Ag particles

In this paper, we report a simple and fast method to produce uniform nano-sized Ag particles that can be dispersed in the oil phase by using oleic acid as solvent and capping agent. Oleylamine, a longchain amine that can act as an electron donor at elevated temperatures and is miscible with oleic acid, was selected as a reductant.

6p viambani 18-06-2024 1 1   Download

Three kinds of CueAg composite paste were fabricated. We used 10 mm Cu particles as the main component of the paste as they are significantly cheaper than Ag and Cu nanoparticles. To understand the bonding performance and mechanism, the flake-shape CueAg pastes with a different solvent and a Cu spherical particle with a diameter of 10 mm were separately implemented for the bare Cu bonding.

12p viberbers 09-08-2023 5 3   Download

This work reports the surface modification of polyacrylonitrile (PAN) fibers by graft copolymerization to ensure the decoration of homogenous and dense Ag nanoparticles. Two facile and subsequent modification processes resulted in a PAN fiber composite with an intact fibrous structure, sufficiently conductive for antistatic application and antibacterial activity. In the first step, some chemically attractive monomers and monomer mixtures, such as acrylic acid (AA), AA-itaconic acid (AA-IA), AA-acrylamide (AA-AAm), were introduced to the fiber surface by grafting.

15p lyhuyenthu 31-01-2023 6 2   Download

In this study, we investigated the formation and influence of Ag particles on the physical properties and photocatalytic performance of Ag3PO4 photocatalysts when Ag particles adhered to the Ag3PO4 surface. The material is prepared by a simple precipitation method with illumination.

8p vimaryamnawaz 04-08-2022 6 1   Download

Zinc oxide (ZnO), Silver (Ag), Copper oxide (CuO) and Titanium oxide (TiO2) nanoparticles were synthesised using simple chemical route which were characterised using Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Particle Size Analyzer and Raman Spectroscopy.

11p trinhthamhodang1218 26-02-2021 10 2   Download

In this study, AgNPs are synthesized with the chemical reduction method. Ag+ is reduced by dextran. The size and shape of particles are studied by varying the temperature, time, and initial pH of the reaction. The antimicrobial activities of AgNPs/dextran are tested against X. oryae and P. oryzae.

7p nguaconbaynhay10 20-02-2021 4 1   Download

The Monte Carlo N-Particle code (MCNP4C2 version) has been modified for atomic relaxation in both source code and library to simulate XRF spectra for different measurement configurations. The modified code was then used to simulate XRF spectra of six metal samples: Ni, Cu, Zn, Pd, Ag, Au, and Au alloys on an XRF spectrometer. The results are compared to those of experimental measurements.

12p nguaconbaynhay10 19-02-2021 7 2   Download

In this work, silver nanocatalyst loaded on vanadium phosphorus oxide (Ag/VPO) for oxidation of styrene to benzaldehyde was synthesized by method including impregnating of VPO substrate with colloid solution of Ag nanoparticles (NPs). VPO substrate was prepared by microwave-assisted reaction of vanadium and phosphorus precursors. Meanwhile, Ag/PVP NPs with the size of 7.5 nm and spherical shape, determined by transmission electron microscopy (TEM), were prepared in solution using NaBH4 as reducing agent and polyvinylpyrrolidone (PVP) as protecting agent.

9p cothumenhmong9 04-01-2021 14 1   Download

A versatile technique was implemented for the synthesis of silver nanoparticle using aqueous extract of leaves of Gymnema sylvestre. The reduction of silver nitrate to silver nanoparticle was confirmed by UV-Vis spectrophotometer showing a typical resonance (SPR) at about 390nm which is specific for ag NPs. In FT-IR analysis the strong band peak at 3355cm-1 in aqueous extract is vibration bands, which may be due to overlapping of amine N- H stretching bands.

11p chauchaungayxua6 26-06-2020 20 0   Download

Zinc oxide (ZnO), Silver (Ag), Copper oxide (CuO) and Titanium oxide (TiO2) nanoparticles were synthesised using simple chemical route which were characterised using Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Particle Size Analyzer and Raman Spectroscopy. Size of Zinc oxide (ZnO), Silver (Ag) Copper oxide (CuO) and Titanium dioxide (TiO2) nanoparticles measured 16-50 nm, 50- 100 nm, 60-150 nm and 100-120, respectively to conform the nano-size.

