scholarly journals Determination of 4-nitrophenol in Water using Free-Standing Cu Nanowire Electrode

Author(s):  
Xiaoping Zhang ◽  
Keyword(s):  
1993 ◽  
Vol 9 (1) ◽  
pp. 52-66 ◽  
Author(s):  
Pieter Geldermans ◽  
Claudius Feger
Keyword(s):  

1995 ◽  
Vol 416 ◽  
Author(s):  
F. Golshani ◽  
W. H. Miller ◽  
M. A. Prelas ◽  
T. Sung ◽  
G. Popovici ◽  
...  

ABSTRACTThe hydrogen content of free-standing polycrystalline CVD diamond samples was determined by Fourier Transform Infrared (FTIR) measurements and was quantified by a notched neutron spectrum technique. The latter measures the total bonded and unbonded hydrogen. The concentration of total hydrogen in these samples was of the same order of magnitude. The FTIR measurements, which are sensitive to the bonded hydrogen, indicated different hydrogen to diamond peak ratios.


2014 ◽  
Author(s):  
Zhi Li ◽  
Sai Gao ◽  
Helmut Wolff ◽  
Uwe Brand ◽  
Ludger Koenders

Polymers ◽  
2020 ◽  
Vol 12 (5) ◽  
pp. 996 ◽  
Author(s):  
Suset Barroso-Solares ◽  
Paula Cimavilla-Roman ◽  
Miguel Angel Rodriguez-Perez ◽  
Javier Pinto

The use of polymeric nanocomposites has arisen as a promising solution to take advantage of the properties of nanoparticles (NPs) in diverse applications (e.g., water treatment, catalysis), while overcoming the drawbacks of free-standing nanoparticles (e.g., aggregation or accidental release). In most of the cases, the amount and size of the NPs will affect the stability of the composite as well as their performance. Therefore, a detailed characterization of the NPs present on the nanocomposites, including their quantification, is of vital importance for the optimization of these systems. However, the determination of the NPs load is often carried out by destructive techniques such as TGA or ICP-OES, the development of non-invasive approaches to that aim being necessary. In this work, the amount of silver NPs synthesized directly on the surface of melamine (ME) foams is studied using two non-invasive approaches: colorimetry and X-ray radiography. The obtained results show that the amount of silver NPs can be successfully determined from the luminosity and global color changes of the surface of the foams, as well as from the X-ray attenuance.


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