The invention relates to method for in situ monitoring visible photocatalysis and organic dye degradation based on superficially reinforced Raman spectra technology With Cu2O micro-nano particle in the shape of polyhedron as template, nano-Ag particles are modified on the surface to get Cu2O/Ag ...
The confined electromagnetic fields, local heat generation and efficient hot carrier excitation, that accompany plasmon resonances afford several advantages for photocatalysis. For example, the strong electromagnetic fields at the surface of plasmonic nanoparticles enhance the photon flux and can promote photo...
Energy band structures. As generally known, the light absorption properties of 2D nanomaterials for photocatalysis are largely dependent on energy band structures [100], where photoinduced related discussions will be analyzed in the next subsection for the specificity in strategies of 2D nanomaterial-base...
We first investigated the surface state of gas-sensing materials at varied temperatures by in-situ Raman. As shown in Fig. 4a and b, the peaks corresponding to lattice vibration (A1g and B2g) weaken gradually, while the peaks related to surface oxygen vacancies enhance gradually with the ...
Raman spectra of as-made materials were measured by using HORIBA France, LABRAM HR Evolution. In situ Raman spectroscopy analysis was carried out on a confocal Raman spectrometer with a wavelength of 532 nm. Nitrogen temperature programmed desorption (N2-TPD) and carbon dioxide temperature ...
A 3D electrode was successfully prepared by in-situ growing nanocrystalline TiO2 film on carbonized eggshell membrane, which favors continuous electron transport and electrolyte penetration along with Li+ ion diffusion in the whole electrode, leading to a superior lithium storage performance. Download: Do...
The μRaman spectra were taken for FeCrAl plates due to the optical microscope limitations. The effectiveness and stability of the prepared structured metal organic framework materials was determined in two ways. The effectiveness of MOF-74 in situ deposition was determined by weighing the washed and...
In situ electrochemical SERS observation suggested that the molecule experienced a transition state of the adsorption because of the electrochemical hydrogen evolution reaction occurred about -0.1 V vs SCE. 展开 关键词: Semiconductor nanocrystals Photocatalysis Methylviologen Zinc oxide Cadmium-zinc sulfide ...
In situ spectroelectrochemical techniques11,12,13, such as X-ray absorption/diffraction/scattering spectroscopy14,15, infrared and Raman spectroscopy16, mass spectrometry17,18, and nuclear magnetic resonance19, are powerful tools for identifying accessible catalytic active sites, adsorbed intermediates, ...
Whilst we have focussed on mapping the influence of structural defects on (photo)catalytic activity, the above methods can also be used to examine the role of chemical impurities. In Supplementary Note13we examine the influence of native carbon containing impurities on hematite photocatalysis. We fin...