Gomaa A. M. Ali

Gomaa A. M. Ali
Al-Azhar University · Department of Chemistry

Ph.D. (Advanced Nanomaterials for Supercapacitors)
Book Editor: Waste Recycling Technologies for Nanomaterials Manufacturing https://www.springer.com/gp/book/9783030680305

About

196
Publications
217,940
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Introduction
Dr. Gomaa A.M. Ali works as Associate Professor at Chemistry Department, Faculty of Science, Al-Azhar University Egypt. He obtained his BSc and MSc in Physical Chemistry from Al-Azhar University, Faculty of Science. He was awarded his PhD in Advanced Nanomaterials for Energy Storage from UMP, Malaysia. He is a reviewer and editor for many journals. Email: gomaasanad@gmail.com
Additional affiliations
June 2016 - present
Al-Azhar University
Position
  • Professor
December 2012 - October 2015
Universiti Malaysia Pahang
Position
  • PhD Student
July 2007 - June 2016
Al-Azhar University
Position
  • Lecturer
Education
December 2012 - October 2015
Universiti Malaysia Pahang
Field of study
  • Advanced Nanomaterials for Energy
September 2009 - March 2012
Al-Azhar University
Field of study
  • Physical Chemistry (Nanomaterials)
September 2002 - June 2006
Al-Azhar University
Field of study
  • Chemistry

Publications

Publications (196)
Article
Full-text available
Very high supercapacitance values are obtained using catalyst free porous carbon nanoparticles (PCNs). The obtained PCNs have a porous structure with fine particles 35 nm in size. The specific capacitance of PCNs is 343Fg−1 and 309Fg−1 at 5mVs−1 and 0.06Ag−1, respectively. PCNs shows a high cyclic stability of about 90% and high columbic efficie...
Article
Full-text available
MnO2 nanoflower is prepared by electrochemical conversion of Mn3O4 obtained by heat treatment of spent zinc-carbon batteries cathode powder. The heat treated and converted powders were characterized by TGA, XRD, FTIR, FESEM and TEM techniques. XRD analyses show formation of Mn3O4 and MnO2 phases for the heat treated and converted powders, respectiv...
Data
MnO2 nanoflower is prepared by electrochemical conversion of Mn3O4 obtained by heat treatment of spent zinc‒carbon batteries cathode powder. The heat treated and converted powders were characterized by TGA, XRD, FTIR, FESEM and TEM techniques. XRD analyses show formation of Mn3O4 and MnO2 phases for the heat treated and converted powders, respectiv...
Article
Full-text available
Carbon nanospheres derived from natural source using a green approach were reported. Lablab Purpureus seeds were pyrolyzed at different temperatures, to produce carbon nanospheres for supercapacitor electrode materials. The synthesized carbon nanospheres were analyzed using SEM, TEM, FTIR, TGA, Raman Spectroscopy, BET and XRD. They were later fabri...
Article
Full-text available
Electrochemical materials, namely MnO2 and reduced graphene oxide (rGO), have been prepared in diverse morphologies (nanoflowers and nanosheets, respectively). Different physical and chemical characterizations were conducted to investigate the material structure and morphology. Electrochemical properties of these materials have been studied compreh...
Article
Full-text available
Glycopolymer materials have emerged as a significant biopolymer class that has piqued the scientific community's attention due to their potential applications. Recently, they have been found to be a unique synthetic biomaterial; glycopolymer materials have also been used for various applications, including direct therapeutic methods, medical adhesi...
Book
Full-text available
This Handbook discusses the recent advances in biodegradation technologies and highlights emerging sustainable materials, including environmentally friendly nano-based materials for replacing plastics. This Handbook is useful to scientists, engineers, biologists, medical doctors and provides alternative eco-friendly materials to replace the ordinar...
Article
Full-text available
Thermal remediation technologies are fast and effective tools for the remediation of contaminated soils and sediments. Nevertheless, the high energy consumption and the effect of high temperature on the soil properties may hinder the wide applications of thermal remediation methods. This review highlights the recent studies focused on thermal remed...
Article
Full-text available
Agriculture and industrial wastes (AIWs) have attracted much attention because of their huge environmental, economic, and social impacts. AIWs have been considered a crucial link of a closed-loop for the fabrication of nanomaterials and composites wherein they replace traditional resources with sustainable waste in waste management. In this context...
Article
Full-text available
In this study, we used density functional theory (DFT) and natural bond orbital (NBO) analysis to determine the structural, electronic, reactivity, and conformational features of 2,5,5-trimethyl-1,3,2-di-heteroatom (X) phosphinane-2-sulfide derivatives (X = O (compound 1), S (compound 2), and Se (compound 3)). We discovered that the features improv...
