الفهرس 
IntroductionOnly 14 pages are availabe for public view
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Abstract
Chapter 1, the introduction:
The first chapter is the introduction in which an outline on the importance of nano
materials and their applications in different fields is presented. This chapter also
includes a literature survey on the previous work performed on the removal of different
organic pollutants from water samples.
Chapter 2, the experimental:
This chapter includes complete description of the materials and methods used for
the preparation of the nanosized mono oxides of magnesium, zirconium and MgO-ZrO2
mixed nanooxides. This chapter also describes the instrument used in characterization
of the prepared samples such as thermogravimetric – differential thermal analysis
(TGA/DTA), X-ray diffraction (XRD), high resolution transmission electron microscopy
(HRTEM), Fourier Transform Infrared spectra (FTIR) and UV-Visible
spectrophotometer.
Chapter 3, results and discussion:
This chapter contains the discussion of the results obtained and their analysis
which can be summarize as follows:
The oxides were prepared by titration of 50 ml of 0.1 M hydrated magnesium
acetate, zirconyl chloride or both of them DROP by DROP to 50 ml of 0.2 M of
different organic acids viz. oxalic, tartaric, citric, succinic, malic, malonic and
glycine, respectively, in 1: 2 M ratio. The powder so obtained was annealed at
750oC for six hours in muffle furnace to obtain the corresponding nanosized
magnesium oxides. The prepared nanoparticles were characterized as follows:
1- TGA/DTA analysis showed that the organic precursors degrade through three
steps; the first represents the dehydration of physically adsorbed water molecule
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while the second represents the dehydration of water of crystallization while the
third represents the decomposition of the organic metal precursors to the
corresponding nanosized metal oxide (MgO).
2- FTIR spectra of the organic acids and glycine precursors, showed the presence
of bands characteristic to νOH, νC=O, δOH and νM-O.The first three bands
disappeared in the spectra of the calicinated samples with the appearance of the
bands corresponding to the stretching vibrations of the metal oxide.
3- The XRD patterns of magnesium, zirconium and mixed magnesium – zirconium
nanooxides showed the presence of MgO (cubic) and the orthorhombic type
phase of zirconium oxide