Nanografi Nanotechnology

Humankind has been performing the use of metals in a diverse area and applications. Earlier times, humanity used these metals for producing hunting weapons and defending oneself. Nowadays applications extend their use in industrial area, multiple robotic equipment, defense ammo, etc. Therefore, we encounter use of lanthanum in many areas. Lanthanum is one of the rare earth elements. It is a soft, ductile, silvery-white metallic chemical element with symbol La and atomic number 57. Lanthanum was first found by the Swedish chemist Carl Gustav Mosander. When we examine benefits of lanthanum, we encounter interesting area. * Lanthanum element does not have commercial uses, but its alloys are so popular. Lanthanum is used in large quantities in nickel metal hydride rechargeable batteries for hybrid automobiles. Today, a Toyota Prius hybrid car on the road carries with it about 4.5 kg of lanthanum. These cars have nickel-lanthanum hydride batteries. Also, these batteries are about twice as

Image Retriewed From: http://www.farmaceuticas.com.br/wp-content/uploads/2014/09/ecaw-biocida-agua.jpg Water purification  is a main process of removing undesirable materials, chemicals, biological contaminants, suspended solids and gases from contaminated water. The main aim is to produce water fit for a specific purpose. Most water is disinfected for human consumption ( drinking water ), but water purification may also be designed for a variety of other purposes, including fulfilling the requirements of medical, pharmacological, chemical and industrial applications. Substances that are removed during the process include parasites (such as Giardia or Cryptosporidium), bacteria, algae, viruses, fungi, minerals (including toxic metals such as Lead, Copper etc.), and man-made chemical pollutants. Many contaminants can be dangerous—but depending on the quality standards, others are removed to improve the water's smell, taste, and appearance. Actually there are sev