Article
Full-text available
Agriculture and industrial wastes (AIWs) have attracted much attention because of their huge environmental, economic, and social impacts. AIWs have been considered a crucial link of a closed-loop for the fabrication of nanomaterials and composites wherein they replace traditional resources with sustainable waste in waste management. In this context...
Article
Full-text available
There is a wide range of refractory and electrical applications where magnesia is firmly established. In the current manuscript, the effect of MnO doping on linear and nonlinear optical traits of MgO was investigated. (MgO)1-x(MnO)x(x=0,0.05,0.1) nanocomposites were synthesized via a green method using Starch powder. The XRD results showed that all...
Article
Full-text available
As in many countries worldwide, deterioration of quality of water in Morocco’s natural reserves continues, such that an inventory of qualities of these reserves has become necessary. Based on statistical analyses of the data collected by measuring nineteen physicochemical variables, and applying an index, the comprehensive pollution index, to those...
Chapter
Clean and renewable energy production techniques are still a big challenge to be met in the coming generations’ required energy. Dye-sensitized solar cells (DSSCs) and perovskite solar cells (PSCs) have significant interest owing to their outstanding total performance and relatively lower cost than silicon-based solar cells. The design of the struc...
Chapter
Full-text available
Polymer materials have attracted the interest of researchers in recent years as electrode materials and electrolytes for a variety of energy applications such as supercapacitors, batteries, fuel cells, solar cells, and electrochromic devices. Over the last few decades, there has been a great deal of research into the potential applications of these...
Article
Full-text available
Wet chemistry was used to produce copper oxide nanoparticles (CuO NPs). The results indicated that most nanoparticles were bacillus shaped and relatively uniform in size (less than 30 nm). The effect of synthesized CuO NPs on wheat (Triticum aestivum L.) germination and growth parameters was studied and compared to bulk Cu. The results showed that...
Article
Full-text available
A membrane composed of polyethylene terephthalate nanofiber and multi‐walled carbon nanotubes (PET NF‐MWCNTs) composite is used to adsorb methylene blue (MB) dye from an aqueous solution. Scanning electron microscopy, Fourier transform infrared spectroscopy, and X-ray diffraction techniques are employed to study the surface properties of the adsorb...
Article
Full-text available
This study aims to synthesize a new series of nanolayered double hydroxides (LDHs) containing zinc, cobalt, aluminum, and iron and study the influence of divalent cations (Zn2+, Co2+) in the composition on LDHs structure. The LDHs samples were prepared by coprecipitation by controlling the pH of the solution. Various analytical techniques have been...
Article
This study focuses on detecting and evaluating the adulteration in nut oil, which can cause health and food dangers. The two adulterants used during this study are cheaper vegetable oils and present a similar property with walnut oil, sunflower oil with a falsification percentage of 5.80–31.95%, and rapeseed oil with 4.33–29.37%. This adulteration...
Article
This study reports experimental analyses of adsorption thermodynamics using the polymeric adsorbent surface, polyethersulfone (PES), with different molar ratios of ZnO nanoparticles. Fourier transform infrared (FTIR), X‐ray diffraction (XRD), and field emission scanning electron microscopy (FESEM) were performed to study the adsorbent structure and...
Article
Full-text available
This review provides a general overview of the application of chemical oxidation to hydrophobic contaminants in the form of non-aqueous phase liquids (NAPLs). Six types of chemical oxidation processes, three conventional processes: activated persulfate, permanganate, and ozonation, along with three advanced oxidation processes (AOPs): Fenton proces...
Article
Full-text available
A study was attempted to assess the infiltration characteristics of major soils of Sohag governorate, Egypt. Twelve soil profiles were exposed and morphologically examined to represent the soils of the study area. Horizon-wise soil samples were taken and analyzed for physical and chemical properties. The infiltration field measurements were made fo...
Article
Full-text available
Environmental heavy metal ions (HMIs) accumulate in living organisms and cause various diseases. Metal-organic frameworks (MOFs) have proven to be promising and effective materials for removing heavy metal ions from contaminated water because of their high porosity, remarkable physical and chemical properties, and high specific surface area. MOFs a...
Article
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Pharmaceutical contamination threatens both humans and the environment, and several technologies have been adapted for the removal of pharmaceuticals. The coagulation-flocculation process demonstrates a feasible solution for pharmaceutical removal. However, the chemical coagulation process has its drawbacks, such as excessive and toxic sludge produ...
