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Drafts by س ش

In the present article we report a study on using microemulsion contains triton 100 to clean the ... more In the present article we report a study on using microemulsion contains triton 100 to clean the surface of the wall paintings in saint Jeremiah monastery in Saqqara (4 th century) , Being these systems mainly composed of water (more than 80% by weight), it is using in a poultice or when the microemulsion added to the nano gel to improve it's performance and The consolidation by nano lime dispersed in ethanol is used by brushing through Japanese paper with injecting the cracks .

Papers by س ش

Journal of Nano Research, 2017

In the present article we report a study on using microemulsion contains triton 100 to clean the ... more In the present article we report a study on using microemulsion contains triton 100 to clean the surface of the wall paintings in saint Jeremiah monastery in Saqqara (4th century) , Being these systems mainly composed of water (more than 80% by weight), it is using in a poultice or when the microemulsion added to the nano gel to improve it's performance , Fourier Transform Infra Red spectroscopy (FTIR),and The consolidation by nano lime dispersed in ethanol is used by brushing through Japanese paper and injecting the cracks.

The magnetic nano particles (MNP's) presented in cobalt ferrite CoFe2O3 and magnetic nano wir... more The magnetic nano particles (MNP's) presented in cobalt ferrite CoFe2O3 and magnetic nano wires (MNW's) presented in spinel nickel zinc ferrite magnetic nanowires NiZnFe2O3 are popularly used in medicine field and in electronics. In present work they have been used in conservation field for consolidation of 2 models (one for application of MNP and other for MNW ) of an Egyptian fresco painting kept in Coptic museum. They are filling the gaps inside the structure and improve the way of penetration of the magnetic nano materials through surface. The two treated models were studied by Fourier transform infrared( FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and Spectrophotometer to determine the visual properties, and morphological and physical properties of the treated two models. The effect of different morphology of magnetic nano wires and magnetic nano particles on the mechanical characteristics of treated models using means of mechanical tests was eval...

In this study novel organic-inorganic hybrid nanocomposites were synthesized from modi�ed cellulo... more In this study novel organic-inorganic hybrid nanocomposites were synthesized from modi�ed cellulose acetate propionate (MCAP) via sol-gel reaction at ambient temperature. e inorganic phase was introduced in situ by hydrolysis-condensation of tetraethoxysilane (TEOS) in different concentrations, under acid catalysis, in the presence of organic polymer dissolved in acetone. e chemical modi�cation of CAP was monitored by infrared spectroscopy (IR). e nanocomposites structure was characterized by IR analysis and solid state 29 Si NMR studies. e spectral data revealed that organic and inorganic phases are linked through covalent bound. Surface morphology of the samples and the degree of dispersion of inorganic phase in the polymer matrix were investigated using atomic force microscopy (AFM) and scanning electron microscopy (SEM). e actual incorporation of the inorganic component into the hybrid nanocomposites was deducted from the residual weight according to thermogravimetric analysis (TGA).

Journal of Asian Ceramic Societies, 2015

The influence of the addition of different amount of native potato starch on both the rheological... more The influence of the addition of different amount of native potato starch on both the rheological properties and consolidation of the dispersed hydroxyapatite powder in aqueous media were thoroughly investigated. The amount of native potato starch addition has ranged from 10 to 40 vol.%. The results indicated that the rheological properties of the hydroxyapatite suspension were improved with addition of potato starch. The potato starch and HA particulates were found to be homogeneously distributed through SEM investigation. The relative density and the compressive strength of the consolidated slurries were increased with the increase of the starch amount till 30 vol.% addition and then decreased thereafter. Porous 3D-HA sample would produce from the sintering of green sample via consolidation technique at 1300 • C for 2 h. The porous sample was found to possess apparent porosity of about 50% with sufficient compressive strength.

International journal of Environmental Science and Technology

This investigation seeks to reduce the environmental impact of the tanning process by recovering ... more This investigation seeks to reduce the environmental impact of the tanning process by recovering Ca and Cr from tannery waste solution. The treatment process reduces both the amount of Cr discharged to the environment and the amount of raw Cr extracted from natural resources. The procedure was based on the selective separation of Ca ions from the waste solution as Ca oxalate, prior to the recovery of Cr as the hydroxide precipitate at pH 6.5. The dried Cr hydroxide cake was then subjected to heating (heating rate 0.5 °C min−1) at different temperatures up to 500 °C to produce Cr oxide nanoparticles. The physicochemical characteristics of the nanoparticles were investigated using X-ray diffraction, Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, surface area measurement and thermal analysis. Results revealed that heating of the treated Cr hydroxide at 300 °C yielded amorphous Cr oxide, while with heating at 400 °C, the Cr oxide started to c...

