Tarek Taha Ahmed Ali
@staffsites.sohag-univ.edu.eg
Professor Chemistry Department/Faculty of Science
Sohag University
Prof. Tarek T. Ali, is a Professor of Materials Chemistry & Catalysis at Chemistry Department, Faculty of Science, Sohag University, Arab Republic of Egypt. Previously, he appointed as an Associate Professor of Physical Chemistry at King Abdulaziz University, Jeddah, Saudi Arabia. He holds his PhD in Physical Chemistry from South Valley University, Egypt in collaboration with Department of Materials Chemistry, Graduate School of Engineering, Tohoku University, Japan. He spent one year as a visiting scholar at New Industry Creation Hatchery Center (NICHE), Tohoku University, Japan, and as a Guest Scientist with Tohoku University (Japan), Alexander Universität (Germany) and University of Pardubice (Czech Republic). His research interests includes nano-composite metal oxides synthesis and its catalytic applications, oxidation catalysis, acid – base catalysis, photocatalysis, surface and bulk characterization, green chemistry, selective catalytic reduction of nitrogen oxides.
RESEARCH, TEACHING, or OTHER INTERESTS
Catalysis, Physical and Theoretical Chemistry, Materials Chemistry, Renewable Energy, Sustainability and the Environment
Scopus Publications
Scholar Citations
Scholar h-index
Scholar i10-index
Scopus Publications
Bahaa M. Abu-Zied, Tarek T. Ali, and Lamia Adly
Springer Science and Business Media LLC
AbstractDue to their tremendous industrial, environmental, and biological applications, research focusing on the synthesis and applications of silver nanoparticles (Ag NPs) has attracted increased interest from researchers over the past two decades. Their structural as well as textural properties can be easily tuned depending on the synthesis protocol utilized. Combustion synthesis has received increased attention as a one-pot route for the synthesis of a wide spectrum of nanomaterials. In this study, we present the results of synthesizing Ag NPs employing urea as a combustion fuel. The effect of the temperature of calcination on the formation and structural features of Ag NPs has been checked over the 400–700 °C temperature range. The characterization of the synthesized Ag NPs has been performed using XRD, SEM, TEM, and XPS techniques. It was found that Ag NPs, with a crystallite size of 40 nm, start to form at around 400 °C. Conducting the calcination at the 500–700 °C range results in the persistence of the obtained Ag NPs. Moreover, the obtained nanomaterials are characterized by a membrane-like morphology. The activity performance of the synthesized Ag NPs was examined for the hydrolysis of sodium borohydride (NaBH4) over a temperature range of 35–50 °C. Increasing the calcination temperature has led to a decrease in the activity of the Ag NPs during the NaBH4 hydrolysis. Graphical Abstract
Katabathini Narasimharao, Tarek T. Ali, Bahaa M. Abu-Zied, and Sulaiman Yahya Alfaifi
Elsevier BV
Bahaa M. Abu-Zied, Tarek T. Ali, and Lamia Adly
Elsevier BV
Sulaiman N. Basahel, Mohamed Mokhtar, Tarek T. Ali, and Katabathini Narasimharao
Elsevier BV
Katabathini Narasimharao and Tarek T. Ali
Elsevier BV
Karima Almashhori, Tarek T. Ali, Abdu Saeed, Reem Alwafi, Magda Aly, and Faten E. Al-Hazmi
Royal Society of Chemistry (RSC)
TiO2 with different ratios of anatase/rutile phases were synthesized via a microwave assisted sol–gel method and by applying a single source precursor (SSP) with a constant concentration of nitric acid that was used as the structure directing agent.
