scholarly journals Facile morphology control of gold(0) structures from aurophilic assemblies

2020 ◽  
Vol 49 (14) ◽  
pp. 4200-4205
Author(s):  
Elisabet Aguiló ◽  
Mariona Dalmases ◽  
Mengxi Lin ◽  
João Carlos Lima ◽  
Raquel Gavara ◽  
...  
Keyword(s):  
Ag Nanoparticles ◽  
Organometallic Compounds ◽  
Morphology Control ◽  
Reducing Agents ◽  
Gold Microstructures

Different gold microstructures have been synthesized by using supramolecular gold(i) organometallic compounds as templates and Ag nanoparticles as reducing agents.

Controlled synthesis of functional Ag, Ag–Au/Au–Ag nanoparticles and their Prussian blue nanocomposites for bioanalytical applications

RSC Advances ◽  
2015 ◽  
Vol 5 (61) ◽  
pp. 49671-49679 ◽  
Author(s):  
Prem. C. Pandey ◽  
Richa Singh ◽  
Yashashwa Pandey
Keyword(s):  
Prussian Blue ◽  
Ag Nanoparticles ◽  
Active Role ◽  
Reducing Agents ◽  
Controlled Synthesis ◽  
Bioanalytical Applications

A facile method for the synthesis of functional AgNPs and bimetallic Ag–Au/Au–Ag are reported, enabling the formation of nanocomposite with prussian blue in a crystalline framework for bioanalytical applications, showing the active role of organic reducing agents and 3-aminopropyltrimethoxysilane.

Morphology control of the produced Ag nanoparticles by soft-template technique

2003 ◽  
Vol 260 (2) ◽  
pp. 440-442 ◽  
Author(s):  
Cuiying Wang ◽  
Jiye Fang ◽  
Jibao He ◽  
Weilei Zhou ◽  
Kevin L. Stokes
Keyword(s):  
Ag Nanoparticles ◽  
Morphology Control ◽  
Soft Template

Recent progress in tin-based perovskite solar cells

2021 ◽  
Author(s):  
Jiupeng Cao ◽  
Feng Yan
Keyword(s):  
Solar Cells ◽  
Recent Progress ◽  
Perovskite Solar Cells ◽  
Morphology Control ◽  
Reducing Agents ◽  
Comprehensive Review ◽  
Device Engineering

This work provides a comprehensive review on strategies like reducing agents, morphology control, compositional engineering and device engineering for fabricating efficient and stable tin-based perovskite solar cells.

scholarly journals Effect of Reducing Agents on Physical and Chemical Properties of Silver Nanoparticles

2018 ◽  
Vol 18 (4) ◽  
pp. 614 ◽  
Author(s):  
Roto Roto ◽  
Hani Prima Rasydta ◽  
Adhitasari Suratman ◽  
Nurul Hidayat Aprilita
Keyword(s):  
Silver Nanoparticles ◽  
Ascorbic Acid ◽  
Zeta Potential ◽  
Physical Properties ◽  
Ag Nanoparticles ◽  
Chemical Reduction ◽  
Chemical Properties ◽  
Reducing Agents ◽  
Uniform Size ◽  
Crystal System

Silver nanoparticles having uniform size and shape, a diameter range of 10–50 nm, excellent stability, and high zeta potential are always desirable for many applications. The silver nanoparticles were synthesized by chemical reduction method using some reducing agents in a polyvinyl alcohol solution. This study aims at determining the effect of reducing agents on the chemical and physical properties of silver nanoparticles. Ascorbic acid, sodium borohydride, hydrazine, sodium citrate, and glucose were used as reducing agents. Surface Plasmon Resonance (SPR) absorbance, morphology, zeta potential, crystal system, and stability of the products were studied. The results showed that the chemical and physical properties of the colloidal Ag nanoparticles were dependent on the reducing agents. In general, the produced silver nanoparticles have an fcc crystal system with a unit cell of 4.0906–4.0992 Å. The SPR absorbance of the colloids has the peak in the range of 401–433 nm. We found that the colloid of silver nanoparticles prepared by using ascorbic acid has uniform spherical shape, the diameter of about 20 nm, and zeta potential of -10.4 mV. After being stored for one month, the SPR absorbance of the colloid decreased by only 5%. This type of colloidal Ag nanoparticles prepared by using ascorbic acid is expected to be used for chemical sensors, an antibacterial agent, and so on.

