Simple Controlling Ecofriendly Synthesis of Silver Nanoparticles at Room Temperature Using Lemon Juice Extract and Commercial Rice Vinegar

Abstract

Silver nanoparticles were prepared in an ecofriendly manner at room temperature via the stepwise-modified Tollens route using the lemon juice extract and commercial rice vinegar. In this work, the lemon juice extract—a natural-origin chemical—was used as a reducing and stabilizing agent, and commercial rice vinegar was used to create a low acidic environment to control the silver nanoparticle growth via the stepwise method. The average dimension of silver nanoparticles was qualitatively evaluated through the UV-Vis spectra via the Mie theory. The X-ray diffraction and field emission scanning electron spectroscopy were employed to study the purity, the crystal structure, and the morphology of samples, respectively. Due to the weak activity and low purity of ecofriendly chemicals, the reaction and baking times strongly affect the preparation efficiency in obtaining small-size silver nanoparticles (∼40 nm). The highest efficiency was obtained with 24 h reaction time and 48 h baking time. The bimodal distribution of the size of silver nanoparticles was observed by UV-Vis analysis and field emission scanning electron microscopy. The obtained small-size silver nanoparticles (∼40 nm) have a uniform dimension. The quality of the obtained silver nanoparticles was evaluated through the conducting properties of silver paint made from ecosynthesized silver nanoparticles which showed a promising prospect to develop green-synthesized silver paint working at room temperature.

Perspectives on Green Chemistry and the Application of Nvivo 12 Software: A Case Study of Pandemic Period in Chemistry Education

“…The survey results show that the students are not confident about minimizing the use of energy during reactions in the laboratory. This finding disagrees with various studies that have successfully conducted experiments, such as on reactions and synthesis of organic compounds, at room temperature even without heating (Luu et al, 2020;Xiao & Fu, 2019;Zhi et al, 2020). The findings of this recent study provide pivotal information for chemistry education lecturers to understand and implement the principles of green chemistry in laboratory experiments (Azhari & Supratman, 2021) through practical and theoretical examples.…”

Facile Synthesis of Silver Nanoparticles and Preparation of Conductive Ink

“…Besides affecting the yield of nanoparticles, the reaction temperature plays a crucial role in determining the nanoparticle size [ 31 , 32 ]. With the AgNO 3 :Na 3 C 6 H 5 O 7 :C 6 H 8 O 6 ratio fixed at 1:6:1, the effect of reaction temperature (20, 60, and 100 °C) on the growth of the nanoparticles was examined.…”

Green preparation of nano‐silver aqueous solution using fructose and evaluation of its antibacterial potential for cut carnation flowers

“…The green synthesis of nanoparticles is a significant new research field of nanotechnology that has the advantages of simplicity, environmental benignity, and cost-effectiveness, compared to chemical and physical approaches [8]. In the present study, a neutral NS solution was successfully green prepared with D-fructose as the reducing agent and PVP as the capping agent at room temperature (25 • C) for 2 h. Compared to conventional chemical preparation methods and other green synthesis approaches, the proposed one-step green preparation method of NS solution possessed the advantages of simplicity, relatively shorter time, and reduced use of toxic chemical reagents, which will likely obviate potential health and eco-toxicity hazards [24,25,37]. A neutral NS aqueous solution with good stability was obtained by a simple, convenient, and environmentally friendly preparation, which can reduce the high cost and environmental pollution concerns of conventional synthesis methods.…”

“…A neutral NS aqueous solution with good stability was obtained by a simple, convenient, and environmentally friendly preparation, which can reduce the high cost and environmental pollution concerns of conventional synthesis methods. Based on the LaMer mechanism, the green synthesis of NS can be divided into three main phases: activation phase, growth phase, and termination phase [37]. In the activation phase, the redox reaction between Tollens reagent and D-fructose occurs, and Ag + ion is reduced to silver atoms.…”