Aseel B Al-Zubaidi

University of Technology, Iraq · Department of Materials Engineering

transition electron microscope

In the context of recycling and reusing textile wastewater, the quest for a membrane possessing superior efficiency has garnered considerable attention. This research endeavors to advance this objective by introducing a novel asymmetric ultrafiltration membrane constructed from PVDF (Polyvinylidene Fluoride) modified with MXene through bulk modific...

Purpose-The number of people with special needs, including citizens and military personnel, has increased as a result of terrorist attacks and challenging conditions in Iraq and other countries. With almost 80% of the world's amputees having below-the-knee amputations, Iraq has become a global leader in the population of amputees. Important compone...

In this study, Zinc oxide nanoparticles are synthesized by the sol-gel method. The as-synthesized nanoparticles are characterized by X-Ray Diffraction, Scanning Electronic Microscope, Transmission Electronic Microscope, Atomic Force Microscope, Fourier-Transform InfraRed and Ultraviolet-Visible spectroscopies. In a structure-properties relationship...

Different countries have been encountering significant obstacles in the disposal of agro-wastes in landfills, with a recent increase in landfill sites receiving inadequate or no treatment. Moreover, in addition to high disposal costs, several factors related to landfills pose a significant threat to human health and ecosystems-examples include leac...

Membrane fouling remains a major obstacle to ultrafiltration. Due to their effectiveness and minimal energy demand, membranes have been extensively employed in water treatment. To improve the antifouling property of the PVDF membrane, a composite ultrafiltration membrane was created employing the in-situ embedment approach throughout the phase inve...

The influence of different irradiations on the molecular structure, optical, morphological and antimicrobial activity was investigated for nickel ferrite nanoparticles synthesized using the coprecipitation method. The effect of different irradiations on the characterization of prepared samples has been studied using X-ray diffraction, transmission...

Iraqi Metakaolin was used to produce geopolymer mortar and concrete with high specifications. To convert Kaolin to Metakaolin, the De-hydroxylation process was carried out by burning Kaolin at 700°C. Metakaolin was crushed and ground by a ball mill to obtain the Metakaolin at the nanoscale. The large specific surface area of total nanoparticles giv...

Zinc oxide nanoparticles (NPs) are synthesized by the sol–gel method for optoelectronics, photonic, and medical applications. The as-synthesized NPs are irradiated with lasers with wavelengths of 1064 nm and 532 nm in an attempt to improve the particles' structural and functional properties. The NPs are characterized by means of X-ray diffraction,...

Due to the fact that natural biomaterials are becoming more and more interesting, they are environmentally friendly, have higher biocompatibility, and cost less. Extraction of natural Calcium carbonate from eggshells was studied using calcination process at 250c, as a reinforcement added to aloe Vera gel with alginate to prepare Natural Hybrid comp...

Nowadays, the trend to benefit from environmentally friendly waste and recycle it instead of incineration processes that can cause pollution in the environment to have a clean and green environment that is free from pollution and can work for a long time without consumption and damage. This study is designed to manufacture prosthetics limbs from PM...

Preparation of tungsten oxide (WO 2.89) NPs immobilized PES matrix.  Antifouling performance was evaluated against tinzaparin sodium.  Further enhancement was noticed after exposing the membranes to UV irradiation. One of the polymeric membranes' main limitations is their susceptibility to fouling, lowering the membrane's performance with time. T...

The characteristics of self-healing related to N-type cement mortars, the addition of human pathological bacteria to enhance mortar durability, and compressive strength thus reducing maintenance cost and manpower after crack initiation. Bacteria have been examined by using two types of biological agents: Proteus mirabilis and E. Coli bacteria. Mort...

The characteristics of self-healing related to N-type cement mortars, the addition of human pathological bacteria to enhance mortar durability, and compressive strength thus reducing maintenance cost and manpower after crack initiation. Bacteria have been examined by using two types of biological agents: Proteus mirabilis and E. Coli bacteria. Mort...