Article
Full-text available
Pharmaceutical contamination threatens both humans and the environment, and several technologies have been adapted for the removal of pharmaceuticals. The coagulation-flocculation process demonstrates a feasible solution for pharmaceutical removal. However, the chemical coagulation process has its drawbacks, such as excessive and toxic sludge produ...
Article
Full-text available
This work describes the hydroxyapatite nanoparticle (HAP) preparation from eggshell waste and their application as an adsorbent for Cephalexin (Ceph) antibiotic removal from aqueous solutions. Chemical precipitation with phosphoric acid was used to evaluate the feasibility of calcium oxide for HAP preparation. The structural properties of HAP were...
Article
Full-text available
Composting chicken manure causes negative impacts on environmental ecosystem by increasing ammonia (NH3) emissions. Split addition of maize straw-derived biochar (Bi) during composting of chicken manure may promote the composting process, increase the quality of produced compost and reduce NH3 volatilization. To build composting piles, fresh chicke...
Article
Full-text available
Excessive levels of dyes and heavy metals in water sources have long been a source of concern, posing significant environmental and public health threats. However, adsorption is a feasible technique for removing dye contaminants and heavy metals from water due to its high efficiency, cost-effectiveness, and easy operation. Numerous researchers in b...
Article
Tungsten oxide semiconductor (WO3) modified using transition metals (Ni, Fe, and Zn) was synthesized via microwave-assisted solution combustion method. Ni, Fe, and Zn were doped in the WO3 structure to improve the photocatalytic efficiency. The prepared powders were characterized by X-ray diffraction, scanning electron microscopy, and energy-disper...
Article
Full-text available
This study reports a one-step process to produce single-stranded deoxyribonucleic acid (ssDNA) functionalized reduced graphene oxide (ssDNA/rGO). The ssDNA acts as a reducing agent for the reduction of GO into rGO and simultaneously performs functionalization onto rGO, which is confirmed by spectroscopic and microscopic analyses. Such reduction cap...
Article
Full-text available
Rice hulls, a harmful biowaste, were used to produce nanosized activated carbon (RHAC) by combustion and phosphoric acid treatment. The developed RHAC was characterised using various structural and morphological techniques (scanning electron microscopy, X-ray diffraction, Fourier transform infrared spectroscopy and nitrogen (N2) adsorption). The pr...
Article
Full-text available
Dendritic polymers (dendrimers and hyperbranched polymers) are becoming increasingly popular due to their vast range of uses. Due to their distinctive and novel qualities, they have demonstrated a strong interest. Since its discovery, dendritic polymers have become a potential material for many research applications, ranging from biomedical and tis...
Article
Full-text available
Nanoscience enables researchers to develop new and cost-effective nanomaterials for energy, healthcare, and medical applications. Silver nanoparticles (Ag NPs) are currently increasingly synthesized for their superior physicochemical and electronic properties. Good knowledge of these characteristics allows the development of applications in all sen...
Article
Full-text available
SARS-CoV-2 attacked more than 120 million people and causing the death of more than two million worldwide. Because of the crucial role of ACE2 protein as an entry for SRS-COV2, we investigated the protein's sequence in seventy-three living species. Data analysis of protein sequences, ACE2 mRNA, expression analysis, and protein interaction for human...
Article
Full-text available
Nanotechnology has been widely used in many fields including in soil and groundwater remediation. Nanoremediation has emerged as an effective, rapid, and efficient technology for soil and groundwater contaminated with petroleum pollutants and heavy metals. This review provides an overview of the application of nanomaterials for environmental cleanu...
Technical Report
Full-text available
Nanoremediation technologies involve the use of reactive NPs for the conversion and detoxification of contaminants. The main mechanisms for remediation by NPs are catalysis and chemical reduction. In addition, adsorption is another removal mechanism facilitated by the NPs since NPs have high surface-area-to-mass ratios and different distribution of...
Article
Full-text available
Highly efficient Cu-doped TiO2 photocatalysts (CTO) with variation in Cu concentration (4 to 16 wt.%) were prepared via a modified sol-gel technique. X-ray diffraction (XRD) data indicate a pure anatase structure with a small crystallite size of 22.16 nm obtained for CTO-12 (12 wt.% Cu). The average crystallite size and energy bandgap with variatio...
Article
Full-text available
Mesoporous carbon nanospheres are produced from biowaste, Allium cepa peels, well known as “onion” dry peels using the catalyst-free pyrolysis method. The synthesis process involves an unusable bio-precursor that is accumulated in millions of tons per year. The obtained materials show nanosphere morphology with particles size of 63–66 nm and surfac...
