Output list
1–5 of 5 results
Book chapter
Removal of arsenic by red mud from contaminated waste water
Published 2013
Electrometallurgy and Environmental Hydrometallurgy, 1951 - 1957
No abstract available
Book chapter
Removal of arsenic from drinking water by precipitation, adsorption or cementation
Published 2001
Technologies for Arsenic Removal from Drinking Water, 31 - 42
No abstract available
Book chapter
Kinetics of oxidation of As(III) with SO2/O2 and UV light
Published 2000
Minor Elements 2000: Processing and Environmental Aspects of As, Sb, Se, Te, and Bi, 333 - 343
No abstract available
Book chapter
Published 1998
Polymers in Sensors: Theory and Practice, 257 - 263
The use of simple ferrocene/ferricenium couple in electrochemical sensors and other devices is limited because of its instability in aqueous media. However certain modified ferrocenes are found to be relatively stable and hence are attractive alternatives for the applications. This paper describes the electrochemistry of 11-ferrocenyl-1-undecanethiol (FcC11SH) in sulphuric acid media, which is investigated by cyclic voltammetry of thin films of the material derivatised on gold substrates. It has been found that the oxidation and reduction peak potentials are independent of H+ concentration in the pH range 2-10. However, the peak potentials change linearly with sulphuric acid concentration in the range 1-5 M. Extended cycling of the material indicated that, under the conditions of the experiment, FcC11SH was more stable than the simple ferrocene, and may be suitable for potentiometrically monitoring H+ concentration in concentrated sulphuric acid solutions.
Book chapter
Published 1998
Polymers in Sensors: Theory and Practice, 257 - 263
The use of simple ferrocene/ferricenium couple in electrochemical sensors and other devices is limited because of its instability in aqueous media. However certain modified ferrocenes are found to be relatively stable and hence are attractive alternatives for the applications. This paper describes the electrochemistry of 11-ferrocenyl-1-undecanethiol (FcC11SH) in sulphuric acid media, which is investigated by cyclic voltammetry of thin films of the material derivatised on gold substrates. It has been found that the oxidation and reduction peak potentials are independent of H+ concentration in the pH range 2-10. However, the peak potentials change linearly with sulphuric acid concentration in the range 1-5 M. Extended cycling of the material indicated that, under the conditions of the experiment, FcC11SH was more stable than the simple ferrocene, and may be suitable for potentiometrically monitoring H+ concentration in concentrated sulphuric acid solutions.