Improving upconversion emission of NaYF4:Yb3+, Er3+ nanoparticles by coupling Au nanoparticles and photonic crystals: The detection enhancement of Rhodamine B

2019 ◽  
Vol 788 ◽  
pp. 1265-1273 ◽  
Author(s):  
Yingjin Ma ◽  
Jialun Zhu ◽  
Zhengwen Yang ◽  
Hailu Zhang ◽  
Jianbei Qiu ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Rhodamine B ◽  
Au Nanoparticles ◽  
Upconversion Emission ◽  
Detection Enhancement

Au nanoparticles embedded inverse opal photonic crystals as substrates for upconversion emission enhancement

2016 ◽  
Vol 100 (3) ◽  
pp. 988-997 ◽  
Author(s):  
Bo Shao ◽  
Zhengwen Yang ◽  
Jun Li ◽  
Jianzhi Yang ◽  
Yida Wang ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Au Nanoparticles ◽  
Upconversion Emission ◽  
Inverse Opal ◽  
Emission Enhancement

A novel photoelectrode based on eosin Y–rhodamine B duo-dye sensitized Au nanoparticles by in situ reduction

2017 ◽  
Vol 9 (38) ◽  
pp. 5586-5592 ◽  
Author(s):  
Y. L. Yuan ◽  
G. M. Pang ◽  
X. K. Li ◽  
W. Y. Zhu ◽  
H. C. Pan
Keyword(s):  
Rhodamine B ◽  
Au Nanoparticles ◽  
Specific Response ◽  
Eosin Y ◽  
In Situ Reduction ◽  
Au Nps ◽  
Dye Sensitized ◽  
Novel Strategy

A novel strategy for the fabrication of a photoelectrochemical system, involving a duo-dye sensitized Au NPs composite, that displays a specific response to mercury.

Effect of photonic bandgap on upconversion emission in YbPO_4:Er inverse opal photonic crystals

2011 ◽  
Vol 50 (3) ◽  
pp. 287 ◽  
Author(s):  
Zhengwen Yang ◽  
Kan Zhu ◽  
Zhiguo Song ◽  
Dacheng Zhou ◽  
Zhaoyi Yin ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Photonic Bandgap ◽  
Upconversion Emission ◽  
Inverse Opal

scholarly journals Preparation and Characterization of Au Nanoparticles/Polymer Composite Photonic Crystals

2008 ◽  
Vol 33 (3) ◽  
pp. 717-720
Author(s):  
Takaaki Tsuruoka ◽  
Shoji Samitsu ◽  
Tomora Aokata ◽  
Jun Matsui ◽  
Takashi Murashima ◽  
...  
Keyword(s):  
Photonic Crystals ◽  
Polymer Composite ◽  
Au Nanoparticles

scholarly journals Enhancement of Visible-Light Photocatalytic Activity of Mesoporous Au-TiO2Nanocomposites by Surface Plasmon Resonance

2012 ◽  
Vol 2012 ◽  
pp. 1-10 ◽  
Author(s):  
Minghua Zhou ◽  
Jun Zhang ◽  
Bei Cheng ◽  
Huogen Yu
Keyword(s):  
Electron Microscopy ◽  
Aqueous Solution ◽  
Photocatalytic Activity ◽  
Surface Plasmon Resonance ◽  
Visible Light ◽  
Hydroxyl Radicals ◽  
Rhodamine B ◽  
Au Nanoparticles ◽  
Photocatalytic Decolorization ◽  
Visible Light Photocatalytic

Mesoporous Au-TiO2nanocomposite plasmonic photocatalyst with visible-light photoactivity was prepared by a simple spray hydrolytic method using photoreduction technique at90∘C. The prepared samples were characterized by X-ray diffraction, scanning electron microscopy, transmission electron microscopy, and N2adsorption-desorption isotherms. The formation of hydroxyl radicals (•OH) on the surface of visible-light illuminated Au-TiO2nanocomposites was detected by the luminescence technique using terephthalic acid as probe molecules. The photocatalytic activity was evaluated by photocatalytic decolorization of Rhodamine-B (RhB) aqueous solution under visible-light irradiation (λ >  420 nm). The results revealed that the TiO2could be crystallizedviaspray hydrolysis method, and the photoreduction technique was facilitated to prepare Au nanoparticles in the mesoporous TiO2at90∘C. The light absorption, the formation rate of hydroxyl radicals, and photocatalytic decolorization of Rhodamine-B aqueous solution were significantly enhanced by those embedded Au nanoparticles in the Au-TiO2nanocomposites. The prepared Au-TiO2nanocomposites exhibit a highly visible-light photocatalytic activity for photocatalytic degradation of RhB in water, and their photocatalytic activity is higher than that of the pristine TiO2nanoparticles due to the surface plasmon resonance.

scholarly journals Facile synthesis of silver/gold alloy nanoparticles for ultra-sensitive rhodamine B detection

RSC Advances ◽  
2021 ◽  
Vol 11 (35) ◽  
pp. 21475-21488
Author(s):  
Thi Thu Ha Pham ◽  
Nguyen Dac Dien ◽  
Xuan Hoa Vu
Keyword(s):  
Rhodamine B ◽  
Au Nanoparticles ◽  
Gold Alloy ◽  
Alloy Nanoparticles ◽  
Facile Synthesis ◽  
Long Time

The synthesis of Ag/Au nanoparticles (NPs) in a controlled manner has been a challenge for a long time.

Sign in / Sign up

Export Citation Format

Share Document