College of Science, University of Mustansiriyah discussed a master dissertation on the preparation of a Nano-composite used to treat environmental pollution resulting from the influence of water by industrial dyes by the postgraduate student, Mr. Naseer Ali Mansour.

The dissertation reviewed the preparation of the Nano-composite from tin dioxide (SnO2), based on three simple and inexpensive methods and studying the physical properties of the compound, as well as demonstrating its efficiency in treating environmental pollution resulting from the influence of water by industrial dyes via testing effective dissociation of trimethylene blue dye and its treatment as an industrial model for water pollution.

The dissertation highlighted the success of the methods used in manufacturing the nanomaterial with specifications and physical properties that were controlled by changing the acidity of the chemical precursor material used in preparing the new material at a low preparation temperature of 130 degrees Celsius, in addition to the effectiveness of the prepared material in dissolving the methylene dye and purifying the water by it reached (98%) via using solar radiation, which is a catalyst for the material to decompose the dye as an energy source, which is natural, available and inexpensive from the economic aspects.