Copper cable doped with tin oxide and its application to photodegrade natural organic matters.

Natural organic matters are of particular importance in drinking water treatment due to their reaction with chlorine, and formation of disinfection byproducts that cause cancer in humans. Photocatalysis can remove natural organic matters from water but usually powdery photocatalysts are used which should be separated from water by filtration due to their toxic effects. In this work, a piece of copper cable used in electric industries was doped with tin oxide and applied as a photocatalyst to remove natural organic matters, humic acid and humate liquid fertilizer, from water.

Promotion of brass nanowires with lanthanum oxide and its application for photodegradation of tetracycline wastewater.

Today, pharmaceuticals are considered as one of the sources of water pollution, among which antibiotics have complicated structure and antibacterial property, so they cannot be removed from water by common treatment methods. Tetracycline is an antibiotic which is used to treat humans and infected animals. Photocatalytic degradation is an effective method which is used for the removal of antibiotics from water.