Article
Full-text available
A facile approach is reported to produce reduced graphene oxide (rGO) aerogel. The proposed approach involves the reduction of GO by utilizing the reduction capability of carbonic acid in soft drinks. The presence of carbonic acid reduces the oxygen functionalities in GO to produce rGO and simultaneously provides carboxyl groups for hydrogen bondin...
Article
Full-text available
This work reports on the formation of rGO/ssDNA composite by stabilization of rGO sheets in an aqueous solution containing ssDNA extracted from baker’s yeast culture. The as-formed rGO/ssDNA composite was verified using spectroscopic and microscopic techniques, including Fourier transform infrared (FTIR), Raman, and photoluminescence (PL) spectrosc...
Article
Full-text available
In this study, silver/silver oxide nanoparticles (Ag/Ag2O NPs) were successfully biosynthesized using Phoenix dactylifera L. aqueous leaves extract. The effect of different plant extract/precursor contractions (volume ratio, v/v%) on Ag/Ag2O NP formation, their optical properties, and photocatalytic activity towards azo dye degradation, i.e., Congo...
Article
Full-text available
The present work investigates some triazene compound's anti-corrosion properties as novel corrosive inhibitors by experimental and theoretical studies. Different electrochemical and morphological techniques were used to study the compound's corrosion inhibition. The experiments were performed in 1 M H2SO4 at different inhibitor concentrations and t...
Chapter
Full-text available
The exploitation of spent battery and electronic waste for the recovery and preparation of metal oxide nanomaterials (MONMs) is vital for technology, economical, sustainable, and environmental research. The recovery of MONMs through recycling waste materials reduces environmental pollutions and saves the primary resources due to industrial consumpt...
Chapter
Full-text available
Nowadays, nanomaterials are used in many areas and applications, including medicine, energy, and environment. The initial cost of the nanomaterials is high; thus, finding another cheap source is required. In addition, waste accumulation is a serious environmental problem. Therefore, recycling waste into valuable nanomaterials is highly required, wh...
Chapter
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This chapter introduces the reader to utilizing plastic wastes as a precursor for the fabrication of carbon nanotubes and the efforts done for this purpose. In addition, it provides a brief introduction to the topic, and an overview of the fundamental concepts of carbon nanotubes, including structure, types, and growth mechanism, is given. The conv...
Chapter
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Nowadays, humankind is in urgent need of energy generation and storage systems. The supercapacitor is one of the essential types of storage systems. The high cost of obtaining capacitor electrodes is the reason behind the researchers’ attempts to find low-cost sources. The need for the development of efficient energy storage systems is paramount in...
Chapter
Full-text available
The energy derived from the solar activity is a source that can help solve the high demand that humanity presents in terms of thermal energy, but shows disadvantages due to the changes in prolonged periods and to the variability in very short times. The fundamental thing to take advantage of the higher amount of thermal energy derived from the sun...
Chapter
Full-text available
The low atomic number of carbons, combined with the half-full shell of valence electrons and medium electronegativity, provide an important basis for strong covalent bonding to other carbon atoms and other elements. Moreover, this supports the wide differences of carbon-containing natural atoms, counting the atoms of life. Recent breakthroughs in c...
Chapter
Full-text available
Electrospun nanofibers are a class of nanomaterials appropriate for various applications, such as smart films, filter membranes, catalytic supports, energy generation modules, conversion and storage, photonic and electronic sensors, biomedical scaffolding, and other devices. Electrospinning is a flexible and versatile technique for processing nanof...
Chapter
Full-text available
Energy storage electrode materials suffer from high-cost production. For example, cobalt oxide price was increased from 20 to 60 USD per kg in 1998 and 2017, respectively. Consequently, seeking low-cost production methods is essential. Over the years, the ownership of electronic devices has transformed from a human luxury to basic requirements. Fol...
Technical Report
Full-text available
Wearing face masks, use of respirators, social distancing, and practicing personal hygiene are all measures to prevent the spread of coronavirus disease (COVID-19). This pandemic has revealed the deficiency of face masks and respirators across the world. Therefore, significant efforts are needed to develop air filtration and purification technologi...
Article
Wearing face masks, use of respirators, social distancing, and practicing personal hygiene are all measures to prevent the spread of coronavirus disease (COVID-19). This pandemic has revealed the deficiency of face masks and respirators across the world. Therefore, significant efforts are needed to develop air filtration and purification technologi...