Bahaa M. Abu-Zied and Tarek T. Ali
Elsevier BV
Alaa J. Faqeeh, Tarek T. Ali, Sulaiman N. Basahel, and Katabathini Narasimharao
Elsevier BV
Hatem A. Mahmoud, Katabathini Narasimharao, Tarek T. Ali, and Kamal M. S. Khalil
Springer Science and Business Media LLC
Tarek T. Ali, Sulaiman N. Basahel, Hatem A. Mahmoud, Kamal M.S. Khalil, and Katabathini Narasimharao
Elsevier BV
Bahaa M. Abu-Zied, Salem M. Bawaked, Samia A. Kosa, Tarek T. Ali, Wilhelm Schwieger, and Faisal M. Aqlan
Elsevier BV
Sulaiman N. Basahel, Mohamed Mokhtar, Edreese H. Alsharaeh, Tarek T. Ali, Hatem A. Mahmoud, and Katabathini Narasimharao
American Scientific Publishers
Sulaiman Basahel, Mohamed Mokhtar, Edreese Alsharaeh, Tarek Ali, Hatem Mahmoud, and Katabathini Narasimharao
MDPI AG
Mesoporous CuO-ZrO2 catalysts were prepared and calcined at 500 °C. The performance of the synthesized catalysts for benzylation of benzene using benzyl chloride was studied. The bare support (macroporous ZrO2) offered 45% benzyl chloride conversion after reaction time of 10 h at 75 °C. Significant increase in benzyl chloride conversion (98%) was observed after CuO loading (10 wt. %) on porous ZrO2 support. The conversion was decreased to 80% with increase of CuO loading to 20 wt. %. Different characterization techniques (XRD, Raman, diffuse reflectance UV-vis, N2-physisorption, H2-TPR, XPS and acidity measurements) were used to evaluate physico-chemical properties of CuO-ZrO2 catalysts; the results showed that the surface and structural characteristics of the ZrO2 phase as well as the interaction between CuO-ZrO2 species depend strongly on the CuO content. The results also indicated that ZrO2 support was comprised of monoclinic and tetragonal phases with macropores. An increase of the volume of monoclinic ZrO2 phase was observed after impregnation of 10 wt. % of CuO; however, stabilization of tetragonal ZrO2 phase was noticed after loading of 20 wt. % CuO. The presence of low-angle XRD peaks indicates that mesoscopic order is preserved in the calcined CuO-ZrO2 catalysts. XRD reflections due to CuO phase were not observed in case of 10 wt. % CuO supported ZrO2 sample; in contrast, the presence of crystalline CuO phase was observed in 20 wt. % CuO supported ZrO2 sample. The mesoporous 10 wt. % CuO supported ZrO2 catalyst showed stable catalytic activity for several reaction cycles. The observed high catalytic activity of this catalyst could be attributed to the presence of a higher number of dispersed interactive CuO (Cu2+-O-Zr4+) species, easy reducibility, and greater degree of accessible surface Lewis acid sites.
Katabathini Narasimharao and Tarek T. Ali
Elsevier BV
Sulaiman N Basahel, Tarek T Ali, Mohamed Mokhtar, and Katabathini Narasimharao
Springer Science and Business Media LLC
Abstract Nanosized ZrO2 powders with near pure monoclinic, tetragonal, and cubic structures synthesized by various methods were used as catalysts for photocatalytic degradation of methyl orange. The structural and textural properties of the samples were analyzed by X-ray diffraction, Raman spectroscopy, TEM, UV-vis, X-ray photoelectron spectroscopy (XPS), and N2 adsorption measurements. The performance of synthesized ZrO2 nanoparticles in the photocatalytic degradation of methyl orange under UV light irradiation was evaluated. The photocatalytic activity of the pure monoclinic ZrO2 sample is higher than that of the tetragonal and cubic ZrO2 samples under optimum identical conditions. The characterization results revealed that monoclinic ZrO2 nanoparticles possessed high crystallinity and mesopores with diameter of 100 Å. The higher activity of the monoclinic ZrO2 sample for the photocatalytic degradation of methyl orange can be attributed to the combining effects of factors including the presence of small amount of oxygen-deficient zirconium oxide phase, high crystallinity, large pores, and high density of surface hydroxyl groups.
