Alaa El Din Mahmoud

Alexandria University | AU · Department of Environmental Sciences

A sustainable route to produce graphite oxide (GO) is presented using dry ball milling. The production method was based on pristine graphite flakes in a planetary ball mill. The prepared GO was characterized using UV-vis spectroscopy, BET surface area analysis, thermal analysis, SEM-EDX, TEM, XPS, elemental analysis and Raman spectroscopy. The degr...

Commercial and chemically synthesized graphite oxides were subjected to reduction processes using two plant extracts. Ficus carica (agricultural byproduct) and Phragmites australis (aquatic macrophyte) extracts were used as alternative reducing agents to conventional chemicals to prepare reduced graphene oxide (rGO). The raw and prepared materials...

The crisis of water scarcity has become one of the most urgent issues to be settled. It is still a challenge to develop a highly efficient water purification technology. In...

In this research, we adopt an ecofriendly and sustainable approach to compare the potentiality and efficiency of Phragmites australis aqueous extracts of two different organs to fabricate gold nanoparticles (AuNPs). The aqueous extracts of plant roots and rhizome were used as alternative reducing agents to conventional chemicals. Various Characteri...

Sustainable and low-cost technologies for carbon-based nanomaterials are required for wastewater treatment. Two graphitic precursors (graphite flakes and graphite powder) were tested to synthesize graphene-related materials using mechanochemical treatment. For comparison, chemical graphite oxide (GO imp) was synthesized. The pristine and final prod...

Although, different plant species were utilized for the fabrication of polymorphic, hexagonal, spherical, and nanoflower ZnO NPs with various diameters, few studies succeeded in synthesizing small diameter ZnO nanorods from plant extract at ambient temperature. This work sought to pioneer the ZnO NPs fabrication from the aqueous extract of a Medite...

Nanotechnology, with its critical influence across diverse disciplines, has increasingly drawn the attention of global researchers. This is predominantly due to the extraordinary potential that nanomaterials possess. Therefore, there is an utmost necessity to assimilate earlier studies and highlight the latest developments transpiring in the realm...

Pesticides are being employed for large-scale agricultural purposes, leading to global environmental issues. Organochlorine pesticides (dieldrin, DDT, and aldrin) are persistent due to their stable nature. Organochlorine pesticide (OCPs) residues present in various foodstuffs, blood serum, air, water, soil and sediments have generated a global surg...

Chitosan–walnut shells (Ch–W) composite was tested for the removal of levofloxacin from water. Various experimental factors were examined at different contact time intervals. The prepared composite exhibited maximum uptake capacity of 7.43 mg g ⁻¹ for levofloxacin with 0.5 g L ⁻¹ Ch–W dose at 45 min and pH = 7. Linear and nonlinear isotherm/kinetic...

In this work, cotton stalks AQ1 AQ2 (Gossypium barbadense) and date palm stones (Phoenix dactylifera) have been used as biosorbents to remove cadmium; Cd(II), lead; Pb(II), and zinc; Zn(II) from mono- and multi-solutions. Each biosorbent was characterized using SEM-EDX, and FT-IR. The findings showed that pH, dose, contact time, metal concentration...

In this work, cotton stalks (Gossypium barbadense) and date palm stones (Phoenix dactylifera) have been used as biosorbents to remove cadmium; Cd(II), lead; Pb(II), and zinc; Zn(II) from mono- and multi-solutions. Each biosorbent was characterized using SEM-EDX, and FT-IR. The findings showed that pH, dose, contact time, metal concentration, and pa...

Global demand for freshwater is rapidly escalating. It is highly essential to keep pace with the necessities of the increasing population. The effluents of wastewater are gradually identified as a reservoir of resources for energy generation and economic boom. Henceforth, most wastewater and sludge have great potential for reuse and recycling. The...

Introduction: One of the most important steps in risk assessment is the selection of assessment methods. Traditionally, when developing measures to reduce the level of occupational morbidity and industrial injuries, the results of an analysis of the causes, types of events and other factors that led to accidents are used. But such an approach does...

A facile approach to synthesize reduced graphene oxide (rGO) was investigated using three different extract concentrations of Tecoma stans leaves as reducing/capping agents. The surface morphology of the rGOs was examined by scanning electron microscopy with energy dispersive X-ray. The optimum prepared rGOs were confirmed with characteristic peaks...

