الفهرس 
Chapter one Introduction & Literature ReviewOnly 14 pages are availabe for public view
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Abstract
”This work concerns the biological synthesis of copper oxide nanoparticles and their antibacterial activity against three types of bacteria. In addition, two attempts were made to chemically modify natural cellulose for the aim of removal of Cu2+, Hg2+, Pb2+ and Cd2+ from aqueous solution and environmental water samples. It included preparation of two different phases of the modified cellulose: 1. 1st modified phase (DiGu-MC) was formed by the condensation of the oxidized cellulose with diaminoguanidine. The resulting modified cellulose was characterized by Scanning Electron Microscopy (SEM), Infra-Red (FT-IR), Energy-dispersive X-ray spectroscopy (EDX) and was used as an adsorbent for the removal of Cu2+, Hg2+, Pb2+ and Cd2+ with maximum adsorption capacity of 66, 55, 70, and 41 mg.g−1, respectively. 2nd modified phase (PhGu-MC) was formed by the condensation of the oxidized cellulose with aminoguanidine and then with phenylisothiocyanate. The resulting modified cellulose was characterized by Scanning Electron Microscopy (SEM), Infra-Red (FT-IR), Energy-dispersive X-ray spectroscopy (EDX) and was used as an adsorbent for the removal of Cu2+, Hg2+ and Pb2+ with maximum adsorption capacity of 50, 94 and 55 mg.g−1, respectively.