Regulation of surface plasmon resonance and oxygen vacancy defects in chlorine doped Bi–BiO2−x for imidacloprid photocatalytic degradation

2020 ◽  
Vol 44 (3) ◽  
pp. 1090-1096 ◽  
Author(s):  
Bin Yang ◽  
Zhiyuan Ma ◽  
Qian Li ◽  
Xinghuan Liu ◽  
Zhiqing Liu ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Oxygen Vacancy ◽  
Photocatalytic Degradation ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Solvothermal Method ◽  
Vacancy Defects ◽  
One Step ◽  
Sodium Bismuthate

In this work, chlorine doped Bi–BiO2−x (Cl–Bi–BiO2−x) was prepared by a one-step solvothermal method using sodium bismuthate (NaBiO3·2H2O) as a Bi source without the addition of a surfactant.

Large-area gold nanohole arrays fabricated by one-step method for surface plasmon resonance biochemical sensing

2018 ◽  
Vol 61 (4) ◽  
pp. 476-482 ◽  
Author(s):  
Huijie Qi ◽  
Lihong Niu ◽  
Jie Zhang ◽  
Jian Chen ◽  
Shujie Wang ◽  
...  
Keyword(s):  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Large Area ◽  
Step Method ◽  
Biochemical Sensing ◽  
Nanohole Arrays ◽  
One Step

scholarly journals Improved Morphological and Localized Surface Plasmon Resonance (LSPR) Properties of Fully Alloyed Bimetallic AgPt and Monometallic Pt NPs Via the One-Step Solid-State Dewetting (SSD) of the Ag/Pt Bilayers

2019 ◽  
Vol 14 (1) ◽  
Author(s):  
Sundar Kunwar ◽  
Puran Pandey ◽  
Sanchaya Pandit ◽  
Mao Sui ◽  
Jihoon Lee
Keyword(s):  
Surface Plasmon Resonance ◽  
Solid State ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Localized Surface Plasmon Resonance ◽  
Metallic Alloy ◽  
Localized Surface Plasmon ◽  
Alloy Formation ◽  
One Step ◽  
The One

Abstract Multi-metallic alloy nanoparticles (NPs) can offer a promising route for the integration of multi-functional elements by the adaptation of advantageous individual NP properties and thus can exhibit the multi-functional dynamic properties arisen from the electronic heterogeneity as well as configurational diversity. The integration of Pt-based metallic alloy NPs are imperative in the catalytic, sensing, and energy applications; however, it usually suffers from the difficulty in the fabrication of morphologically well-structured and elementally well-alloyed NPs, which yields poor plasmonic responses. In this work, the improved morphological and localized surface plasmon resonance (LSPR) properties of fully alloyed bimetallic AgPt and monometallic Pt NPs are demonstrated on sapphire (0001) via the one-step solid-state dewetting (SSD) of the Ag/Pt bilayers. In a sharp contrast to the previous studies of pure Pt NPs, the surface morphology of the resulting AgPt and Pt NPs in this work are significantly improved such that they possess larger size, increased interparticle gaps, and improved uniformity. The intermixing of Ag and Pt atoms, AgPt alloy formation, and concurrent sublimation of Ag atoms plays the major roles in the fabrication of bimetallic AgPt and monometallic Pt NPs along with the enhanced global diffusion and energy minimization of NP system. The fabricated AgPt and Pt NPs show much-enhanced LSPR responses as compared to the pure Pt NPs in the previous studies, and the excitation of dipolar, quadrupolar, multipolar and higher-order resonance modes is realized depending upon the size, configuration, and elemental compositions. The LSPR peaks demonstrate drastic alteration along with the evolution of AgPt and Pt NPs, i.e., the resonance peaks are shifted and enhanced by the variation of size and Ag content.

One-step synthesis of gold nanoparticles carried by boehmite

2021 ◽  
Vol 93 (4) ◽  
pp. 40402
Author(s):  
Mengyi Wang ◽  
Rongxin Sha ◽  
Ziyang Zhang ◽  
Ailiang Zou ◽  
Yuekui Xu ◽  
...  
Keyword(s):  
Gold Nanoparticles ◽  
Surface Plasmon Resonance ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Gradient Structure ◽  
Simple Method ◽  
Bilayer Films ◽  
Size Uniformity ◽  
Strong Surface ◽  
One Step

In this work, we proposed a simple method to synthesize gold nanoparticles carried by boehmite, which was made directly from Al/Au bilayer films by a one-step hydrothermal treatment. The boehmite carrier is porous with a special density-gradient structure. As a result, the embedded gold nanoparticles demonstrate good size uniformity, strong surface plasmon resonance, and good affinity for reacting solution. Such nanoparticles carried by boehmite exhibit the high potential of applications as efficient catalysts and sensitive bio-sensors.

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