NOVELTY – Electrochemically-assisted photocatalytic degradation of reactive dyes comprises the use of titanium electrodes modified with ruthenium oxide. 120 minutes reaction gives complete decoloration of aqueous solutions of the dyes, and approximately 50% mineralisation. USE – In industrial chemistry. ADVANTAGE – The toxic dyes are treated by a simple rapid technique.
D15 (Chemical or biological treatment of water, industrial waste and sewage – including purification, sterilising or testing water, scale prevention, treatment of sewage sludge, regeneration of active carbon which has been used for water treatment and impregnating water with gas e.g. CO2, but excluding plant and anti-pollution devices (C02).); E24 (Other dyes, all precursors.); J03 (Electrochemical processes and electrophoresis – including ozone production, brine electrolysis, water electrolysis, production of chemical compounds and non-metallic elements, but excluding batteries or other means of producing power and the treatment of metals (C25B).)