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Two faculty members from the Production Engineering and Metallurgy Department receive a patent
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Dr. Sami Abu Al-Noon Ajeel and Dr. Nasser Kurdi Zidan, the two faculty members staff in the Production Engineering and Metallurgy Department in addition to Dr. Khaled Ajami Sukkar, a lecturer in the Department of Chemical Engineering, received a patent under the title:- (Extraction of high-purity nano-silicon from agricultural waste (rice husks) using advanced thermal technology at low temperatures) High Purity Nanosilicon Extraction from Agriculture Waste (Rice Husks) using advanced Hydrothermal Technology at Low Temperatures High purity silicon nanoparticles were extracted from Iraqi agricultural waste (rice husks) in a new innovative way. Where the innovative method used the extraction process through the use of hydrothermal processes Hydrothermal process (molten salt process in reduce silica) By manufacturing a metal vessel as a stainless steel reactor with a suitable and innovative design with an inner mold made of plastic material (Polytetrafluoroethylene) PTFE, its melting temperature is up to 750 ° C. Where the use of AlCl3 triple chloride salts was invented as a reducing solution with a reaction temperature of 190,250oC to extract high-purity silicon nanoparticles, using aluminum powder (Al) as a reducing agent for silica nanoparticles (SiO2) extracted from Iraqi rice husks by a method. Precipitation process. The purity of the produced Nano powder is controlled depending on the addition ratios of reducing medium (AlCl3) and reducing agent (Al) and the percentage of reducing substance extracted from rice husks (SiO2) in ideal proportions and controlling the ideal catalytic conditions represented by temperature and reduction time. The best proportions of these influencing substances are (0.8:1:8)g (Al:SiO2:AlCl3). Which is followed by the chemical filtration process in a new and unique way. The (SiNPs) produced in this way is characterized by a high purity up to (99.973 wt%) as demonstrated by the results of laboratory tests using X-ray diffraction (XRD) and energy dispersive X-ray (XRF). The results of the atomic examination (AFM) conducted on the produced material also proved that (SiNPs) has a crystal size of (5-25) nanometers. On the other hand, the nanoparticles produced in this way have a high surface area that will help open up great horizons of industrial and engineering applications in all industrial fields, including the production of absorbent and treatment materials in many medical applications and the manufacture of solar cells with high efficiency and the manufacture of coatings in spacecraft, where The total surface area was (282.5 m2/g).
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