Ozone Initiated Ni/Metal Oxide Catalyzed Conversion of 1,2-Dichlorobenzene to Mucochloric Acid in Aqueous Solutions

2012 ◽  
Vol 51 (7) ◽  
pp. 2864-2873 ◽  
Author(s):  
Estelle C. Chetty ◽  
S. Maddila ◽  
C. Southway ◽  
S. B. Jonnalagadda
Keyword(s):  
Metal Oxide ◽  
Aqueous Solutions ◽  
Mucochloric Acid

Electrochemical effects on friction between metal oxide surfaces in aqueous solutions

1993 ◽  
Vol 89 (2) ◽  
pp. 267 ◽  
Author(s):  
Geoff. H. Kelsall ◽  
Yingyang Zhu ◽  
Hugh A. Spikes
Keyword(s):  
Metal Oxide ◽  
Aqueous Solutions ◽  
Oxide Surfaces ◽  
Metal Oxide Surfaces

Metal oxide solubility behavior in high temperature aqueous solutions

1992 ◽  
Vol 21 (8) ◽  
pp. 745-760 ◽  
Author(s):  
S. E. Ziemniak
Keyword(s):  
High Temperature ◽  
Metal Oxide ◽  
Aqueous Solutions ◽  
Solubility Behavior ◽  
Oxide Solubility ◽  
Metal Oxide Solubility

scholarly journals Polyoxometallates as effective photocatalysts in water purification from pesticides

2004 ◽  
Vol 6 (4) ◽  
pp. 227-231 ◽  
Author(s):  
E. Gkika ◽  
P. Kormali ◽  
S. Antonaraki ◽  
D. Dimoticali ◽  
E. Papaconstantinou ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Metal Oxide ◽  
Aqueous Solutions ◽  
Organic Pollutants ◽  
Water Purification ◽  
Inorganic Anions ◽  
Degradation Mechanisms ◽  
Metal Oxide Clusters

Polyoxometallates (POM), i.e., metal oxide clusters of mainly tungsten are effective homogeneous photocatalysts for the mineralization of organic pollutants. POM are, at least, as effective as the well studiedTiO2.OH⋅radicals formed by the reaction of the photo-excited polyoxometallates withH2O, appear to play a key role in the process. In this study, the photocatalytic activity of POM have been tested on some diversified pesticides of interest such as lindane, bentazone and fenitrothion to determine the feasibility of decontamination of aqueous solutions from these pollutants. The results show that aqueous solutions containing the above pesticides, upon photolysis in the presence of polyoxotungstates undergo effective degradation toCO2,H2Oand the corresponding inorganic anions. The intermediates identified give rise to complicated degradation mechanisms prior to mineralization. The characteristic reactions that take place consist of hydroxylation, H-abstraction, dehalogenation, denitration, desulfurization, breaking of the C-C bond etc.

Preparation of metal oxide thin films from organic-additive-free aqueous solutions by low-speed dip-coating

RSC Advances ◽  
2015 ◽  
Vol 5 (26) ◽  
pp. 20371-20375 ◽  
Author(s):  
H. Uchiyama ◽  
T. Ito ◽  
R. Sasaki ◽  
H. Kozuka
Keyword(s):  
Thin Films ◽  
Heat Treatment ◽  
Metal Oxide ◽  
Aqueous Solutions ◽  
Dip Coating ◽  
Organic Additive ◽  
Oxide Thin Films ◽  
Metal Oxide Thin Films ◽  
Low Speed

Transparent, crack-free SnO2 and TiO2 precursor films were obtained from organic-additive-free aqueous solutions by low-speed dip-coating. The precursor films were crystallized to SnO2 and TiO2 by the heat treatment at 700 °C for 10 min in air.

scholarly journals Magnetic metal oxide-organic framework material for ultrasonic-assisted sorption of titan yellow and rose bengal from aqueous solutions

2020 ◽  
Vol 392 ◽  
pp. 123635 ◽  
Author(s):  
Khalid Z. Elwakeel ◽  
Ahmed Shahat ◽  
Ziya A. Khan ◽  
Wael Alshitari ◽  
Eric Guibal
Keyword(s):  
Metal Oxide ◽  
Aqueous Solutions ◽  
Rose Bengal ◽  
Titan Yellow ◽  
Magnetic Metal ◽  
Ultrasonic Assisted ◽  
Organic Framework
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