The present era is considered the nanotech age. Nanomaterials have gained a great deal of importance in the field of technology, engineering, and medicine progression because of their tunable, physical, chemical, and biological properties rather than their bulk counterparts. Nanomaterials are classified based on their size, shape, composition, orig...

The increased demand for clean water especially in overpopulated countries is of great concern; thus, the development of eco-friendly and cost-effective techniques and materials that can remediate polluted water for possible reuse in agricultural purposes can offer a life-saving solution to improve human welfare, especially in view of climate chang...

This chapter aims to depict the need to turn our daily life practices into smart ones to improve the quality of life. Internet technologies and data processing have advanced to allow access to and interaction with different equipments all around the world. Therefore, the role of the Internet of Things (IoT) and sensors in this respect was discussed...

In the present study, a green, sustainable, simple and low-cost method was adopted for the synthesis of ZnO NPs, for the first time, using the aqueous extract of sea lavender, Limonium pruinosum (L.) Chaz., as a reducing, capping, and stabilizing agent. The obtained ZnO NPs were characterized using ultraviolet–visible spectroscopy (UV–VIS), Fourier...

The Middle East and North Africa (MENA) region1 is considered the most water-scarce region in the world. Currently, average renewable water resources availability per capita is one-tenth of the worldwide average. Twelve of the world’s 15 most water-stressed countries are in the MENA region. Increasing water scarcity and pollution is becoming a majo...

In this work, the synthesis of an rGO/nZVI composite was achieved for the first time using a simple and green procedure via Atriplex halimus leaves extract as a reducing and stabilizing agent to uphold the green chemistry principles such as less hazardous chemical synthesis. Several tools have been used to confirm the successful synthesis of the co...

Removal of phenol and bisphenol A by cost-effective graphite oxide was investigated in continuous column experiments. The parameters of the column process were investigated at different bed heights (0.50, 1.50, and 4.50 cm) and different flow rates (1.06, 0.50, and 0.25 mL min⁻¹). The initial concentration was fixed at 4.70 mg L⁻¹. The phenolic-com...

Microplastics are a silent threat that represent a high degree of danger to the environment in its different ecosystems and of course will also have an important impact on the health of living organisms. It is evident the need to have effective treatments for their treatment, however this is not a simple task, this as a result of the behavior of mi...

Pelletization of zeolitic materials is required to facilitate their practical industrial and commercial applications. Zeolite-NaA was synthesized from fly ash by fusion method and shaped into spherical granules. Bentonite, kaolinite and a combination of bentonite with kaolinite were tested as binder with different contents from 5 wt% to 10 wt%. The...

In the current work, various concentrations of the aqueous extract of Ziziphus spina-christi were employed for the phytoreduction of graphene oxide (GO). The green synthesized reduced graphene oxide (rGO) was characterized through UV-Vis spectrometry, Fourier transform infrared spectroscopy (FT-IR), scanning electron microscopy, and energy-dispersi...

The features of hospital wastewater (HWW) are identical to domestic wastewater in general, but a subset of HWW includes toxic, nonbiodegradable, infectious contaminants. The hospital effluents include a wide range of chemicals utilized in medical, laboratory, and study settings, as well as patient excreta. Antibiotics, lipid inhibitors, among other...

The features of hospital wastewater (HWW) are identical to domestic wastewater in general, but a subset of HWW includes toxic, nonbiodegradable, infectious contaminants. The hospital effluents include a wide range of chemicals utilized in medical, laboratory, and study settings, as well as patient excreta. Antibiotics, lipid inhibitors, among other...

TiO2 electrode material is a poor choice for supercapacitor electrodes because it has low conductivity, poor cyclic stability, and a low capacitance value. It is inevitable to enhance electrode materials of this kind by increasing the surface area and combining high electronic conductivity materials. In the current research work, it was proposed to...

The availability of freshwater is limited for agriculture systems across the globe. A fast-growing population demands need to enhance the food grain production from a limited natural resources. Therefore, researchers and policymakers have been emphasized on the production potential of agricultural crops in a sustainable manner. On the challenging s...

