Conversion of Rice Husk To A Nanoporous Material Via A Simple One - Pot Synthesis

Jaafar Al-Hasani, Thana

	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, 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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