Merging the photocatalytic activity of nanomaterials with membrane technology is an auspicious approach towards diminishing membrane fouling consequences. Herein, 0.1 to 2 wt.% of Tungsten Oxide (WO2.89) were harnessed to synthesis novel mixed matrix nanocomposite ultrafiltration membranes via the classical noninduced phase separation. A systematic...

Cement mortar one of the most important cementation materials in construction building, but the crack formation when cement mortar under service inherent weakness of mortar. Thus, in this investigate paper need fix those issue Eventually, by using two types of bacteria (Proteus mirabilis & E.coli) as addition materials into type (N) of cement morta...

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Chitosan/polyvinyl alcohol cross-linked with genipin at different concentrations were utilized to synthesize films by solvent casting for bone tissue engineering applications. Fourier transform infrared spectroscopy (FTIR), swelling degree, degradation rate, contact angle, tensile strength was investigated. The results revealed a decrease in swelli...

Bone tissue defects and diseases due to the consequence of trauma, injury, infections and degenerative bone loss are of major concern in the field of human health. Bone tissue engineering has emerged as an alternative strategy to repair or replace damaged bone tissue through the development of a biologically active substitute so called tissue engin...

This work reports on the incorporation of Flint and Kaolin rocks powders in the cement mortar in an attempt to improve its mechanical properties and produce an eco-friendly mortar. Flint and Kaolin powders are prepared by dry mechanical milling. The two powders are added separately to the mortars substituting cement partially. The two powders are f...

Chitosan/polyvinyl alcohol cross-linked with genipin at different concentrations were utilized to synthesize films by solvent casting for bone tissue engineering applications. Fourier transform infrared spectroscopy (FTIR), swelling degree, degradation rate, contact angle, tensile strength was investigated. The results revealed a decrease in swelli...

This research studies using wastepaper as a replacement material in concrete blends. A concrete mollified wastepaper created via adding wastepaper as partial replacement through cement’s weight. Furthermore, it might be considered as ecofriendly , construction material was reduced amount of wastepaper . Inherent strength was gained because of the p...

The presented study provides the results related to examining using the wastepaper as additional materials with regard to the concrete mixes which will be utilized for construction purposes, thus it should be indicated that the resulting has suitable mechanical strength. Furthermore, the wastepaper fibers have been applied in 3 percentages which ar...

In this work, incorporation of glass powders from three different origins (window sheet glass powder, green-colored and brown-colored glass powders) is accomplished in an attempt to reduce the water absorption property and improve the hardness and compression strength of the cement mortars. Furthermore, the effect of Sikafloor 161 Polyurethane poly...

Use nanohydroxyapatite into the polymeric matrix as bioactive material for bone tissue engineering has enormous therapeutic potential because beneficial properties biocompatibility, biodegradability, and consider a major inorganic constituent of the bone matrix. The blended films of Chitosan and Polyvinyl alcohol with Genipin as cross-link agent we...

In this paper, the biological and physical properties of chitosan, a potential polysaccharide resource, were investigated. The proposed film was synthesised by mixing chitosan (CS) solution and polyvinyl alcohol (PVA) using solvent casting. The modified chitosan/PVA films were then subjected to analysis by Fourier transform infrared spectroscopy (F...

Abstract-Paraffin wax is an important material used in thermal energy storage (TES) systems. The thermal conductivity of the material is an important parameter that decides the degree of exploitation of the paraffin wax in TES systems. The thermal conductivity is improved by the addition of silicon oxide nanoparticles (1%, 2%, 4%, and 6%) to the pa...

In this work, the most important environmental pollution problems were through the preparation of environmentally ecofriendly green cement consisting of natural waste rice husk ash (RHA) in various additives (0.0.25,0.5,0.75.1.1.5%). The mechanical properties of the specimens were measured and the percentage of increase in natural waste (ash rice h...

In this work, the most important environmental pollution problems were through the preparation of environmentally ecofriendly green cement consisting of natural waste rice husk ash (RHA) in various additives (0.0.25,0.5,0.75.1.1.5%). The mechanical properties of the specimens were measured and the percentage of increase in natural waste (ash rice h...