8p gaocaolon5 14-06-2020 10 1   Download

Zinc oxide (ZnO), Silver (Ag), nanoparticles were synthesised using simple chemical route which were characterised using Scanning Electron Microscope (SEM), Transmission Electron Microscope (TEM), Particle Size Analyzer and Raman Spectroscopy. Size of Zinc oxide (ZnO), Silver (Ag) Copper oxide nanoparticles measured 16-50 nm, 50-100 nm, respectively to conform the nano-size. Onion seeds when dry dressed with the synthesised nanoparticles each at 750, 1000, 1250 and 1500 mg kg-1, the dose of 1000 mg kg-1 outperformed in enhancing the germination (72%), shoot length (7.5 cm) root length (6.

9p gaocaolon5 14-06-2020 7 1   Download

Nanotechnology, an attractive branch of science deals with smaller particles with incredible efficiency. The applications of nanoparticles were widely distributed in all fields of science to enhance the reaction with ease. Despite of chemical and physical method of synthesis, biological methods has gained importance due to its less toxicity and cost efficiency. In the present study, silver nanoparticles (Ag NP’s) were synthesized using the culture supernatant of AcinetobacterindicusVLE-1 isolated from paper mill effluent.

13p caygaocaolon2 14-03-2020 13 0   Download

A green and simple approach has been successfully developed to synthesize chitosan/Ag nanocomposites using kumquat extract as a biological reducing agent. It indicates to be an ecofriendly and green method for the synthesis providing a cost effective and an efficient route for the chitosan/Ag nanocomposites’ synthesis. The prepared chitosan/Ag nanocomposites have been characterized by UV-vis, TEM, FTIR, and XRD. Result showed those chitosan/Ag nanocomposites have been obtained with average particle size ~15-25 nm.

10p abcxyz123_02 03-03-2020 23 0   Download

Nanotechnology is considered as an emerging technology due to the possibility to advance well-established products and to create new products with totally new characteristics. Biosynthesised silver nanoparticles (Ag NPs) using A. aspera roots and standard Ag NPs were characterized by zetasizer, UV-Visible spectrophotometer and scanning electron microscope (SEM). Efficacy of biosynthesised and standard Ag NPs was attributed on quality parameters of Groundnut seed. The average particle size of Ag NPs was 50.37 nm (Standard) and 23.21 nm (Biosynthesized).

13p caygaocaolon3 09-03-2020 11 0   Download

Now a day’s nanotechnology has become one of the most promising approaches in pest management. Nanoparticles represent a new generation of environmental remediation technologies that provide cost–effective solution to some of the most challenging insect pests. S.litura (F.) (Lepidoptera: Noctuidae) is a major polyphagous pest of field crops and vegetables, causing severe damage to the plants in all phenological crop stages.

9p caygaocaolon3 27-02-2020 13 0   Download

In this paper, we fabricated Ni and Fe doped TiO2 thin film with different doping percentages and fabricated Ag coated on Ni and Fe doped TiO2 thin film with different doping percentages via the hydrothermal method.

11p vigustavia2711 19-12-2019 8 1   Download

This paper reports an investigation of the microwave-assisted synthesis of silver nanoparticles (Ag NPs) using extract of stinky bean (Parkia speciosa Hassk) pods (BP). The formation of Ag NPs was identified by instrumental analysis consists of UV–vis spectrophotometry, Fourier-transform infrared (FTIR) spectrophotometry, scanning electron microscopy (SEM), transmission electron microscopy (TEM) and particle size analysis. Furthermore, Ag NPs were used as antibacterial agents against Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa.

9p kequaidan1 16-11-2019 15 0   Download

The TiO2 nanotubes were fabricated by the hydrothermal method. Then, Ag nanoparticles with the varying ratio were attached on the TiO2 nanotubes by photoreduction. The characteristics of structure, morphology, chemical composition and of TiO2 nanotubes modified Ag (Ag-TNTs) was investigated by X-ray diffraction (XRD) and transmission electron microscopy (TEM), energy dispersive X-ray (EDX) and the absorption spectral of Methylene blue (MB) solution. The results showed that Ag-TNTs have fairly uniform length with Ag particles immobilized on the tube.

8p cumeo3000 01-08-2018 41 0   Download

Đề tài nghiên cứu tổng hợp chế phẩm phối hợp AgNP (Ag Nano Particles) – WSC (Water Soluble Chitosan) có hoạt tính kháng khuẩn tốt, ổn định, thân thiện với môi trường, ứng dụng trong bảo quản các loại quả sau thu hoạch nhằm gia tăng thời gian bảo quản, nâng cao thu nhập cho người dân, phục vụ phát triển nông nghiệp bền vững.

26p bautroibinhyen24 20-04-2017 173 25   Download