Synthesis, structural revolutions, and optical properties of SnO2 hollow microspheres with manageable shell thickness

CrystEngComm ◽  
2021 ◽  
Author(s):  
Xin Zhang ◽  
Xueyan Jia ◽  
Zihang Shi ◽  
Bolun Song ◽  
Yongan Niu
Keyword(s):  
Optical Properties ◽  
Calcination Temperature ◽  
Shell Thickness ◽  
Hollow Microspheres ◽  
One Step ◽  
Sio2 Microspheres

SnO2 hollow (H-SnO2) microspheres were successfully prepared via a facile one-step synthesis using SiO2 microspheres as templates and NaOH as reactive etching agent. To determine the calcination temperature, the thermal...

One-step synthesis, growth mechanism, and optical properties of 3D YIO3 hollow microspheres consisting of nanotube arrays

2013 ◽  
Vol 235 ◽  
pp. 712-716 ◽  
Author(s):  
Limin Song ◽  
Shujuan Zhang ◽  
Xiaoqing Wu ◽  
Zhulin Wang ◽  
Qingwu Wei
Keyword(s):  
Optical Properties ◽  
Growth Mechanism ◽  
Hollow Microspheres ◽  
Nanotube Arrays ◽  
One Step

scholarly journals Numerical Study on the Surface Plasmon Resonance Tunability of Spherical and Non-Spherical Core-Shell Dimer Nanostructures

Nanomaterials ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 1728
Author(s):  
Joshua Fernandes ◽  
Sangmo Kang
Keyword(s):  
Refractive Index ◽  
Optical Properties ◽  
Surface Plasmon Resonance ◽  
Aspect Ratio ◽  
Surface Plasmon ◽  
Plasmon Resonance ◽  
Shell Thickness ◽  
Numerical Study ◽  
Field Enhancement ◽  
Core Shell

The near-field enhancement and localized surface plasmon resonance (LSPR) on the core-shell noble metal nanostructure surfaces are widely studied for various biomedical applications. However, the study of the optical properties of new plasmonic non-spherical nanostructures is less explored. This numerical study quantifies the optical properties of spherical and non-spherical (prolate and oblate) dimer nanostructures by introducing finite element modelling in COMSOL Multiphysics. The surface plasmon resonance peaks of gold nanostructures should be understood and controlled for use in biological applications such as photothermal therapy and drug delivery. In this study, we find that non-spherical prolate and oblate gold dimers give excellent tunability in a wide range of biological windows. The electromagnetic field enhancement and surface plasmon resonance peak can be tuned by varying the aspect ratio of non-spherical nanostructures, the refractive index of the surrounding medium, shell thickness, and the distance of separation between nanostructures. The absorption spectra exhibit considerably greater dependency on the aspect ratio and refractive index than the shell thickness and separation distance. These results may be essential for applying the spherical and non-spherical nanostructures to various absorption-based applications.

scholarly journals The influence of calcination temperature on optical properties of ZnO nanoparticles

2019 ◽  
Author(s):  
Iwan Sugihartono ◽  
Atika Retnoningtyas ◽  
Cecep Rustana ◽  
Umiatin ◽  
Nurfina Yudasari ◽  
...  
Keyword(s):  
Optical Properties ◽  
Calcination Temperature ◽  
Zno Nanoparticles

A one-step roll-to-roll process of stable AgNW/PEDOT:PSS solution using imidazole as a mild base for highly conductive and transparent films: optimizations and mechanisms

2015 ◽  
Vol 3 (22) ◽  
pp. 5859-5868 ◽  
Author(s):  
Seyul Kim ◽  
So Yeon Kim ◽  
Moon Hyun Chung ◽  
Jeonghun Kim ◽  
Jung Hyun Kim
Keyword(s):  
Optical Properties ◽  
Electrical And Optical Properties ◽  
Transparent Films ◽  
Slot Die Coating ◽  
Roll To Roll ◽  
Transparent Conducting ◽  
Slot Die ◽  
Coating Method ◽  
One Step

An AgNW/PEDOT:PSS coated, transparent, conducting, roll film (460 mm in width × 20 m in length) with good electrical and optical properties was produced using the roll-to-roll slot-die coating method.

