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Abou-Elyazed AS, Sun Y, El-Nahas AM, Yousif AM. A green approach for enhancing the hydrophobicity of UiO-66(Zr) catalysts for biodiesel production at 298 K. RSC Adv 2020; 10:41283-41295. [PMID: 35516530 PMCID: PMC9057805 DOI: 10.1039/d0ra08217a] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/25/2020] [Accepted: 10/28/2020] [Indexed: 12/04/2022] Open
Abstract
Recently, the incorporation of hydrophobicity on the surface of UiO-66(Zr) has received much attention due to the deactivation of hydrophilic active sites of UiO-66(Zr) upon water adsorption. In this work, we report UiO-66(Zr) catalysts with an assortment of surface hydrophobicities fabricated by the solvent-free method to elucidate the impact of the environment framing Lewis acid sites on their catalytic activity in the production of fatty acid methyl ester (biodiesel) via the esterification of fatty acids at room temperature with high selectivity (100%) and good recyclability. A detailed structural analysis of the materials by N2 sorption, FT-IR, SEM, XRD, water contact angle measurement, dynamic liquid scattering (DLS), NMR and TGA revealed the fabrication of stearic acid-grafted UiO-66(Zr) catalysts (10SA/UiO-66) with fine particle size and a highly hydrophobic network. 10SA/UiO-66(Zr) with enhanced hydrophobicity exhibited superior catalytic performance in the esterification of a fatty acid with a long alkyl chain compared with conventional solid acid catalysts and even liquid acid catalysts. Detailed kinetic studies corroborated that the adsorption of lipophilic acids at the Lewis acid sites besides the enhancement of wettability between the reactants was facilitated by the hydrophobic environment, thus significantly motivating the esterification reaction at room temperature. Furthermore, 10SA/UiO-66(Zr) showed good catalytic activity in the esterification of oleic acid in the presence of water (∼10% in the light of acid weight). Recently, the incorporation of hydrophobicity on the surface of UiO-66(Zr) has received much attention due to the deactivation of hydrophilic active sites of UiO-66(Zr) upon water adsorption.![]()
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Affiliation(s)
- Ahmed S Abou-Elyazed
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China +86-45186413708.,Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom Egypt +20 1064607974
| | - Yinyong Sun
- MIIT Key Laboratory of Critical Materials Technology for New Energy Conversion and Storage, School of Chemistry and Chemical Engineering, Harbin Institute of Technology Harbin 150001 China +86-45186413708
| | - Ahmed M El-Nahas
- Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom Egypt +20 1064607974
| | - Ahmed M Yousif
- Chemistry Department, Faculty of Science, Menoufia University Shebin El-Kom Egypt +20 1064607974.,Chemistry Department, College of Science and Arts, Jouf University Alqurayyat Kingdom of Saudi Arabia
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Yousif AM, Zaid OF, El-Said WA, Elshehy EA, Ibrahim IA. Silica Nanospheres-Coated Nanofibrillated Cellulose for Removal and Detection of Copper(II) Ions in Aqueous Solutions. Ind Eng Chem Res 2019. [DOI: 10.1021/acs.iecr.8b06343] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Affiliation(s)
- Ahmed M. Yousif
- Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
- Chemistry Department, College of Science and Arts, Jouf University, Alqurayyat, Saudi Arabia
| | - Osama F. Zaid
- Chemistry Department, Faculty of Science, Menoufia University, Shebin El-Kom, Egypt
| | - Waleed A. El-Said
- Chemistry Department, Faculty of Science, Assiut University, Assiut 71516, Egypt
- Chemistry Department, Faculty of Science, University of Jeddah, P.O. 80327, Jeddah 21589, Saudi Arabia
| | - Emad A. Elshehy
- Nuclear Materials Authority, P.O. Box 530,
Maadi, Cairo, Egypt
| | - Ibrahim A. Ibrahim
- Central Metallurgical Research & Development Institute (CMRDI), Helwan 11421, Egypt
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Affiliation(s)
- Ahmed M. Yousif
- Chemistry Department, Menoufia University, Shebin El-Kom, Egypt
| | - Sherif A. Labib
- Chemistry Department, Menoufia University, Shebin El-Kom, Egypt
| | - I.A. Ibrahim
- Chemistry Department, Central Metallurgical Research and Development Institute, Helwan, Cairo, Egypt
| | - Asem A. Atia
- Chemistry Department, Menoufia University, Shebin El-Kom, Egypt
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Yousif AM, Labib SA. Fabrication of New Cellulose-Based Sorbents for Fast and Efficient Removal of Hazardous Al(III) Ions from Their Aqueous Solutions. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2015.1050732] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Yousif AM, Atia AA, Zaid OF, Ibrahim IA. Efficient and Fast Adsorption of Phosphates and Sulphates on Prepared Modified Cellulose. J DISPER SCI TECHNOL 2015. [DOI: 10.1080/01932691.2014.988346] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Donia AM, Yousif AM, Atia AA, Labib SA. Fast and Efficient Uptake of Fe(III) from Aqueous Solutions Using Magnetic Functionalized Cellulose. J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2014.938271] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Donia AM, Yousif AM, Atia AA, Abd El-Latif HM. Preparation and Characterization of Modified Cellulose Adsorbents with High Surface Area and High Adsorption Affinity for Hg(II). J DISPER SCI TECHNOL 2014. [DOI: 10.1080/01932691.2013.791626] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Yousif AM. Synthesis of chemically modified macroreticular resins for the preparation of gold nanoparticles via sorption from aqueous gold solution, and the application of these nanoparticles in catalytic remediation. J Polym Res 2012. [DOI: 10.1007/s10965-012-0033-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Yousif AM, Nishioka M, Wakui Y, Suzuki TM. Adsorption of Pd(II), Pt(IV), and Rh(III) on a Ligand Encapsulated Polymer Resin Assisted by Thermal Heating or Microwave Irradiation. Solvent Extraction and Ion Exchange 2012. [DOI: 10.1080/07366299.2011.581053] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
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Yousif AM, Nishioka M, Wakui Y, Suzuki TM. Rapid Adsorption of Rh(III) by Polyamine-functionalized Cellulose Fiber Combined with Microwave Irradiation. CHEM LETT 2010. [DOI: 10.1246/cl.2010.1317] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
Thermally treated egg shell materials were prepared at different temperatures. The samples were investigated by means of FT-IR and thermogravimetric analysis (TGA). The adsorption behaviour of malathion on egg shell and its thermally treated samples was studied using batch method and gave uptake capacities up to 0.964 mmol/g. Adsorption kinetics as well as the adsorption isotherms were discussed. Regeneration of the loaded adsorbent beads towards the successive cycles was also clarified. The adsorption of malathion is maintained until the third cycle without a significant activity loss.
