Ijaz Ahmad

Ijaz Ahmad
National Textile University · management sciences

About

198
Publications
52,037
Reads
How we measure 'reads'
A 'read' is counted each time someone views a publication summary (such as the title, abstract, and list of authors), clicks on a figure, or views or downloads the full-text. Learn more
4,095
Citations
Citations since 2017
104 Research Items
2634 Citations
20172018201920202021202220230100200300400500600
20172018201920202021202220230100200300400500600
20172018201920202021202220230100200300400500600
20172018201920202021202220230100200300400500600

Publications

Publications (198)
Chapter
Rapid industrialization and urbanization are severely polluting the natural environment and damaging the economy of the entire world. In this context emergence of nanobiotechnology plays a significant role by providing the leading solution for the effective decontamination of environmental pollution and will further overcome the limitations offered...
Article
Full-text available
The discharge of dyes from textile industries led to a broad range of toxicological and environmental effects, posing severe health issues for humans and animals worldwide. These dyes are highly stable and, if not adequately treated, remain in the environment for extended periods. Adsorption, the most efficient and cost-effective method, offers uni...
Article
Full-text available
Toxoplasmosis is a zoonotic parasitic disease caused by T. gondii, an obligate intracellular apcomplexan zoonotic parasite that is geographically worldwide in distribution. The parasite infects humans and all warm-blooded animals and is highly prevalent in various geographical regions of the world, including Pakistan. The current study addressee pr...
Article
Full-text available
The present project is designed to investigate the potential of hoshanar and sunny grey marble wastes to remove direct violet 51 dye from wastewater using adsorption process. The effect of different parameters such as pH, adsorbent dose, initial dye concentration, and contact time were studied to optimize the results of adsorption process. Differen...
Article
In this study, density functional theory has been used to investigate the geometric, electronic, linear and nonlinear optical properties of exohedrally and endohedrally doped adamanzane M1(26 adz)M2 where (M1 = M2 = Be, Mg and Ca). The multiple doping rendered excess electrons to the system which resulted in increased HOMO energies and resultantly...
Article
Full-text available
Level of toxic heavy metal concentration like lead (Pb), chromium (Cr), cadmium (Cd), iron (Fe), copper (Cu), zinc (Zn), and nickel (Ni) in thirty-six soft and hard organs and their impact on lipid profile of Hypophthalmichthys molitrix and Catla catla fish species inhibiting in Tanda Dam reservoir were investigated. The heavy metal concentrations...
Article
Full-text available
Solar-activated water treatment has become an emerging research field due to its eco-friendly nature and the economic feasibility of green photocatalysis. Herein, we synthesized promising, cost-effective, and ultralong-semiconductor TiO2 nanowires (NW), with the aim to degrade toxic azo dyes. The band gap of TiO2 NW was tuned through transition met...
Article
Full-text available
The present study was aimed to remove direct violet-51, reactive green-5, reactive red, and acid red dyes by novel bentonite clay nanocomposites prepared using sodium metasilicate and potassium ferricyanide. The effect of temperature, pH, adsorbent amount, contact time, and initial concentration were studied to optimize the removal process. Various...
Article
In this study, an intriguing class of new complexes, in which 15-crown-5 is encapsulated by the Ag metal and exohedrally doped with alkali metals (Li, Na and K) is being explored for its electronic and optical response using ωB97XD/LANL2DZ functional of DFT. The three new complexes are thermally stable as evident from their interaction energy calcu...
Article
Full-text available
Biodiesel is an alternative fuel in many developing and developed countries worldwide. Biodiesel has significant and numerous economic, environmental, and social benefits. However, the problem with conventional biodiesel production is the high industrial production cost, mainly contributed by the raw materials. Therefore, catalysts and feedstock ar...
Preprint
Full-text available
The detailed description of parasites living in the areas of malaria endemic is essential to assess the achievement of current strategies of controlling malarial disease. The purpose of this study is to inspect the inherited multiplicity of the Plasmodium falciparum , obtained from malaria endemic areas of Pakistan, using the merozoite surface prot...
Article
Full-text available
Environmental problems associated with chemical catalysts to fulfil an ever-increasing energy demand have led to the search for an alternative environment friendly heterogeneous catalyst. If a catalyst being used in the biodiesel production is not environment friendly, then the environment is being contaminated in another way while trying to avoid...
Article
Full-text available
The use of non-toxic synthesis of iron oxide nanoparticles (FeO NPs) by an aqueous plant extract has proven to be a viable and environmentally friendly method. Therefore, the present investigation is based on the FeO NPs synthesis by means of FeCl3·6H2O as a precursor, and the plant extract of Nephrolepis exaltata (N. exaltata) serves as a capping...