Controlled synthesis of CeVO4 hierarchical hollow microspheres with tunable hollowness and their efficient photocatalytic activity

CrystEngComm ◽  
2018 ◽  
Vol 20 (31) ◽  
pp. 4499-4505 ◽  
Author(s):  
Jinjin Ding ◽  
Xuan Liu ◽  
Miao Wang ◽  
Quan Liu ◽  
Tongming Sun ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Hollow Microspheres ◽  
Controlled Synthesis ◽  
One Step ◽  
Hydrothermal Approach

CeVO4 hierarchical hollow microspheres assembled from nanoscaled building units (nanoparticles, nanocubes and nanoflakes) were synthesized by a one-step hydrothermal approach using l-Asp as the morphology-directing agent.

scholarly journals The influence of calcination temperature on structural and optical properties of ZnO nanoparticles via simple polymer synthesis route

2017 ◽  
Vol 49 (3) ◽  
pp. 263-275 ◽  
Author(s):  
Ibrahim Alibe ◽  
Amin Matori ◽  
Elias Saion ◽  
Alibe Ali ◽  
Mohd Zaid
Keyword(s):  
Optical Properties ◽  
Band Gap ◽  
Calcination Temperature ◽  
Wide Band ◽  
Polymer Synthesis ◽  
Structural And Optical Properties ◽  
Zno Nps ◽  
Wide Band Gap ◽  
Hexagonal Shape ◽  
Particle Size Increase

A simple polymer synthesis was used to successfully synthesized Zinc Oxide Nanoparticles (ZnO NPs), and the influence of the different calcination temperature on the structural, and optical properties of the material was observed using several techniques. The formation of ZnO NPs was confirmed by FT?IR, EDX, XRD, FESEM and TEM images upon calcination from 500?750?C. The FESEM images showed the ZNO NPs synthesized possessed a hexagonal shape and tended to become larger at higher calcination temperature. The XRD and FTIR revealed the precursor to be amorphous at room temperature but transform to a crystalline structure during the process of calcination. The crystalline and particle size increase as the temperature was increased. The crystalline size was between 24?49 nm for all samples calcined at 500?750?C. The optical properties obtained by UV?vis reflectance spectrometer have further confirmed the formation of ZnO NPs. The band gap exhibits typical ZnO wide band gap, and the values decrease with an increase in calcination temperature.

scholarly journals New palladium–oxazoline complexes: Synthesis and evaluation of the optical properties and the catalytic power during the oxidation of textile dyes

2015 ◽  
Vol 11 ◽  
pp. 1175-1186 ◽  
Author(s):  
Rym Hassani ◽  
Mahjoub Jabli ◽  
Yakdhane Kacem ◽  
Jérôme Marrot ◽  
Damien Prim ◽  
...  
Keyword(s):  
Optical Properties ◽  
Spectroscopic Analysis ◽  
Palladium Complexes ◽  
X Ray Diffraction ◽  
Factors Affecting ◽  
Enantiomerically Pure ◽  
One Step ◽  
Uv Visible ◽  
High Yields

The present paper describes the synthesis of new palladium–oxazoline complexes in one step with good to high yields (68–95%). The oxazolines were prepared from enantiomerically pure α-aminoalcohols. The structures of the synthesized palladium complexes were confirmed by NMR, FTIR, TOFMS, UV–visible spectroscopic analysis and X–ray diffraction. The optical properties of the complexes were evaluated by the determination of the gap energy values (E g) ranging between 2.34 and 3.21 eV. Their catalytic activities were tested for the degradation of Eriochrome Blue Black B (a model of azo dyes) in the presence of an ecological oxidant (H2O2). The efficiency of the decolorization has been confirmed via UV–visible spectroscopic analysis and the factors affecting the degradation phenomenon have been studied. The removal of the Eriochrome reached high yields. We have found that the complex 9 promoted 84% of color elimination within 5 min (C 0 = 30 mg/L, T = 22 °C, pH 7, H2O2 = 0.5 mL) and the energetic parameters have been also determined.

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