UV−Visible Diffuse Reflectance Spectroscopy of Zeolite-Hosted Mononuclear Titanium Oxide Species

1997 ◽  
Vol 101 (8) ◽  
pp. 1305-1311 ◽  
Author(s):  
Joachim Klaas ◽  
Günter Schulz-Ekloff ◽  
Nils I. Jaeger
Keyword(s):  
Titanium Oxide ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Uv Visible

UV–visible diffuse reflectance spectroscopy used in analysis of lignocellulosic biomass material

2020 ◽  
Vol 54 (4) ◽  
pp. 837-846
Author(s):  
Hui Zhang ◽  
Xinping Wang ◽  
Jun Wang ◽  
Qiuyan Chen ◽  
Hai Huang ◽  
...  
Keyword(s):  
Lignocellulosic Biomass ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Uv Visible

scholarly journals Detecting the NIR Fingerprint of Colors: The Characteristic Response of Modern Blue Pigments

Heritage ◽  
2019 ◽  
Vol 2 (3) ◽  
pp. 2255-2261 ◽  
Author(s):  
Yivlialin ◽  
Galli ◽  
Raimondo ◽  
Martini ◽  
Sassella
Keyword(s):  
Diffuse Reflectance ◽  
Near Infrared ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Composite Sample ◽  
Model Composite ◽  
Non Invasive ◽  
Uv Visible ◽  
Invasive Techniques

Reflectance spectroscopy in the ultraviolet (UV), visible (Vis), and near infrared (NIR) range is widely applied to art studies for the characterization of paints and pigments, with the advantages of non-invasive techniques. Isolating and detecting the fingerprint of pigments, especially in the NIR range, is quite challenging, since the presence of vibrational transitions of the most common organic functional groups prevents to relate the optical spectrum of a composite sample, as an artwork is, to each one of its elements (i.e., support, binder, and specific pigment). In this work, a method is presented to obtain the UV-Vis-NIR optical response of the single components of a model composite sample reproducing an artwork, i.e., the support, the binder, and the pigment or dye, by using diffuse reflectance spectroscopy. This allowed us to obtain the NIR spectral fingerprint of blue pigments and to identify specific features possibly applicable for detecting cobalt and phthalocyanine blue colors in artwork analysis.

Preparation of Nanoparticulate YFeO3 by Microwave Method and its Load

2013 ◽  
Vol 575-576 ◽  
pp. 41-44
Author(s):  
Pei Song Tang ◽  
Ling Xiang Jia ◽  
Jun Yue Zhu ◽  
Zhen Jiang ◽  
Ting Ting Lin ◽  
...  
Keyword(s):  
Diffuse Reflectance ◽  
Optical Band Gap ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
Raw Material ◽  
Microwave Method ◽  
X Ray Diffraction ◽  
X Ray ◽  
Uv Visible ◽  
Microwave Process

Using Fe (NO3)39H2O, Y(NO3)36H2O and polyvinyl alcohol as the main raw material, the YFeO3 nanoparticles were prepared by a microwave process. The YFeO3 nanoparticles were characterized by powder X-ray diffraction (XRD), scanning electron microscopy (SEM) and UV-visible diffuse reflectance spectroscopy (DRS). The results show that the perovskite structureYFeO3 can be obtained, and the resulting product has a particle size of 70 nm and an optical band gap of 2.4 eV. The recovery of YFeO3 photocatalysts was performed by the photocatalytic experiment of load YFeO3. It is found that YFeO3 nanocrystalline photocatalysts can be efficiently recovered by magnetic polymer film load.

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