Article
Full-text available
The goal of the research was to explore a new green method used to synthesize silver nanoparticles (Ag NPs) from an aqueous extract of Trigonella incise, which serves as a reducing and stabilizing agent. The obtained results showed an 85% yield of nanoparticles by using 2:5 (v/v) of 5% plant extract with a 0.5 M solution of AgNO3. Different techniq...
Article
Full-text available
Medicinal plants enriched with bioactive compounds are useful to treat pathological complications. Extraction is a first and foremost step for their application as medicine either in traditional medicine or in pharmaceutical formulation. Micelle-mediated extraction (MME) employs non-toxic, inexpensive, and non-volatile surfactants. Micelles encapsu...
Article
Full-text available
In the present work, plain and zinc oxide-loaded almond shells were pyrolyzed in an indigenously manufactured pyrolysis system. The bio-oil produced as a result of catalytic and non-catalytic pyrolysis was characterized using gas chromatography mass spectrometry (GC-MS). Bio-oil produced from non-catalytic pyrolysis consists mainly of ethanol, acet...
Article
Full-text available
In the current study, optical and nonlinear optical (NLO) properties of supersalt Al(BH 4) 3 doped boron nitride (BN) were studied by employing density functional theory (DFT) at the MPW1PW91/6-31 G (d,p) level of theory. HOMO-LUMO energy gap of 7.48 eV was found for pure BN which is reduced to 4.85 eV after doping. Supersalt doping has shown bette...
Article
Full-text available
Background: Dystrophic Epidermolysis bullosa (DEB) is a rare, severe subtype of epidermolysis bullosa (EB), characterized by blisters and miliary rashes of the skin. Dystrophic EB (DEB) includes variants inherited both in an autosomal-dominant or autosomal-recessive manner. Recessive dystrophic EB (RDEB) is divided into many subtypes and prevails a...
Article
Full-text available
This research work was focused on green synthesis of silver nanoparticles (Ag-NPs) employing an aqueous plant extract of Ifloga spicata. The extract of plant used in the silver nanoparticle synthesis served as a stabilizing and reducing agent. The silver nanoparticles were characterized via various techniques such as X-ray diffraction (XRD) techniq...
Article
Full-text available
Green synthesis of nanoparticles has emerged as an effective and environmentally friendly method. Therefore, the current investigation is based on the green synthesis of zinc oxide nanoparticles (ZnO-NPs) using plant extract of Sanvitalia procumbens (S. procumbens) that act as a capping and reducing agent. S. procumbens is a fast-growing shrub and...
Article
In this work, pure and supersalt-doped graphene is evaluated by the density functional theory (DFT) to explore its optical and electronic properties. The doping of supersalt Al(BH4)3 on graphene reduces the highest occupied molecular orbital and lower unoccupied molecular orbital (HOMO-LUMO) bandgap of graphene@Al(BH4)3 and graphene@2Al(BH4)3 to 3....
Article
Full-text available
The research work presented in this study is mainly concerned with the bioactivity-directed phytochemical and biological evaluation of Persea duthiei. Persea duthiei is a typical medicinal plant used to treat a variety of ailments such as asthma, edema, and bronchitis. Ethyl acetate, n-hexane, n-butanol, and compounds that are soluble in water were...
Article
The current development was focused on environmentally friendly and cost-effective synthesis of silver nanoparticles (AgNPs). This investigation aims to synthesize AgNPs using Anchusa arvensis aqueous plant extract. The characterization was confirmed by means of different techniques including, X-ray diffraction (XRD), Scanning Electron Microscopy (...
Article
Full-text available
Chromium (VI) in tannery effluent is one of the major environmental concerns for the environmentalists due to the hazardous nature of Cr(VI) ions. To reduce Cr(VI) to Cr(III) as an innocuous moiety, pure and I-doped ZnO was grafted over the etched surface of glass beads by successive ionic layer adsorption and reaction (SILAR). Powdered, pure, and...
Article
The basic aim of the research work is to expand the application range of biomaterials in the field of medical by increasing antibacterial and biocompatible behavior of thermoplastic polyurethanes. Blends of thermoplastic polyurethanes with chitosan and starch were prepared through extrusion process. The effect of polysaccharides (corn starch and ch...
Article
Full-text available
The present study dealt with the hydrometallurgical dissolution of molybdenum (Mo) and rhenium (Re) along with co-existing metal impurities from the molybdenite roasting flue dust using sulfuric acid as the lixiviant medium. The parametric influence of agitation speed, acid concentration, temperature, time, and pulp density in metals’ dissolution w...
