Colorimetric detection of Ag ions with graphene oxide in dimethylformamide

2014 ◽  
Vol 38 (2) ◽  
pp. 503-506 ◽  
Author(s):  
XiaoLiang Li ◽  
Yong Wu He ◽  
Jae Sung Ryu ◽  
Sung Ik Yang
Keyword(s):  
Graphene Oxide ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Ag Nanoparticles ◽  
Colorimetric Detection ◽  
Resonance Absorption ◽  
Surface Plasmon Resonance Absorption

We report on the selective and sensitive colorimetric detection of Ag+ in a dimethylformamide (DMF) solution in the presence of graphene oxide based on the surface plasmon resonance absorption of Ag nanoparticles (NPs).

Photocatalytic Water Splitting over Ag/TiO2 Nano-Wire Films

2014 ◽  
Vol 665 ◽  
pp. 288-291 ◽  
Author(s):  
Yang Hu ◽  
Chao Pan ◽  
Cai Xia Gao ◽  
Jun Fan ◽  
En Zhou Liu
Keyword(s):  
Surface Plasmon Resonance ◽  
Water Splitting ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Ag Nanoparticles ◽  
Chemical Reduction ◽  
Reduction Process ◽  
Resonance Absorption ◽  
Absorption Properties ◽  
Surface Plasmon Resonance Absorption

Plasmonic Ag decorated TiO2 nano-wire film was firstly prepared by the combination of a hydrothermal method and a microwave-assisted chemical reduction process. The results show that Ag deposited TiO2 film exhibits obvious visible light absorption due to surface plasmon resonance absorption of Ag nanoparticles. Besides, fluorescence quenching is observed in the composite film under the excitation of 250 nm. Photocatalytic tests show that Ag deposited TiO2 exhibits enhanced photocatalytic activity for H2 production by water splitting due to the synergistic effect between charge transfer and surface plasmon resonance absorption properties of Ag nanoparticles.

A Hydride Generation-Nanosilver Surface Plasmon Resonance Absorption Spectral Method for the Determination of Trace Se(IV)

2013 ◽  
Vol 749 ◽  
pp. 491-494
Author(s):  
Ai Hui Liang ◽  
Qing Ye Liu ◽  
Gui Qing Wen ◽  
Ting Sheng Li ◽  
Zhi Liang Jiang
Keyword(s):  
Surface Plasmon Resonance ◽  
Detection Limit ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Water Samples ◽  
Hydride Generation ◽  
Resonance Absorption ◽  
Surface Plasmon Resonance Absorption ◽  
Hcl Solution

In HCl solution, the Se (IV) was reduced to SeH2 by NaBH4, and absorbed by solution of ethanol-AgNO3. The Ag+ was reduced to nanosilver that exhibited surface plasmon resonance absorption (SPR) peaks at 292 nm and 420 nm. Under the selected conditions, the value at 292 nm was linear to the concentration of Se (IV) in the range of 0.08-2.0 μg/mL, a detection limit of 0.04 μg/mL. The proposed method was applied to detect Se (IV) in water samples, with satisfactory results.

SURFACE PLASMON RESONANCE ABSORPTION OF ALBUMIN/WATER ON Ni THIN FILM DEPOSITED ON Si AT 230°C

2008 ◽  
Vol 20 (06) ◽  
pp. 393-400
Author(s):  
Y.-L. Yang ◽  
T.-F. Young ◽  
W.-C. Kuo ◽  
S.-H. Fang ◽  
Y.-K. Chao
Keyword(s):  
Thin Film ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Grazing Angle ◽  
Rf Sputtering ◽  
Resonance Absorption ◽  
High Activation ◽  
Experimental Conditions ◽  
Surface Plasmon Resonance Absorption

In this work we have studied the surface plasmon resonance (SPR) absorption of Albumin on NiSi nanoparticle thin film deposited on Si. The thin films were deposited by means of RF sputtering on Si at various temperatures and times for different thicknesses, and characterized by grazing angle XRD and SEM. From these experimental conditions, we only observed a formation of NiSi nanoparticles deposited on Si at 230°C for 15 min to 30 min. The silicon atoms seem to emerge out of the surface and react with Nickel's. Due to the high activation energy, this mechanism would not take place at lower temperatures, such as RT and 122°C. Mixture of Albumin and water with varied concentrations has been prepared for the measurement of SPR absorption on the NiSi nanoparticle thin film. We found the spectra of SPR absorption of Albumin on the sample, which NiSi nanoparticle thin film was deposited on Si at 230°C, exhibits a specific shift due to the formation of NiSi nanoparticle.

Thermal Stability of Surface Plasmon Resonance Absorption in а-С:Н〈Ag + TiО2〉 Nanocomposite Films

2018 ◽  
Vol 125 (6) ◽  
pp. 864-869
Author(s):  
O. Yu. Prikhod’ko ◽  
S. L. Mikhailova ◽  
E. S. Mukhametkarimov ◽  
K. Dautkhan ◽  
S. Ya. Maksimova ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Resonance Absorption ◽  
Nanocomposite Films ◽  
Surface Plasmon Resonance Absorption ◽  
Thermal Stability Of
Sign in / Sign up

Export Citation Format

Share Document