Effects of nanoparticle size and morphology on IR diffuse reflection spectra

2003 ◽  
Vol 18 (4) ◽  
pp. 18-20 ◽  
Author(s):  
Kong Xiao-dong ◽  
Zhu Mei-wu ◽  
Zheng Jia-sheng
Keyword(s):  
Diffuse Reflection ◽  
Nanoparticle Size ◽  
Reflection Spectra ◽  
Size And Morphology

scholarly journals Rapid hot-injection as a tool for control of magnetic nanoparticle size and morphology

RSC Advances ◽  
2021 ◽  
Vol 11 (34) ◽  
pp. 20708-20719
Author(s):  
Magdalena Kulpa-Greszta ◽  
Anna Tomaszewska ◽  
Andrzej Dziedzic ◽  
Robert Pązik
Keyword(s):  
Particle Shape ◽  
Magnetic Nanoparticle ◽  
Magnetic Particle ◽  
Nanoparticle Size ◽  
Precise Control ◽  
Hot Injection ◽  
Size And Morphology

Rapid hot-injection can be used for precise control of magnetic particle shape.

Preparation of Visible-Light-Responsive TiO2-xNx Photocatalyst by a Very Simple Method

2011 ◽  
Vol 383-390 ◽  
pp. 3188-3191
Author(s):  
Han Jie Huang ◽  
Wen Long She ◽  
Ling Wen Yang ◽  
Hai Peng Huang
Keyword(s):  
Photocatalytic Activity ◽  
Visible Light ◽  
Photoelectron Spectroscopy ◽  
Diffuse Reflection ◽  
Ammonia Solution ◽  
Reflection Spectra ◽  
X Ray Diffraction ◽  
Simple Method ◽  
X Ray ◽  
Light Excitation

A visible-light-responsive TiO2-xNx photocatalyst was prepared by a very simple method. Ammonia solution was used as nitrogen resource in this paper. The TiO2-xNx photocatalyst was characterized by X-ray diffraction (XRD), Brunauer-Emmett-Teller (BET), UV-Vis diffuse reflection spectra (DRS), and X-ray photoelectron spectroscopy (XPS). The ethylene was selected as a target pollutant under visible light excitation to evaluate the activity of this photocatalyst. The new prepared TiO2-xNx photocatalyst with strong photocatalytic activity under visible light irradiation was demonstrated in the experiment.

Device for determining the diffuse-reflection spectra of various kinds of wood

2007 ◽  
Vol 74 (5) ◽  
pp. 351
Author(s):  
V. A. Anchukov ◽  
Yu. V. Ilyasov ◽  
G. G. Gorbunov ◽  
S. S. Gulidov ◽  
A. P. Lappo ◽  
...  
Keyword(s):  
Diffuse Reflection ◽  
Reflection Spectra

Nanoparticle size and morphology control using ultrafast laser induced forward transfer of Ni thin films

2013 ◽  
Vol 103 (9) ◽  
pp. 093113 ◽  
Author(s):  
Ryan D. Murphy ◽  
Michael J. Abere ◽  
Keegan J. Schrider ◽  
Ben Torralva ◽  
Steven M. Yalisove
Keyword(s):  
Thin Films ◽  
Morphology Control ◽  
Ultrafast Laser ◽  
Nanoparticle Size ◽  
Forward Transfer ◽  
Size And Morphology ◽  
Size And Morphology Control

Trace oxygen effects on copper nanoparticle size and morphology

1996 ◽  
Vol 68 (3) ◽  
pp. 343-345 ◽  
Author(s):  
D. L. Olynick ◽  
J. M. Gibson ◽  
R. S. Averback
Keyword(s):  
Nanoparticle Size ◽  
Copper Nanoparticle ◽  
Oxygen Effects ◽  
Size And Morphology

Effects of Sample Dilution and Particle Size/Morphology on Diffuse Reflection Spectra of Carbohydrate Systems in the Near- and Mid-Infrared. Part II: Durum Wheat

1993 ◽  
Vol 47 (6) ◽  
pp. 695-701 ◽  
Author(s):  
Jill M. Olinger ◽  
Peter R. Griffiths
Keyword(s):  
Particle Size ◽  
Durum Wheat ◽  
Near Infrared ◽  
Diffuse Reflection ◽  
Specular Reflection ◽  
Analytical Data ◽  
Reflection Spectra ◽  
Depth Of Penetration ◽  
Mid Infrared ◽  
Effective Depth

It is shown that reduction of particle size for ground durum wheat does not cause a concomitant decrease in the amount of specular reflection observed in the mid-infrared spectrum of the neat sample. Specular reflection can be reduced, but not completely eliminated, by dilution of the wheat in a nonabsorbing matrix such as KCl. The lack of dependence of mid-infrared diffuse reflection spectra of neat ground durum wheat on particle size is explained by the morphology of the surface of each particle and the low effective depth of penetration of mid-infrared radiation into particles of very high absorptivity. It is concluded that mid-infrared diffuse reflection spectra of wheats do not provide information characteristic of the overall composition of the wheat when the particle size exceeds a few micrometers, but that near-infrared diffuse reflection spectra will provide representative analytical data even when the particle size is large.

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