Chapter
In the present study, the hydrometallurgical separation of refractory metals molybdenumMolybdenumand rheniumRhenium from the molybdenite flue-dusts processed leach liquor was investigated using the liquid–liquid extraction technique. Tri-butyl phosphateTBP (TBP) applied as the potential organic extractant for separation of refractory metals from le...
Article
Mint is an industrial crop cultivated worldwide at millions of hectares. A considerable variation has been reported in the yield and quality of oil obtained from the crops of menthol mint varieties depending on its menthol contents. The menthol percentage of mint is usually determined by gas chromatographic (GC) analysis, which needs high capital i...
Article
Full-text available
To eliminate imidacloprid insecticide from wastewater, nanocalcite was grafted onto the surface of pretreated polyester fabric. The process of seeding was followed by the low temperature hydrothermal method for the growth of nanocalcite for the functionalization of fabric. The goal of this study was to improve the hydrophilicity of the nanocalcite...
Article
Full-text available
The silver nanoparticles (AgNPs) were synthesized via green synthesis approach using Euporbia serpens Kunth aqueous extract. The synthesized AgNPs were characterized by UV-visible spectroscopy and Furrier Transformer Infra-Red spectroscopy to justify the reduction and stabilization of AgNPs from its precursors. AgNPs characteristic absorption peak...
Article
Full-text available
The increase in environmental pollution has led to an increased investigation in the development of novel ternary photocatalytic systems for remediation. These photocatalytic systems exhibit superior photocatalytic action for the removal of pollutants because of their visible light active bandgaps. A highly effective visible light active ternary he...
Article
The present research work is focused on thermogravimetric analysis of polypropylene over cobalt doped molecular sieve (Co/MS). The catalyst reduced the temperature of maximum degradation (Tmax) from 398.2 to 330 °C along with reduction in activation energy. Ozawa Flynn Waal (OFW), Coats Redfern (CR) and Tang Wanjun (TW) methods were applied for cal...
Article
Full-text available
Background Woodhouse-Sakati syndrome is a rare autosomal recessive disease with endocrine and neuroectodermal aberrations with heterogeneous phenotypes and disease course. The most common phenotypes of the disease are progressive sensorineural hearing loss and alopecia, mild-to-moderate mental retardation and hypogonadism. The disease results from...
Article
Full-text available
h i g h l i g h t s Role of surface plasmon resonance in H 2 production is of significant importance. Strategies to enhance semiconductor photocatalytic performance is discussed. Effect of doping and alloy fabrication over water splitting is discussed. Role of surface engineering and defects over water splitting is described. Photocatalytic hydroge...
Article
Full-text available
In the present study, zinc oxide (ZnO) nanoparticles were prepared using ZnCl 2 .2H 2 O as a precursor, via green route using leaf extract of Rhazya stricta as capping and reducing agent. e prepared ZnO nanoparticles were examined using UV-visible spectrophotometer (UV-Vis), Fourier transform infrared spectrometer (FT-IR), X-ray diffraction spectro...
Article
Zinc vanadate flower (ZVF) was synthesized through template free self-assembly route and characterized by scanning electron microscopy, X-ray diffraction, energy dispersive X-ray, Zeta potential and UV–visible spectroscopy. The possible growth mechanism was proposed and cetirizine dihydrochloride (C-HCl) was treated to evaluate the photocatalytic a...
Article
Full-text available
Haemonchosis is a parasitic disease of small ruminants that adversely affects livestock production. Haemonchus contortus is one of the most prevalent nematode parasites that infect the abomasum of small ruminants. This parasite reduces milk production, overall growth and sometimes causes the death of the infected animals. The evaluation of the bioc...
Article
Full-text available
The development of green technology is creating great interest for researchers towards low-cost and environmentally friendly methods for the synthesis of nanoparticles. Copper oxide nanoparticles (CuO-NPs) attracted many researchers due to their electric, catalytic, optical, textile, photonic, monofluid, and pharmacological activities that depend o...
Article
Degradation of natural organic matter especially Humic acid is a big challenge, while its byproducts are carcinogenic, which is a threat to life. Here, Fe³⁺:ZnO has been deployed on ceramic plats (CP) using SILAR method for solar photocatalytic mineralization of HA in municipal wastewater. Structural results show that ZnO and Fe³⁺:ZnO deployed over...
Article
Full-text available
Five acceptor-donor-acceptor molecules having different core units with 2-(2-Methylene-3-oxo-indane-1-ylidene)malononitrile as end capped terminal acceptor unit were designed. The ground state geometries and electronic properties were calculated by using density functional theory (DFT) at MPW1PW91/6-31G(d,p) level of theory. The absorption spectra...