Polymer - based components are exposed to many damage influences during their lifetime. One of these influences erosion, which is a crucial problem in many industrial applications such as pipes, boats, sewage…etc.Due to impingements of solid particles being suspended in the fluids flowing at high velocity. This work reports an investigation of eros...

SiO2 and nano CaCO3 particles, micro SiO2, micro CaCO3, recycled silica gel (beads and powder) and limestone. All replacements were used with four different contents of 1%, 2%, 3% and 4% by weight. The results showed that the workability of fresh concrete was decreased by increasing the content of nano particles and micro particles. It is concluded...

In this paper, the biological and physical properties of chitosan, a potential polysaccharide resource, were investigated. The proposed film was synthesised by mixing chitosan (CS) solution and polyvinyl alcohol (PVA) using solvent casting. The modified chitosan/PVA films were then subjected to analysis by Fourier transform infrared spectroscopy (F...

there are many ways to recycle the Wests materials in many types,we divided in seven parts

first lab semester for test and characterization materials engineering

test and characterization second semester lab for materials engineering

In this work, the most important environmental pollution problems were through the preparation of environmentally ecofriendly green cement consisting of natural waste rice husk ash (RHA) in various additives (0.0.25,0.5,0.75.1.1.5%). The mechanical properties of the specimens were measured and the percentage of increase in natural waste (ash rice h...

In this research, smart mortar was fabricated with metallic powders recycled additives from industrial sources to increase the electrical conductivity of the cement mortar and hence, to increase its use in the smart applications like electromagnetic shielding and solar cells. The Ordinary Portland Cement (OPC) was adopted in order to prepare the co...

In this study, the effect of (1%, 2%, 3%, 4% weight fraction) waste silica gel reinforced with (3% weight fraction) carbon fiber into unsaturated polyester resin was investigated on the tensile properties, impact strength and shore D hardness. These samples of polymeric composite materials were manufactured by (Hand-lay-up) method. The average part...

In this study, the effect of (1%, 2%, 3%, 4% weight fraction) waste silica gel reinforced with (3% weight fraction) carbon fiber into unsaturated polyester resin was investigated on the tensile properties, impact strength and shore D hardness. These samples of polymeric composite materials were manufactured by (Hand-lay-up) method. The average part...

Manufacturing of building materials with unique properties is one of the most important key-parameters in the development of construction engineering and building materials. The development in the nanomaterials and nanotechnology can be utilized in this field. In this paper, the production of eco-friendly, low water absorption and self-cleaning cem...

In this study sewage sludge ash (SSA) particles were used as filler in the polyester resin to fabricate particulate composites with various filler contents of 0, 1, 2, 3, 4, 5, 6 and 7 wt%. The tensile, flexural, impact, hardness, chemical composition and scanning electron microscope tests wear conducted on the samples according to ASTM standards....

In this research, investigate the effect of weight fraction (1%, 2%, 3%, 4%) industrial waste (silica gel particles) as fillers with 3% carbon fiber in unsaturated polyester resins on some properties such as flexural strength, flexural modulus, compressive strength, and thermal conductivity. Specimens composite was conducted by using the hand lay-u...

Chitosan has adaptable applications in skin, cartilage and bone tissue engineering. This study was concentrated on the enzymatic degradation of chitosan. The degradation was carried out during four weeks of incubation at (37 °C) temperature in media phosphate buffer saline solution containing lysozyme. The samples were characterized using Fourier t...

In this research, investigate the effect of weight fraction (1%, 2%, 3%, 4%) industrial waste (silica gel particles) as fillers with 3% carbon fiber in unsaturated polyester resins on some properties such as flexural strength, flexural modulus, compressive strength, and thermal conductivity. Specimens composite was conducted by using the hand lay-u...

characterization and test of nano materials

charactrization of nano materials

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This thesis aims to study the effect of using various types of materials as partial replacement of cement on the properties of high strength concrete. Nano SiO2, Nano CaCO3, micro SiO2, micro CaCO3, recycled silica gel (beads and powder) and limestone were used as replacements, all replacements were used with four different contents of 1%, 2%, 3% a...

