Document Details

Document Type : Thesis 
Document Title :
“EVALUATION OF DOPED METAL OXIDE NANOMATERIALS FOR SELECTIVE DETECTION AND EXTRACTION OF METAL IONS”
" تقييم مواد متناهية الصغر من أكسيد الفلز المشوب للكشف والتقدير الإنتقائي للأيونات الفلزية "
 
Subject : Faculty of Sciences 
Document Language : Arabic 
Abstract : Environmental water contain wide range of contaminants including heavy metal ions that enters the water through disposal of waste from industries. Heavy metal poisoning has been a serious concern all over the globe. Heavy metals are well known to be non-biodegradable and tend to bio-accumulate at various concentrations. A number of methods have been proposed to remove heavy metal ions from water and among them adsorption is one of the best methods. With the development of nanotechnology, nanomaterials are used as the sorbents in wastewater treatment; several researches have proved that nanomaterials are the effective sorbents for the removal of heavy metal ions from wastewater due to their unique structure properties. In accordance, this thesis involves the identification of environmentally friendly, low-cost and efficient nano-metal oxide sorbents for water/wastewater purification and detect the chosen metal ions selectively from aqueous media using inductively coupled plasma-optical emission spectrometry. Three kinds of mixed metal oxides nanomaterials are presented in this thesis, including Fe2O3-TiO2, NiO-CuO and Ni-SiO2. The newly prepared adsorbents were characterized by both chemical and spectral methods. Batch adsorption experiment was carried out in order to study the adsorption ability of nanomaterials for the target metal ions. Based on selectivity study, Fe2O3-TiO2, NiO-CuO and Ni-SiO2 nanomaterials were found to be most selective toward La(III), Fe(III) and Cr(VI), respectively. Several parameters that affect the maximum adsorption capacity of new adsorbents toward metal ions of interest, including pH, initial metal ions concentration and contact time were also investigated. Data obtained from adsorption isotherm study of the metal ions of interest were examined by well-known models, such as Freundlich and Langmuir classical adsorption isotherm models. Different kinetic models were also investigated in order to obtain kinetic adsorption parameters. Finally, the validation of this methodology was confirmed by applying it to real environmental samples. 
Supervisor : Prof. Ekram Y. Danish 
Thesis Type : Master Thesis 
Publishing Year : 1439 AH
2018 AD 
Co-Supervisor : Prof. Hadi M. Marwani 
Added Date : Monday, August 13, 2018 

Researchers

Researcher Name (Arabic)Researcher Name (English)Researcher TypeDr GradeEmail
خلود فايز المصلحيAl-moslihy, Kholoud FayezResearcherMaster 

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