Conversion of Rice Husk To A Nanoporous Material Via A Simple One - Pot Synthesis | ||
| Al-Mustansiriyah Journal of Science | ||
| Article 1, Volume 23, Issue 8, December 2012, Pages 61-70 | ||
| Author | ||
| Thana Jaafar Al-Hasani | ||
| Abstract | ||
| Rice husks (RH) are the hard protecting coverings of grains of rice. The main function of rice husk is protecting rice during the growing season. These (RH) pose as a waste in large quantities by plants producing rice. In Iraq have not given any attention to this material, on the contrary, burn to get ride of it leading to a significant pollution. It has been observed through the literature that rice husk ash (RHA) usually containing around 95% silica. It is used by the steel industry and concrete manufacturing, as an excellent insulator and as a catalyst support and heterogeneous catalyst for several catalytic reactions. Sodium silicate from rice husk ash (RHA) was prepared and transformed to functionalized silica with 3-(chloropropyl)triethoxysilane (CPTES) via a simple sol–gel technique in a one-pot synthesis to yield chloro group immobilized on the silica gel surface in precursor compounds RHACCl. [Cu(p-PDA)2Cl2(H2O)2] was immobilized on the RHACl via nucleophilic substitution reaction to yield heterogeneous catalysts. According to analysis of CHNS and FT-IR spectra can be conclude that the [Pd(DTO)2]Cl2, and [Cu(p-PDA)2Cl2(H2O)2] has successful incorporation on RHACCl . X-ray diffraction technique was used to determine the amorphous formula of RHAC-Cu(p-PDA)2, while the atomic force microscope (AFM) technique was used to confirm its nanostructure of compounds. The surface area measurements indicated that RHAC-Cu(p-PDA)2had a specific surface area of 60.15 m2g-1 and a narrow average pore diameter of 1.92 nm. | ||
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