Abstract Iraq is facing a serious challenge in disposing of waste in many landfills throughout the country. Potential environmental troubles, in high disposal costs are being resulted by the landfill situation. In this research, the utilization of wastepaper that was taken from schools , libraries and paper shredder machine in concrete mixes to be...

This work investigates the utilization of waste papers (natural and industrial) i.e (citrus aurantium and papers A4) mortars containing specified contents 0.5%, 1%, 1.5% of waste papers were prepared and cured. Mechanical characteristics such as compressive and bending strengths, hardness and water absorption were determined for the mortars mixed w...

High‐energy ball milling is performed on Li1.1Mn1.95Fe0.05O4 spinel material, synthesized by sol‐gel method for lithium rechargeable battery, at different durations to obtain nanopowders of finite size distributions. The powders are investigated by means of scanning electron microscopy, particle size distribution, and X‐ray diffraction (XRD) measur...

Key words This work investigates the utilization of waste papers (natural and industrial) i.e (citrus aurantium and papers A4) mortars containing specified contents 0.5%, 1%, 1.5% of waste papers were prepared and cured. Mechanical characteristics such as compressive and bending strengths, hardness and water absorption were determined for the morta...

The Waste materials need to be recycled in some method to avoid ground contamination. One of the methods to reuse such materials is to include in concrete materials. This will decrease pollution and encourage sustainable development in environment conservation. In this work ash wastepaper was partially replaced as 0%, 5%, 7% and 10% in place of cem...

This study investigated the effect of using nano CaCO3 and nano SiO2 as partial replacement of cement on the mechanical properties, durability and flowability of concrete. Nano materials were added in four different dosages of 1%, 2%, 3% and 4% by weight of cement in concrete mixture. Mechanical properties of hardened concrete (compressive strength...

The objective of this research is to prepare and study (Glass Fiber / Epoxy) with nano and micro Titanium dioxide (TiO2) composites with different volume percentage of nano and micro TiO2 powder of 2%, 4%, and 6% volume fraction. Atomic force microscopy techniques was used to measure the grain size of nano TiO2 powder (average diameter was 46 nm) a...

The term recycling is widely understood as recycling at the source or curbside recycling, this is where consumers separate recyclable material after use and deliver to municipalities or recycling facility “rather material recovery facility - MRF”, however the recycling process is a bit different. Recycling is the process of converting waste materia...

In the present study, nano composites were prepared by Hand lay-up molding. The nano composites component of the unsaturated polyester resin (UP) as a matrix, 3% volume fractions of Carbon Fiber (C.F), Glass Fibers (G.F), Kevlar Fiber (K.F) as reinforcement and (0.5%,1%, 1.5% and 2%) volume fractions of Carbon Nanotubes (CNTs) as filler. The erosio...

This paper investigated the effect of incorporating two types of micro particles micro CaCO3 and micro SiO2 on mechanical properties and durability of concrete. Micro materials were added in four different dosages of 1%, 2%, 3% and 4% by weight as partial replacement of cement in concrete mixture. Mechanical properties of hardened concrete (compres...

The Waste materials need to be recycled in some method to avoid ground contamination. One of the method to reuse such materials is to include in concrete materials. This will decrease pollution and encourage sustainable development in environment conservation. In this work ash wastepaper was partially replaced as 0%, 5%, 7% and 10% in place of ceme...

The environmental troubles related to cement manufacturing are that it needs very high energy and emits large a mounts of carbon dioxide (CO2) as accidental results of production process. This problem encourages the researchers to look forward to use materials of less environmental impact. In this research (Marble powder, Neon glass, Brown glass, G...

In this work, the layered compound of LiCo0.5Ni0.45Ag0.05O2, (LCNAO) was prepared by self-propagating combustion reaction for the cathode of lithium–ion battery. The as-synthesized material was subjected to thermo-gravimetric (TGA) analysis to determine the optimum range of annealing temperatures. Accordingly were annealed at 800, 900 and 1000 °C f...

