Wetted-wall corona discharge induced degradation of sulfadiazine antibiotics in aqueous solution

2013 ◽  
Vol 89 (9) ◽  
pp. 1351-1359 ◽  
Author(s):  
Shaopeng Rong ◽  
Yabing Sun
2004 ◽  
Vol 54 (S3) ◽  
pp. C908-C913 ◽  
Author(s):  
P. Lukeš ◽  
M. Člupek ◽  
V. Babický ◽  
P. Šunka

2000 ◽  
Vol 78 (4) ◽  
pp. 516-519 ◽  
Author(s):  
Sefik Süzer ◽  
Ömer Dag

X-ray photoelectron spectroscopy (XPS) is used to determine the oxidation state of gold deposited from an aqueous solution of AuCl4- on to various oxidized surfaces of silicon. Although the observed Au4f signal decreased with the thickness of the oxide layer, the oxidation state of Au was determined as 0 for all the samples analyzed. From the angular dependence of the Si2p and Au4f signals it was determined that Au is deposited on top of the oxidized surfaces of metallic silicon. It is postulated that from an aqueous solution of AuCl4-, gold would deposit in its zerovalent form on to any surface due to its large and positive electrochemical reduction potential (ε°red(Au3+ /Au) = +1.50 V) and the substrate plays a role only in providing active deposition sites. To further support the proposal, it is shown that the same process takes place even in inert and hydrophobic polypropylene substrates. Similarly, it is also shown that more gold deposits if the surface of the polypropylene is made less hydrophobic (but probably more active) via the industrially used corona discharge treatment.Key words: XPS, gold, electroless deposition, oxidized silicon surface.


2015 ◽  
Vol 267 ◽  
pp. 282-288 ◽  
Author(s):  
Jinhui Zeng ◽  
Bin Yang ◽  
Xiaoping Wang ◽  
Zhongjian Li ◽  
Xingwang Zhang ◽  
...  

2004 ◽  
Vol 39 (4) ◽  
pp. 291-296 ◽  
Author(s):  
Kouji Maeda ◽  
Noriaki Sano ◽  
Akira Sonoda ◽  
Keisuke Fukui

2021 ◽  
pp. 103366
Author(s):  
Kosar Hikmat Hama Aziz ◽  
Hans Miessner ◽  
Ali Mahyar ◽  
Siegfried Mueller ◽  
Detlev Moeller ◽  
...  

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