The outbreak of the human coronavirus disease 2019 (COVID-19) has induced an unprecedented increase in the use of several old and repurposed therapeutic drugs such as veterinary medicines, e.g. ivermectin, nonsteroidal anti-inflammatory drugs, protein and peptide therapeutics, disease-modifying anti-rheumatic drugs and antimalarial drugs, antiretro...

Nanocomposite term is broadly applied in material science. There are hundreds of various nanocomposites in literature. In this chapter, we selected titanium dioxide (TiO2) due to its structural, optical, and electrochemical properties. Therefore, we highlight on the basics of TiO2 nanocomposites and their recent applications. The optimized nanocomp...

Aquaculture has an important role in the global food market and aquatic organisms are a great reservoir of wholesome nourishment concomitantly addressing the issues of malnutrition in developing nations. The increased fish demand calls for exploring new avenues in aquaculture that include strategies for better aquaculture water management, suitable...

Aquatic macrophytes biomasses provide an opportunity of using their unwanted biomasses that cause ecological disturbance as green corrosion inhibitors. The extracts of water hyacinth (Eichhornia crassipes) and common reed (Phragmits australis) were prepared and assessed, for mild steel corrosion inhibition. The inhibitive effect has been investigat...

Forests have been undergoing through immense pressure due to the factors like human activities; procurement of forest products and climate change which is a major factor influencing this pressure buildup on forests. Climate change and temperature increase caused by anthropogenic activities have notably affected forests and wildlife on a global scal...

Forests have been undergoing through immense pressure due to the factors like human activities; procurement of forest products and climate change which is a major factor influencing this pressure buildup on forests. Climate change and temperature increase caused by anthropogenic activities have notably affected forests and wildlife on a global scal...

Currently, there are many membrane separation technologies that have been attracted growing interest in dyes removal from water streams and wastewater. In this chapter, we focus on nanofiltration (NF). In comparison with the available membrane techniques, NF is deemed to be the most promising technique due to its higher dye rejection, lower energy...

Soil plays a major role in determining the fate and dissemination of various pollutants such as persistent organic pollutants, antimicrobial resistance, rare earth metals, and microplastics. These pollutants pose ecological and human health risks which depend on their occurrence, identity, and physicochemical characteristics. Besides, they are pers...

Pesticides possess a role in controlling pests and insects that are attacking on crops. Various types of pesticides have been used to protect crops for centuries. However, the used chemical pesticides have a significant negative impact on the environmental components. This chapter summarizes the types of pesticides with their functions and their cl...

Recently, biopesticides have been aroused as an appropriate surrogate for the conventional synthetic pesticides which are deemed to be extremely perilous to our environment and human health. In this chapter, we highlight the basics of biopesticides, their different types, merits and disadvantages of using them, roles and applications of biopesticid...

Biochar, a by-product of pyrolysis can have extensive application prospects in the removal of different pollutants from wastewater. A wide variety of research has highlighted its ability to adsorb nutrients, heavy metal, organic pollutants, and complex mixtures from environmental matrices. Besides, BCs are cost-effective approaches for treatment of...

Preferred Citation ... .... ...... ...Valentina, Della, Corte. Giovanna, Del, Gaudio. Giuliana, Nevola. Krishnan, Umachandran. & Alaa, El, Din, Mahmoud. (2021). The role of the university in industry networking through academic spin-offs , Chapter 7 in Book, Dickson, Adom. Joshua, Ebere, Chukwuere. & Krishnan, Umachandran. (2021). Innovations in Te...

Forests have been undergoing through immense pressure due to the factors like human activities; procurement of forest products and climate change which is a major factor influencing this pressure buildup on forests. Climate change and temperature increase caused by anthropogenic activities have notably affected forests and wildlife on a global scal...

Forests have been undergoing through immense pressure due to the factors like human activities; procurement of forest products and climate change which is a major factor influencing this pressure buildup on forests. Climate change and temperature increase caused by anthropogenic activities have notably affected forests and wildlife on a global scal...

Scientific advancements from 2002–2020 for coronaviruses, i.e., SARS-CoV and MERS-CoV outbreaks, could lead towards a better understanding of the exposure to a health crisis. However, data on its transmission routes and persistence in the environment is still in need of the hour. In this review, we discuss the impact of environmental matrices on de...

