Monday, October 01, 2007

New type of Bismuth oxide nanoparticles

UPM researchers have developed BiOX, a new type of bismuth oxide nanoparticle, which is cheap and ecologically friendly to produce. Bismuth oxide is important in everyday life its non-toxic properties. It can be used as a substitute for lead, eradicating peptic ulcer bacteria, in cosmetics and in solid oxide fuel cell

Bismuth oxide is becoming so important in everyday life for its non-toxic and non-carcinogenic status. Demand is rising to use the material as a substitute for lead particularly in copper alloys for plumbing fittings for water drinking system. Suggestions have also been made for including the material in tableware glazing, glasses and crystal ware.

In pharmaceutical industries, the material is proven to be the most effective ingredient eradicating bacteria responsible for inflicting peptic ulcers. The material combined with chloride gives a special pearlescent, inimitable deep luster to lipstick, nail polish, eye shadows and facial powders in addition to its lubricating qualities for smoother, silkier skin comfort.

Other technological applications of bismuth oxide are in the field of advanced ceramics, rare earth chemicals, thermal spray powders, solid oxide fuel cell (SOFC) materials, catalysts, nano-magnetics, electroplating and biotechnology.

BiOX is a new type of bismuth oxide nanoparticle with distinctive bright orange colour. Its chemical symbol is Bi2O3 and its molecular weight is 466. The material particle size is 37nm with its corresponding specific surface area of 8.9m2g-1.

The oxides are of tetragonal-Bi2O3 which through controlled synthesis procedure produce materials resemble into rosette morphology (see attachment for images). The preparation method opted was rather simple and distinguished by the monophase composition of the product, ecological safety and simple operation, therefore promising low operating cost.
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