scholarly journals Silver nanoparticles: Green Synthesis and Their Antibacterial efficiency

2021 ◽  
Vol 59 (2) ◽  
pp. 214
Author(s):  
Dung Ngo Thanh ◽  
Nguyet Ha Minh ◽  
Tam Le Thi Thanh ◽  
Lu Le Trong
Keyword(s):  
Silver Nanoparticles ◽  
Antibacterial Activity ◽  
Green Synthesis ◽  
Silver Nitrate ◽  
Tannic Acid ◽  
Ag Nanoparticles ◽  
Sodium Citrate ◽  
Reducing Agents ◽  
Ag Nps ◽  
Silver Nps

In this study, silver nanoparticles were synthesized from aqueous silver nitrate through a simple and eco-friendly route using a combination of two reducing agents: sodium citrate and tannic acid. By this method, the obtained Ag nanoparticles (NPs) were stable within the studied period of six months. Besides, both TEM images and UV-Vis results showed that the size of silver NPs could be controlled by changing the concentration of tannic acid. The antibacterial ability of Ag NPs with different sizes were also examined. In detail, the smaller the Ag NPs were, the more efficient their antibacterial activity was.

scholarly journals Characterizations of Ag Nanoparticles Prepared by Different Reducing Agents

2018 ◽  
Vol 2 (1) ◽  
Keyword(s):  
Particle Size ◽  
Ag Nanoparticles ◽  
Leaf Extract ◽  
Average Particle Size ◽  
Particle Morphology ◽  
Reducing Agents ◽  
Average Particle ◽  
Good Surface ◽  
Reducing Ability ◽  
Granular Particle

Pure Ag nanoparticles were successfully prepared by using KBH4 , ascorbic acid, and holly leaf extract as reducing agents. The prepared Ag nanoparticles were characterized by various techniques to understand their chemical and physical properties. All the Ag nanoparticles showed granular particle morphology with a nano-scale size of 16.1- 29.2 nm and three visible photoluminescence peaks. By comparison, KBH4 showed sufficient high reducing ability and so resulted in a rapid formation of Ag nanoparticles, largest average particle size, and highest crystallinity. In contrary, holly leaf extract leads to the slowest formation of Ag nanoparticles, smallest average particle size, and lowest crystallinity. The Ag nanoparticles prepared with the KBH4 and holly leaf extract showed the highest and lowest photocatalytic activities, respectively. The crystallinity plays a more important role in photocatalytic activity rather than average particle size. Moreover, some hydroxyls existed on the surface of the Ag nanoparticles exists, indicating a good surface hydrophilicity. Small amounts of the impurities coming from the reducing agent residues acting as a capping layer were found on the surface of the Ag nanoparticles.

scholarly journals Efficient photocatalytic degradation of dyes using photo-deposited Ag nanoparticles on ZnO structures: simple morphological control of ZnO

RSC Advances ◽  
2021 ◽  
Vol 11 (15) ◽  
pp. 8709-8717
Author(s):  
Hyeonhan Lim ◽  
Mohammad Yusuf ◽  
Sehwan Song ◽  
Sungkyun Park ◽  
Kang Hyun Park
Keyword(s):  
Photocatalytic Degradation ◽  
Hydrothermal Method ◽  
Ag Nanoparticles ◽  
Morphology Control ◽  
Morphological Control ◽  
Degradation Of Dyes

Morphology control of ZnO structures were fabricated by hydrothermal method with simple adjustments of NaOH concentration and Ag–ZnO composite showed superior photoactivity and recyclability for the degradation of MO and RhB.

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