Ph.D

Sep 24, 2002 - Oct 2, 2007

رئيس قسم [رئيس قسم التحليلات المرضية]

Sep 2, 2006 - Sep 2, 2010

Modified Correlation for Low-Density Polyethylene (LDPE) Solubility in Several Organic Solvents

Feb 17, 2018

Journal Theoretical Foundations of Chemical Engineering

publisher Elsevier

DOI https://doi.org/10.1016/j.polymer.2024.127760

A nonideal solubility equation is developed based on crystallinity and is applied to model the solidliquid equilibrium for crystalline low-density polyethylene (LDPE) in a set of pure and blended nonpolar organic solvents experimentally at 338–379 K and atmospheric pressure. The polymer concentration ranges from 0.5 to 35 g in 100 mL solvent. Modified correlation based on the heat of fusion and the melting temperature was attained by using SSPS software based on experimental data. The ideal solubility and nonideal solubility equations were applied with two different regular methods for activity coefficient calculation, which do not correlate with the experimental data in large. The data collected from developed nonideal equation and modified correlation were found in good agreement with experimental data.

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Evaluation and comparison of UiO66 and its functionalized variants for the removal of Cu (II) ions from wastewater

Oct 27, 2024

Journal Polymer

publisher Elsevier

DOI https://doi.org/10.1016/j.polymer.2024.127760

This study examined the effectiveness of polyvinyl chloride (PVC) mixed matrix membranes incorporating UiO66 and UiO66-NH2 metal-organic frameworks (MOFs) for removing varying concentrations of Cu (II) ions from wastewater. The findings indicated that adding UiO66-NH2 to the functionalized UiO (FUiO) membrane enhanced its porosity, pore size, hydrophilicity, and pure water flux. Furthermore, integrating UiO66-NH2 into the PVC matrix led to an impressive Cu (II) ion removal efficiency exceeding 99 %. The PVC-FUiO2 membrane also demonstrated about 93.5 % reusability after the first cycle. Overall, the results confirmed that the PVCFUiO2 (Functionalized UiO66) membrane exhibited superior performance in terms of Cu (II) removal efficiency and shorter separation times across various Cu (II) concentrations compared to the unmodified membrane.

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