The World Health Organization (WHO) has recently pronounced severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as a serious pandemic. It is, therefore, mandatory for public health authorities to have an environmental health management plan against COVID-19. This chapter summarizes articles and official reports related to environmental hea...

Environmentally friendly copper oxide nanoparticles (CuO NPs) were prepared with a green synthesis route without using hazardous chemicals. Hence, the extracts of mint leaves and orange peels were utilized as reducing agents to synthesize CuO NPs-1 and CuO NPs-2, respectively. The synthesized CuO NPs nanoparticles were characterized using scanning...

In this think about, assurance of lopinavir and ritonavir down to organic concentration level has been carried out. The assurance is based on expanding the selectivity of the spectrofluorimetric procedure by combining both subordinate and synchronous spectrofluorimetric approaches, which allow effective estimation of lopinavir at 248.8 nm and riton...

Nowadays, both developed and developing countries are more concerned about their sensitive natural resources, especially water resources. Therefore, conservation and sustainable utilization of available and limited water resources are a must. Globally, agriculture is the primary water-using sector. Usually, water and soil qualities are monitored an...

Wastes generated in large amounts have been recognized as sustainable sources of raw materials for the synthesis of adsorbents. The synthesis of zeolite through wastes recycling of two different ash sources (coal bottom ash and sugarcane waste ash) and industrial aluminum waste was evaluated. The molar ratio of SiO2/Al2O3 for zeolite 4A formation w...

TiO2-based materials have high strength and suitable electronic properties that make TiO2 widely used. In this research, Co-doped TiO2 thin films were created through the sol-gel spin-coating method. The deposition process was conducted 3 times to prepare 1 to 3 layers. The structural, morphological, and optical properties of Co-TiO2 thin films wer...

End 2019, the zoonotic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), named COVID-19 for coronavirus disease 2019, is the third adaptation of a contagious virus following the severe acute respiratory syndrome coronavirus in 2002, SARS-CoV, and the Middle East respiratory syndrome virus in 2012, MERS-CoV. COVID-19 is highly infectious...

End 2019, the zoonotic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), named COVID-19 for coronavirus disease 2019, is the third adaptation of a contagious virus following the severe acute respiratory syndrome coronavirus in 2002, SARS-CoV, and the Middle East respiratory syndrome virus in 2012, MERS-CoV. COVID-19 is highly infectious...

The zoonotic severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) at the end of 2019, also named COVID-19 for coronavirus disease 2019, is the third adaptation of a contagious virus following the severe acute respiratory syndrome coronavirus in 2002, SARS-CoV, and the Middle East respiratory syndrome virus in 2012, MERS-CoV. COVID-19 is hig...

Agroecosystems’ survival and productivity depend mainly on soil physical and chemical characteristics. One aspect that stresses plants is the soil contamination. Hence, phytoremediators, as plant species, do not only accumulate and/or degrade large amounts of various toxins but also develop strategies to tolerate and adapt to the noxious effects ex...

Nowadays, the society and the people’s livelihood are suffering because of the disturbance in the sustainability of ecosystems especially exploitation of water resources. Affecting one component of our ecosystems can affect the available resources, economic growth, and social aspects. Humanity needs to be guided successfully by taking sustainable a...

Fluoride ions present in drinking water are beneficial to human health when at proper concentration levels (0.5-1.5 mg L −1), but an excess intake of fluoride (>1.5 mg L −1) may pose several health problems. In this context, reducing high fluoride concentrations in water is a major worldwide challenge. The World Health Organization has recommended...

Increasing municipal solid waste (MSW) of different forms on account of rise in population has demonstrated the need of studying the seasonal characterization of municipal solid waste in residential area of Jammu city, India. This work analyses the characteristics of MSW for three diverse periods of a year (winter, spring and summer) collected dire...

Microalgae have higher nutritional value as they are abundant in protein, carbohydrates, lipids, and vitamins. Hence, they play several important roles in aquaculture and are known as a major source of the food chain for aquaculture organisms. Furthermore, they are also used indirectly or directly by humans as food supplements and medicines to impr...

Excellent Contribution from Dr. Alaa El Din Mahmoud to the journal as a reviewer.