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Affiliation(s)
- Khalid Z Elwakeel
- Egyptian Water and Wastewater Regulatory Agency, Masraweya District, 5th Community, New Cairo city, Egypt.
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Atia AA, Donia AM, Yousif AM. Removal of some hazardous heavy metals from aqueous solution using magnetic chelating resin with iminodiacetate functionality. Sep Purif Technol 2008. [DOI: 10.1016/j.seppur.2007.11.008] [Citation(s) in RCA: 77] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Atia AA, Donia AM, El‐Enein SA, Yousif AM. Effect of Chain Length of Aliphatic Amines Immobilized on a Magnetic Glycidyl Methacrylate Resin towards the Uptake Behavior of Hg(II) from Aqueous Solutions. SEP SCI TECHNOL 2007. [DOI: 10.1080/01496390601069978] [Citation(s) in RCA: 34] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Atia AA, Donia AM, Yousif AM. Comparative study of the recovery of silver(I) from aqueous solutions with different chelating resins derived from glycidyl methacrylate. J Appl Polym Sci 2005. [DOI: 10.1002/app.21751] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Atia AA, Donia AM, Abou-El-Enein SA, Yousif AM. Studies on uptake behaviour of copper(II) and lead(II) by amine chelating resins with different textural properties. Sep Purif Technol 2003. [DOI: 10.1016/s1383-5866(03)00089-3] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Nanda NC, Nekkanti R, Melendez A, Kang SW, Baker C, Yousif AM, Ahmed S. Transesophageal two-dimensional echocardiographic demonstration of the innominate artery and its branches. The American Journal of Geriatric Cardiology 2001; 10:368-70. [PMID: 11684923 DOI: 10.1111/j.1076-7460.2001.00047.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- N C Nanda
- Division of Cardiovascular Disease, University of Alabama at Birmingham, Birmingham, AL 35249, USA.
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Abstract
Lung function was studied in 24 patients with advanced mitral stenosis scheduled for mitral valve replacement (MVR), and revealed an obstructive ventilatory pattern. Forty per cent of the patients had a forced expiratory volume in 1 s (FEV1)<60% of that predicted in the preoperative period. Twenty-five per cent of those operated upon showed a similar pattern up to 110 weeks postoperatively. A blind study of the effect of placebo and beta2 agonist (salbutamol) inhalation was performed preoperatively and 6 months postoperatively, to evaluate the reversibility of airflow obstruction in these patients, flow volume curve and body plethysmographic measurement of airway resistance (Rex) and intrathoracic gas volume (VTG). Patients in the pre and postoperative period showed a significant difference between the placebo and the beta2 agonist responses for FEV1, FEV1 as percentage of FVC (FEV1% FVC), peak expiratory flow rate (PEFR), flow rate of 50% of expiratory vital capacity (Vmax50), Rex and VTG (P<0.001). We conclude that salbutamol inhalation improves obstructive impairment in patients with MVR pre- and postoperatively.
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Cánovas JL, Tresguerres EF, Yousif AM, López-Sáez JF, Navarrete MH. DNA segregation in Escherichia coli cells with 5-bromodeoxyuridine-substituted nucleoids. J Bacteriol 1984; 158:128-33. [PMID: 6370953 PMCID: PMC215389 DOI: 10.1128/jb.158.1.128-133.1984] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
The pattern of segregation of DNA in Escherichia coli K-12 was analyzed by labeling replicating DNA with 5-bromodeoxyuridine followed by differential staining of nucleoids. Three types of visible arrangement were found in four-nucleoid groups derived from a native nucleoid after two replication rounds. Type A, segregation of both old strands toward cell poles, appeared with the highest frequency (0.6 to 0.8). Type B, segregation of one old strand toward the cell pole and the other toward the cell center, was twice as frequent as type C, segregation of both old strands toward the cell center. These results confirm previous data showing that DNA segregation in E. coli is nonrandom while presenting a certain degree of randomness. The proportions of the three indicated types of arrangement suggest a new probabilistic model to explain the observed segregation pattern. It is proposed that DNA strands segregate either nonrandomly, with a probability of between 0 and 1, or randomly. In nonrandom segregation, both old strands are always directed toward cell poles. Experimental data reported here or by other authors fit better with the predictions of this model than with those of other previously proposed proposed deterministic or probabilistic models.
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