstrated that plasma-synthesized NPs exhibited a significant degradation of methylene blue dye. Plasma-assisted citrate reduction facilitates the synthesis of NPs, and citrate-capped nanoparticles are stabilized in an aqueous solution due to their repulsive force. A larger amount of NPs were produced from the 8.5 cm plume jet with a higher pH and a larger number of aqua electrons, indicating that the synergetic effect between plasma electrons and citrate plays an important role in the plasma synthesis of NPs. Plasma synthesis of NPs was more effective in the 8.5 cm plume jet than in the shorter and longer plume jets. The amount of NPs increased in a plasma exposure duration-dependent manner. The plasma-synthesized NPs exhibited quasi-spherical shape with an average particle diameter of about 5.9−7.5 nm, and their absorption spectra showed surface plasmon resonance peaks at approximately 406 nm. Homogenous colloidal NPs solutions were produced by treating a A g N O 3-trisodium citrate-deionized water with an atmospheric-pressure argon plasma jet. Citrate-capped silver nanoparticles ( NPs) were synthesized by a simple plasma-assisted reduction method.
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