In the present article we report a study on using microemulsion contains triton 100 to clean the ... more In the present article we report a study on using microemulsion contains triton 100 to clean the surface of the wall paintings in saint Jeremiah monastery in Saqqara (4 th century) , Being these systems mainly composed of water (more than 80% by weight), it is using in a poultice or when the microemulsion added to the nano gel to improve it's performance and The consolidation by nano lime dispersed in ethanol is used by brushing through Japanese paper with injecting the cracks .

Journal of Nano Research, 2017

In the present article we report a study on using microemulsion contains triton 100 to clean the ... more In the present article we report a study on using microemulsion contains triton 100 to clean the surface of the wall paintings in saint Jeremiah monastery in Saqqara (4th century) , Being these systems mainly composed of water (more than 80% by weight), it is using in a poultice or when the microemulsion added to the nano gel to improve it's performance , Fourier Transform Infra Red spectroscopy (FTIR),and The consolidation by nano lime dispersed in ethanol is used by brushing through Japanese paper and injecting the cracks.

The magnetic nano particles (MNP's) presented in cobalt ferrite CoFe2O3 and magnetic nano wir... more The magnetic nano particles (MNP's) presented in cobalt ferrite CoFe2O3 and magnetic nano wires (MNW's) presented in spinel nickel zinc ferrite magnetic nanowires NiZnFe2O3 are popularly used in medicine field and in electronics. In present work they have been used in conservation field for consolidation of 2 models (one for application of MNP and other for MNW ) of an Egyptian fresco painting kept in Coptic museum. They are filling the gaps inside the structure and improve the way of penetration of the magnetic nano materials through surface. The two treated models were studied by Fourier transform infrared( FTIR), Scanning Electron Microscopy (SEM), X-ray Diffraction (XRD) and Spectrophotometer to determine the visual properties, and morphological and physical properties of the treated two models. The effect of different morphology of magnetic nano wires and magnetic nano particles on the mechanical characteristics of treated models using means of mechanical tests was eval...

In this study novel organic-inorganic hybrid nanocomposites were synthesized from modi�ed cellulo... more In this study novel organic-inorganic hybrid nanocomposites were synthesized from modi�ed cellulose acetate propionate (MCAP) via sol-gel reaction at ambient temperature. e inorganic phase was introduced in situ by hydrolysis-condensation of tetraethoxysilane (TEOS) in different concentrations, under acid catalysis, in the presence of organic polymer dissolved in acetone. e chemical modi�cation of CAP was monitored by infrared spectroscopy (IR). e nanocomposites structure was characterized by IR analysis and solid state 29 Si NMR studies. e spectral data revealed that organic and inorganic phases are linked through covalent bound. Surface morphology of the samples and the degree of dispersion of inorganic phase in the polymer matrix were investigated using atomic force microscopy (AFM) and scanning electron microscopy (SEM). e actual incorporation of the inorganic component into the hybrid nanocomposites was deducted from the residual weight according to thermogravimetric analysis (TGA).

Journal of Asian Ceramic Societies, 2015

The influence of the addition of different amount of native potato starch on both the rheological... more The influence of the addition of different amount of native potato starch on both the rheological properties and consolidation of the dispersed hydroxyapatite powder in aqueous media were thoroughly investigated. The amount of native potato starch addition has ranged from 10 to 40 vol.%. The results indicated that the rheological properties of the hydroxyapatite suspension were improved with addition of potato starch. The potato starch and HA particulates were found to be homogeneously distributed through SEM investigation. The relative density and the compressive strength of the consolidated slurries were increased with the increase of the starch amount till 30 vol.% addition and then decreased thereafter. Porous 3D-HA sample would produce from the sintering of green sample via consolidation technique at 1300 • C for 2 h. The porous sample was found to possess apparent porosity of about 50% with sufficient compressive strength.

International journal of Environmental Science and Technology

This investigation seeks to reduce the environmental impact of the tanning process by recovering ... more This investigation seeks to reduce the environmental impact of the tanning process by recovering Ca and Cr from tannery waste solution. The treatment process reduces both the amount of Cr discharged to the environment and the amount of raw Cr extracted from natural resources. The procedure was based on the selective separation of Ca ions from the waste solution as Ca oxalate, prior to the recovery of Cr as the hydroxide precipitate at pH 6.5. The dried Cr hydroxide cake was then subjected to heating (heating rate 0.5 °C min−1) at different temperatures up to 500 °C to produce Cr oxide nanoparticles. The physicochemical characteristics of the nanoparticles were investigated using X-ray diffraction, Fourier transform infrared, scanning electron microscopy, transmission electron microscopy, surface area measurement and thermal analysis. Results revealed that heating of the treated Cr hydroxide at 300 °C yielded amorphous Cr oxide, while with heating at 400 °C, the Cr oxide started to c...