Visible light‐excited surface plasmon resonance charge transfer significantly improves the photocatalytic activities of ZnO semiconductor for pollutants degradation

2020 ◽  
Vol 67 (9) ◽  
pp. 1611-1617
Author(s):  
Humaira Yasmeen ◽  
Amir Zada ◽  
Sharafat Ali ◽  
Imran Khan ◽  
Wajid Ali ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Charge Transfer ◽  
Visible Light ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Photocatalytic Activities ◽  
Resonance Charge ◽  
Zno Semiconductor

scholarly journals The production of an efficient visible light photocatalyst for CO oxidation through the surface plasmonic effect of Ag nanoparticles on SiO2@α-Fe2O3 nanocomposites

RSC Advances ◽  
2018 ◽  
Vol 8 (23) ◽  
pp. 12547-12555 ◽  
Author(s):  
Kasimayan Uma ◽  
Shih-Wen Chen ◽  
Nadarajan Arjun ◽  
Guan-Ting Pan ◽  
Thomas C.-K. Yang
Keyword(s):  
Surface Plasmon Resonance ◽  
Visible Light ◽  
Co Oxidation ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Ag Nanoparticles ◽  
Systematic Investigation ◽  
Plasmonic Effect ◽  
Visible Light Photocatalyst

We present a systematic investigation of CO oxidation and surface plasmon resonance on SiO2@α-Fe2O3 nanocomposite spheres with different weight percentages of Ag nanoparticles.

Influence of dimensionality and crystallization on visible-light hydrogen production of Au@TiO2 core–shell photocatalysts based on localized surface plasmon resonance

2018 ◽  
Vol 8 (4) ◽  
pp. 1094-1103 ◽  
Author(s):  
Bing Liu ◽  
Yan Jiang ◽  
Yin Wang ◽  
Shuxia Shang ◽  
Yuanman Ni ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Surface Plasmon Resonance ◽  
Hydrogen Production ◽  
Visible Light ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Localized Surface Plasmon ◽  
Core Shell

We synthesized four Au@TiO2 nanostructures, which exhibit dimensionality- and crystallinity-dependent photocatalytic activity towards H2 generation.

scholarly journals Palladium nanoparticles anchored to anatase TiO2 for enhanced surface plasmon resonance-stimulated, visible-light-driven photocatalytic activity

2015 ◽  
Vol 6 ◽  
pp. 428-437 ◽  
Author(s):  
Kah Hon Leong ◽  
Hong Ye Chu ◽  
Shaliza Ibrahim ◽  
Pichiah Saravanan
Keyword(s):  
Electron Microscopy ◽  
Photocatalytic Activity ◽  
Surface Plasmon Resonance ◽  
Visible Light ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Palladium Nanoparticles ◽  
Noble Metals ◽  
Visible Region ◽  
Bet Surface Area

Freely assembled palladium nanoparticles (Pd NPs) on titania (TiO2) nano photocatalysts were successfully synthesized through a photodeposition method using natural sunlight. This synthesized heterogeneous photocatalyst (Pd/TiO2) was characterized through field emission scanning electron microscopy (FESEM), high resolution transmission electron microscopy (HRTEM), X-ray diffraction (XRD), BET surface area, UV–vis diffuse reflectance spectra (UV-DRS), Raman and photoluminescence (PL) analyses. The simple and smart synthesis anchored well the deposition with controlled Pd NPs size ranging between 17 and 29 nm onto the surface of TiO2. Thus, it gives the characteristic for Pd NPs to absorb light in the visible region obtained through localized surface plasmon resonance (LSPRs). Apparently, the photocatalytic activity of the prepared photocatalysts was evaluated by degrading the endocrine disrupting compound (EDC) amoxicillin (AMX) excited under an artificial visible light source. In the preliminary run, almost complete degradation (97.5%) was achieved in 5 h with 0.5 wt % Pd loading and the degradation followed pseudo-first-order kinetics. The reusability trend proved the photostability of the prepared photocatalysts. Hence, the study provides a new insight about the modification of TiO2 with noble metals in order to enhance the absorption in the visible-light region for superior photocatalytic performance.

scholarly journals Mechanism of hydrogen adsorption on gold nanoparticles and charge transfer probed by anisotropic surface plasmon resonance

2017 ◽  
Vol 19 (40) ◽  
pp. 27397-27405 ◽  
Author(s):  
William L. Watkins ◽  
Yves Borensztein
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Charge Transfer ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Negative Charge ◽  
Hydrogen Adsorption ◽  
Anisotropic Surface

The adsorption of dihydrogen on gold nanoparticles is observed by a shift in the surface plasmon resonance of gold, during argon/hydrogen cycles. This is induced by the dissociation of the H2 molecules and negative charge transfer from Au to Au–H bondings.

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