In today's world, the problem of micro-pollutants penetration is particularly relevant. The protection of the aquatic environment deserves much attention since water is an exhaustible resource. This chapter focuses on the mechanisms by which pharmaceutical ingredients enter biotic systems. A detailed analysis of many scientific studies allowed isol...

At present, obesity is becoming the prime metabolic disease around the globe. One-fourth of the US adult population is reported to be above normal weight by 20%. Psychological and emotional complications equally contribute to obesity. Many obese people have more risk of psychiatric disorders such as depression and stress. Stress and obesity are two...

Since the onset of the COVID-19 epidemic, the world have had successful experiences as well as failures. This chapter states the soft method and herd immunity policy of some European countries (e.g. Sweden) in the early days of the epidemic, which failed. Most countries (e.g. Italy) that enacted a mandatory lockdown during the epidemic soon realize...

This research was undertaken to optimize the Se(IV) adsorption from aqueous solutions by Cyperus laevigatus biomass and green-synthesized nanosilver (AgNPs). A full 2^4 factorial experimental design was utilized to distinguish the effects of pH, initial metal concentration (Co), adsorbent dose concentration (C. laevigatus biomass, X 1 & AgNPs, X2)...

In this study, we investigated the modeling of chromium (Cr(VI)) removal using globally available plant biomass: Phragmites australis and Ziziphus spina-christi. Biosorption parameters were initial Cr(VI) concentration (50–800 mg L−1), contact time (1–180 min), adsorbent dose (0.25–2.0 g L−1), and pH (2–8) at agitation speed of 100 rpm. Based on th...

The adsorption–desorption behavior of methylene blue, acid orange 7, bisphenol A, and phenol on the synthesized graphene-based nanomaterials were studied. For this purpose, adsorption experiments were conducted in a batch setup and different parameters such as contact time, pH, adsorbent dose concentration, and initial micropollutant concentration...

The World Health Organization (WHO) has recently pronounced severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) as a serious pandemic. It is therefore mandatory for public health authorities to have an environmental health management plan against COVID-19. We summarise articles and official reports related to environmental health managemen...

Thank you Dr. Alaa El Din Mahmoud for helping 2 graduate students to develop their peer review skills in the Publons Academy. As a token of our appreciation, we’ve created an official, print-ready certificate in recognition of your mentorship.

Dr. Alaa El Din Mahmoud is selected to be “Bentham Science Ambassador” in “EGYPT".

This certificate is awarded to Alaa El Din Mahmoud As an acknowledgement his/her association with International Journal of Social and Scientific Research (IJSSR) as Reviewer and External Advisory board member (Domestic / International) For the period from 1 June 2019 to 30 May 2020

Phytoextraction or immobilization is more cost-effective in the field of removal of heavy metals from contaminated soils. These techniques have fewer side effects than physical and chemical techniques. It is the main and most promising technique, in situ or ex situ treatment/removal of contaminated soils, sediments and water. The use of plants as p...

The biosorption efficiency of Cd 2? using rice straw was investigated at room temperature (25 ± 4 °C), contact time (2 h) and agitation rate (5 Hz). Experiments studied the effect of three factors, biosorbent dose BD (0.1 and 0.5 g/L), pH (2 and 7) and initial Cd 2? concentration X (10 and 100 mg/L) at two levels ''low'' and ''high''. Results showe...

Due to their high cost and environmental impact, conventional treatment methodology of heavy metals polluted waters usually did not receive public acceptance. Recently, phytoremediation is considered as a cheaper and eco-friendly alternative treatment method. Phytoremediation includes two uptake processes: biosorption and bioaccumulation. This chap...

In this research, dead leaves of a common ornamental plant, Dracaena draca known also as dragon tree was used as a biosorbent for the removal of Cadmium (Cd²⁺) from aqueous solutions using a full 2³ factorial experimental design. Three factors were investigated at two different levels, metal ion concentration (X = 10 and 100 ppm), hydrogen ion conc...

The combined effects of metal ion concentration (X), hydrogen ion concentration (pH) and biomass dose (BD), on the biosorption of Cadmium Cd(II) were investigated. Two different plant biomasses; rice straw (Oryza sativa) and dragon tree leaves (Dracaena draca) were studied. The optimum conditions were found at (X)=10 ppm, (pH)=7 and (BD)=0.5 g. Und...