In the present study, nano composites were prepared by Hand lay-up molding. The nano composites component of the unsaturated polyester resin (UP) as a matrix, 3% volume fractions of Carbon Fiber (C.F), Glass Fibers (G.F), Kevlar Fiber (K.F) as reinforcement and (0.5%,1%, 1.5% and 2%) volume fractions of Carbon Nanotubes (CNTs) as filler. The erosio...

In this work, the physical and mechanical properties of nano composites are investigate. The nano composites consist of matrix was polyester resin and 3% volume fractions of glass fibers as reinforcement with (0.5%, 1%, 1.5%, 2 %( volume fractions of carbon nanotube as filler. Samples of nano composite materials in this research have been prepared...

This paper aims to investigate the influence of replacement of cement with nano silica, micro silica and silica gel admixtures on pozzolanic activity, the replacement ratio was10% for all admixture, silica gel used in two forms (beads and crushed powder). Also, the water absorption test was investigated for obtaining the durability properties of co...

Natural fibers of banana, reed, palm and coconut were used to reinforce cement composite. Optical microscopy showed that the prepared fibers are different in size and morphology. Nearly equiaxed, ribbon-like and nearly cylindrical morphologies were observed. Each of the utilized natural fibers was incorporated in the cement matrix at 0, 0.25, 0.5,...

Natural fibers of banana, reed, palm and coconut were used to reinforce cement composite. Optical microscopy showed that the prepared fibers are different in size and morphology. Nearly equiaxed, ribbon-like and nearly cylindrical morphologies were observed. Each of the utilized natural fibers was incorporated in the cement matrix at 0, 0.25, 0.5,...

In this paper we utilized mixing of different types of recycled glass such as (neon glass, brown glass, and green glass) that has high percentage of silicon dioxide (SiO2) with different concentrations. Utilization these landfall materials can be considered as keeping on resources. Different waste glasses used as a partial replacement of cement wit...

Sustainability and green concrete

The objective of this research is to study GF / EP nano and micro Titanium dioxide (TiO2)composites were prepared with different volume percentage of nano and micro TiO2 powder (2%,4%,and 6%volume fraction ). Atomic force microscopy techniques was used to measure the grain size of nano TiO2 powder (average diameter 46 nm) and particle size analyzer...

Predatory journals polluting researcher reputation junk science. No citation Neglected Time of publication (two days, one week, one month, three month) Use the word (international) Many errors in the research publish. Publishing 300 papers or more for one year!! Details about (Editorial Board) should be available (E-mail, affiliation ,full address…...

Chitosan has adaptable applications in skin, cartilage and bone tissue engineering. This study was concentrated on the enzymatic degradation of chitosan. The degradation was carried out during four weeks of incubation at (37 ᵒC) temperature in media phosphate buffer saline solution containing lysozyme. The samples were characterized using Fourier t...

The investigation of mechanical and physical properties of a series of fabricated polymer-based samples, and their erosion wear characteristics. The composites specimens are composed of epoxy resin as the matrix, 3% volume fraction of glass fiber as reinforcing material and filler powders from advanced ceramic oxides (Aluminum oxide (Al2O3), Silico...

Porous CaCO3 particles, both micro and nano sized, were synthesized in a mixture of Ca(OH)2, hyaluronic Acid (HA), glycine, NaOH and NaCl solution with supercritical carbon dioxide. The particles were characterized using X-Ray Diffraction (XRD), Fourier Transform Infrared (FTIR) spectroscope, Raman spectroscope (RS), X-ray photoelectron spectroscop...

department of engineering materials for third level

The environmental troubles that are related with cement production makes the new studies moving forward to using materials have less environmental impact, Thus, in this paper we utilized different type of recycled glass such as ( neon glass, brown glass, and green glass) that’s have high percentage of silicon dioxide (SiO2) with different concentra...

department of engineering materials for third level