Tarek T. Ali, Katabathini Narasimharao, Ivan P. Parkin, Claire J. Carmalt, Sanjayan Sathasivam, Sulaiman N. Basahel, Salem M. Bawaked, and Shaeel A. Al-Thabaiti
Royal Society of Chemistry (RSC)
ZnO treated at 200 °C offered high photocatalytic degradation of methyl orange (99%) in a short time (90 min). The activity can be attributed to several factors including low crystallite size, high band gap energy and porosity.
Tarek T. Ali, Katabathini Narasimharao, Nesreen S. Ahmed, Sulaiman Basahel, Shaeel Al-Thabaiti, and Mohamed Mokhtar
Elsevier BV
Mohamed Mokhtar, Sulaiman N. Basahel, and Tarek T. Ali
Elsevier BV
Katabathini Narasimharao, Tarek T. Ali, Salem Bawaked, and Sulaiman Basahel
Elsevier BV
Katabathini Narasimharao and Tarek T. Ali
Springer Science and Business Media LLC
Kamal M.S. Khalil, Rafat M. El-Khatib, Tarek T. Ali, Hatem A. Mahmoud, and Ahmed A. Elsamahy
Elsevier BV
Mohamed Mokhtar, Sulaiman N. Basahel, and Tarek T. Ali
Springer Science and Business Media LLC
Irene E. Paulauskas, Deena R. Modeshia, Tarek T. Ali, Elsayed H. El-Mossalamy, Abdullah Y. Obaid, Sulaiman N. Basahel, Ahmed A. Al-Ghamdi, and Felicity K. Sartain
Johnson Matthey
*Email: felicity.sartain@bio-nano-consulting.com The photocatalytic activities of a series of titanium dioxide (TiO2) based nanoparticles, synthesised via flame spray pyrolysis (FSP), have been investigated and compared with the commercially available Evonik Aeroxide TiO2 P 25 (P 25). The effects of metal ions aluminium, tin and platinum, respectively, on the physical and chemical properties of the TiO2 nanoparticles are reported. The set of six samples were characterised by X-ray powder diffraction (XRD), transmission electron microscopy (TEM), inductively coupled plasma-mass spectrometry (ICP-MS) and ultraviolet-visible (UV-vis) diffuse reflectance spectroscopy. Specific surface areas were determined using nitrogen adsorption and desorption measurements. Subsequent photocatalytic studies of the degradation of methyl orange (MO) dye under UV irradiation demonstrated that addition of Al and Sn had a negative effect on catalytic performance, whereas the addition of ≤0.7 at% Pt to each sample enhanced photocatalytic activity. Most interestingly, the Pt-doped composite samples (TiO2-Sn/Pt and TiO2-Al/Pt) both showed a significantly higher rate of degradation of MO, when compared to P 25. All Pt-doped samples show an increased visible photon absorption capacity. The relationships between the physical and chemical characteristics are discussed in relation to photocatalytic performance.
S.N. Basahel, Tarek T. Ali, K. Narasimharao, A.A. Bagabas, and M. Mokhtar
Elsevier BV
Patrick Nickels, Hang Zhou, Sulaiman N. Basahel, Abdullah Y. Obaid, Tarek T. Ali, Ahmed A. Al-Ghamdi, El-Sayed H. El-Mossalamy, Abdulrahman O. Alyoubi, and Stephen A. Lynch
American Chemical Society (ACS)
We describe a lab-scale closed-circulating test system for photocatalytic wastewater treatment. The system comprises a UV-LED photoreactor, a microcirculating fluid pump, and an in-stream sensor unit. The reactor can hold volumes up to 250 mL and is optimized to study the degradation of pollutant concentrations in the microgram to milligram per liter range using photocatalysts fixed to a planar surface within the reactor vessel. The test pollutant used was methyl orange. The in-stream sensor unit consists of a liquid flow cell with transparent windows, allowing the transmission of light from an LED to be monitored by a photodiode. The concentration of the pollutant is evaluated in real-time. The system is lightweight, cheap, portable, and flexible, ideal for laboratory or fieldwork use, and could be easily up-scaled and used for in-line quality control monitoring in a wastewater treatment plant.