Semiconductor layered nanomaterials to encapsulate organic compounds
by A.A. El-Meligi
International Journal of Nano and Biomaterials (IJNBM), Vol. 2, No. 1/2/3/4/5, 2009

Abstract: Semiconductor nanomaterials (FePS₃ and MnPS₃) were intercalated with organic compounds, N,N'-dimethyl-4,4'-bipyridinium (DBP) and pyridinium cations. The resultant compounds have been characterised by X-ray diffraction (XRD). Insertion of the DBP expands lattice spacing by 3.4Å with respect to FePS₃ and MnPS₃. There was no phase transformation of leaving the intercalated sample in open atmosphere. Insertion of pyridinium expands lattice spacing by 3.4Å and 5.9Å with respect to FePS₃ and MnPS₃. Phase transformation occurred after leaving the sample in open atmosphere for few days. The molecular size of intercalates may play a role in the lattice expansions. The XRD patterns exhibit sharp <00l> reflections of the intercalated compounds. This means that materials are of crystalline nature. The intercalation of such materials enables the encapsulation of hazardous organic compounds, such as DBP, which may be applied safely.

Online publication date: Sat, 08-Aug-2009

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