Article
Green biosynthesis of Fe 3 O 4 nanoparticles (NPs) using plant extract is desired, as the plant extract is safe for humans and the environment. In this study, magnetite Fe 3 O 4 NPs were greenly prepared using Punica granatum L. fruit peel extract as a reducing and capping agent. The effect of iron precursor contraction (0.01–0.1 M, FeCl 3 ) was st...
Article
Full-text available
Green biosynthesis of Fe3O4 nanoparticles (NPs) using plant extract is desired, as the plant extract is safe for humans and the environment. In this study, magnetite Fe3O4 NPs were greenly prepared using Punica granatum L. fruit peel extract as a reducing and capping agent. The effect of iron precursor contraction (0.01–0.1 M, FeCl3) was studied. T...
Presentation
Scientific Research & International Publication Egyptian Young Academy of Sciences: EYAS ASRT: البحث العلمى والنشر الدولى أكاديمية الشباب المصرية للعلوم : إياس: أكاديمية البحث العلمي والتكنولوجيا المصرية Video on Youtube [https://www.youtube.com/watch?v=lZ6XzDS0UjE&t=827s&ab_channel=GomaaSanad%3AScienceandTechnology]
Article
Full-text available
Wearing face masks, use of respirators, social distancing, and practicing personal hygiene are all measures to prevent the spread of the coronavirus disease (COVID-19). This pandemic has revealed the deficiency of face masks and respirators across the world. Therefore, significant efforts are needed to develop air filtration and purification techno...
Article
Full-text available
This study aims to create a model of oleaster oil simply and reliably to detect adulteration, which presents a large danger that attacks the food sector and human health. For this reason, a study to detect the falsification of oleaster oil was carried out by Fourier-Transform Infrared Spectroscopy FTIR and chemometric method. The experimental sampl...
Article
Full-text available
Reduce graphene oxide (rGO) aerogels with different precursor graphene oxide sheet sizes are synthesized using l-ascorbic acid reduction followed by an ambient pressure drying method. The sheet sizes determine the oxygen functionality content during aerogel formation, which subsequently affect its structural properties. The optimized sheet size ren...
Chapter
Full-text available
The utilization of smart materials in electronic devices has received much attention recently. This chapter reviews the latest research trends of smart electronic materials. It focuses on their mechanisms and performances – With a particular interest in their contributions in batteries, supercapacitors, sensors, actuators, electronic textile, and w...
Book
Full-text available
This book discusses the recent advances in the wastes recycling technologies to provide low-cost and alternative ways for nanomaterials production. It shows how carbon nanomaterials can be synthesized from different waste sources such as banana fibers, argan (Argania spinosa) seed shells, corn grains, camellia oleifera shell, sugar cane bagasse, oi...
Chapter
High-quality water is one of the most important challenges around the world. Conventional techniques of wastewater treatment need to be developed. Therefore, finding sustainable, environmentally friendly, and efficient treatment techniques is required. In this regard, due to the extraordinary potential of nanotechnology resulted from nanoscale size...
Article
Full-text available
W18O49 nanowires (NWs)-reduced graphene oxide (rGO) nanocomposite is examined as a new active material for supercapacitors electrode, which reveals its high specific capacitance and excellent rate performance in AlCl3 aqueous electrolyte. Electrochemical studies show that the presence of rGO enhances Al3+ ions diffusion in the nanocomposite, thus p...
Article
Full-text available
Cancer is one of the most dangerous diseases as a result of its characteristic features such as indefinite growth of cells, infringement of healthy tissues, and also metastasis. In recent years, a wide range of new ways to treat cancer has been used. Dendrimer is a category of highly branched 3D structures that has multiple surface functional group...
Article
Full-text available
Herein, a novel inhibitor for the mild steel corrosion in an acidic environment based on azopyrazole-benzenesulfonamide derivative, namely 4-(2-(3-methyl-5-oxo-1-tosyl-1H-pyrazol-4(5H)-ylidene) hydrazinyl)-N-(pyrimidin-2-yl) benzenesulfona-mide, is investigated. The electrochemical tests were performed using open-circuit potential, potentiodynamic...
Presentation
Keynote Lecture: The 3rd International Conference on Chemistry and Energy Research (ICCER2020)
Presentation
Keynote Lecture: Recycling of Spent Batteries: Waste to Wealth
Presentation
Keynote Lecture: 34th Eg-MRS: Recycling Nanomaterials for Supercapacitors 34th International Conference organized by The Egyptian Materials Research Society (Eg-MRS) and the British University in Egypt (BUE), 29-30 August 2020.