Laser Ablation of Silver in Liquid Organic Monomer: Influence of Experimental Parameters on the Synthesized Silver Nanoparticles/Graphite Colloids

2017 ◽  
Vol 121 (27) ◽  
pp. 6646-6654 ◽  
Author(s):  
Maxime Delmée ◽  
Grégory Mertz ◽  
Julien Bardon ◽  
Adeline Marguier ◽  
Lydie Ploux ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Experimental Parameters ◽  
Organic Monomer

Silver nanoparticles synthesized by laser ablation confined in urea choline chloride deep-eutectic solvent

2016 ◽  
Vol 12 ◽  
pp. 1-4 ◽  
Author(s):  
David O. Oseguera-Galindo ◽  
Roberto Machorro-Mejia ◽  
Nina Bogdanchikova ◽  
Josue D. Mota-Morales
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Choline Chloride ◽  
Deep Eutectic Solvent

scholarly journals Photochemical Synthesis of Gold and Silver Nanoparticles—A Review

Molecules ◽  
2021 ◽  
Vol 26 (15) ◽  
pp. 4585
Author(s):  
Nicole Jara ◽  
Nataly S. Milán ◽  
Ashiqur Rahman ◽  
Lynda Mouheb ◽  
Daria C. Boffito ◽  
...  
Keyword(s):  
Silver Nanoparticles ◽  
Surface Chemistry ◽  
Metallic Nanoparticles ◽  
Colloidal Stability ◽  
Photochemical Synthesis ◽  
Gold And Silver Nanoparticles ◽  
Future Developments ◽  
Technological Advances ◽  
Experimental Parameters ◽  
Sophisticated Equipment

Nanomaterials have supported important technological advances due to their unique properties and their applicability in various fields, such as biomedicine, catalysis, environment, energy, and electronics. This has triggered a tremendous increase in their demand. In turn, materials scientists have sought facile methods to produce nanomaterials of desired features, i.e., morphology, composition, colloidal stability, and surface chemistry, as these determine the targeted application. The advent of photoprocesses has enabled the easy, fast, scalable, and cost- and energy-effective production of metallic nanoparticles of controlled properties without the use of harmful reagents or sophisticated equipment. Herein, we overview the synthesis of gold and silver nanoparticles via photochemical routes. We extensively discuss the effect of varying the experimental parameters, such as the pH, exposure time, and source of irradiation, the use or not of reductants and surfactants, reagents’ nature and concentration, on the outcomes of these noble nanoparticles, namely, their size, shape, and colloidal stability. The hypothetical mechanisms that govern these green processes are discussed whenever available. Finally, we mention their applications and insights for future developments.

QUENCHING OF SURFACE PLASMON MODES IN COLLOIDAL SILVER NANOPARTICLES ON OZONIZATION

NANO ◽  
2006 ◽  
Vol 01 (03) ◽  
pp. 229-234
Author(s):  
R. K. RAKSHIT ◽  
SAYANTANI BHATTACHARYA ◽  
R. C. BUDHANI
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Surface Plasmon ◽  
Effective Medium Theory ◽  
Plasmon Mode ◽  
Colloidal Silver ◽  
Medium Theory ◽  
Bright Yellow ◽  
Plasmon Peak ◽  
Colloidal Silver Nanoparticles

Oxidation characteristics of colloidal silver nanoparticles produced by pulsed laser ablation in pure and chemically treated water are studied as a function of the degree of ozonization. The bright yellow colloidal solution of silver characterized by a sharp surface plasmon mode at ~400 nm, becomes colorless in the initial stages of O 3 flow, and then acquires a brown hue with a broad plasmon peak centered at ~440 to ~450 nm on further ozonization. The solution again becomes colorless in a few days once the O 3 flow is stopped. We present a qualitative model for the reaction dynamics and analyze the optical absorption in the framework of an effective medium theory. The aqueous phase laser ablation chemistry described here provides a unique means to produce ionic silver for enhanced antimicrobial effects.

Spectral aging of gold and silver nanoparticles synthesized by laser ablation in liquids

2019 ◽  
Vol 13 (02) ◽  
pp. 1 ◽  
Author(s):  
Puteri Haslinda Megat Abdul Hedei ◽  
Saleh K. Alsaee ◽  
Ahmad Fairuz Omar ◽  
Uda Hashim ◽  
Noor Haida Mohd Kaus
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Gold And Silver Nanoparticles ◽  
Laser Ablation In Liquids

Properties Studies of Silver Nanoparticles Colloids in Ethanol Prepared by Means Pulses Laser

2019 ◽  
Vol 60 ◽  
pp. 154-161
Author(s):  
Raad Sh. Alnayli ◽  
Hanan Alkazaali
Keyword(s):  
Silver Nanoparticles ◽  
Laser Ablation ◽  
Continuous Wave ◽  
Laser Pulses ◽  
Beam Power ◽  
Refractive Indices ◽  
Visible Absorption ◽  
Single Beam ◽  
Non Linear ◽  
Uv Visible

In this work we study the influence of the laser pulses silver nanoparticles productivity during laser ablation of silver immersed in liquid. Ag nanoparticles were synthesized by pulsed laser ablation of Ag targets in ethanol using the (1064 nm, Q-switched, Nd:YAG) laser with energy of 140 mJ per pulse. UV-Visible absorption spectra were used for the characterization and comparison of products. The non-linear refractive index and absorption coefficient of silver nanoparticles were investigated using a single beam z-scan technique; the excitation source was a continuous wave (CW) of 650 nm diode laser with a beam power of 50 mW. All investigated samples showed negative-induced non-linear refractive indices.

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