Article
Demand for freshwater increases day by day as impurity increases due to the industrial, domestic and municipal waste in the water. Inappropriate disposal of coal fly ash (CFA) is not eco-friendly, therefore the need is to convert it into some beneficial material like zeolite. Zeolite-based composites with metal oxides show high cation interchange c...
Article
Full-text available
Owing to its captivating properties, Graphene-based materials (GMBs) have appeared as a broad-spectrum antimicrobial material and attracting scientists and researchers’ attention. By focusing on the recent advances in the polymeric nanocomposite’s field, current study is positioned on the graphene-based polymeric composites having antibiofilm and a...
Preprint
Full-text available
The increase in environmental pollution has led to an increased investigation in the development of novel ternary photocatalytic systems for remediation. These Photocatalytic systems exhibit superior photocatalytic action for the removal of pollutants because of their visible light active bandgaps. A highly effective visible light active ternary he...
Article
Full-text available
Admittedly, the disastrous emergence of drug resistance in prokaryotic and eukaryotic human pathogens has created an urgent need to develop novel chemotherapeutic agents. Onosma chitralicum is a source of traditional medicine with cooling, laxative, and anthelmintic effects. The objective of the current research was to analyze the biological potent...
Article
Full-text available
Bioassays guided phytochemical investigations on the ethyl acetate-soluble fraction of the root material of Ballota pseudodictamnus (L.) Benth. led to the isolation of two new compounds, ballodiolic acid A (1) and ballodiolic acid B (2), along with three known compounds ballodiolic acid (3), ballotenic acid (4), and β-amyrin (5), which were also is...
Article
Full-text available
8∑PAHs in 2- and 4-month-old desi chicken organs collected from Faisalabad district, Punjab, Pakistan, were examined via high-performance liquid chromatography (HPLC). Exposure doses (AVDD) of PAHs with consequential lifetime excess cancer risks (LtECR) were also estimated in people ingesting laboratory barbecued (Lb) and commercially barbecued (Cb...
Chapter
Full-text available
Industrial effluent (from textile, fertilizer, paper industries, pharmaceuticals, soap, etc.) usually contains a wide variety of pollutants such as dyes, pesticides, surfactants, oil and grease, antibiotics, various metal ions, auxiliary chemicals, etc. The release of poisonous pollutants is extremely destructive to aquatic life. Hence, the wastewa...
Chapter
s Nanotechnology is an inspiring discipline with numerous cost-effective and novel applications. Nowadays, nanotechnology is being empowered in the field of medicine, agriculture, space science, food processing, etc. The superior behavior of nanomaterials over large particles results in their high and effective utilization. Therefore, the developme...
Article
Full-text available
In this work, thermogravimetric analysis of sesame biomass samples was conducted in inert atmosphere at heating rate of 10 °C/min in the temperature range 30–1000 °C. Kinetic parameters were calculated applying the Coats-Redfern (CR) method. TG/DTG of sesame biomass showed that pyrolysis mainly occurred in the temperature range 205–412 °C. Therefor...
Article
An ecological or environmental disaster is a catastrophic event relevant to the environment caused by the uncontrolled human activities. Environmental disasters generally result from carelessness, mechanical failure, technical hurdles and accidental discharges leading to the long‐lasting environmental problems such as destruction of the ozone layer...
Article
Toxicological chemistry focuses on the toxicological aspects of all the factors severely affecting the human beings and other living organisms. Dose‐response relationship is of extreme importance as it is essential to specify the normal and lethal dose along with the conditions upon which response is obtained, including dose administration interval...
Article
Energy can be of various forms depending upon the source such as nuclear energy, electrical energy, heat energy, mechanical energy and light energy. Energy resources are of two major types: renewable energy resources and nonrenewable energy resources. Natural gas is abundantly found under the surface of earth and mainly consists of methane. It play...
Article
Biosphere is a self‐regulatory enclosed system apart from cosmic and solar radiations. The origin of the biosphere is expected to follow the concept of abiogenesis or biopoesis. The hydrosphere, atmosphere and lithosphere are three basic components of the biosphere, among which the hydrosphere includes ponds, lakes and oceans covering almost 73% of...
Article
Soil pollution is primarily caused by the various biological agents, radioactive contaminants, improperly disposed wastes, agricultural chemicals and industrial pollutants. Severe soil contamination and land degradation is mainly caused by a number of natural or xenobiotic chemicals that significantly affect the purity of environment and chemical c...
Article
The earth's atmosphere is a complex and crucial system that helps to regulate and maintain the climate and weather patterns of the earth and distribution of solar radiations all around the globe. Ozone is a natural protective layer around the earth that acts as a sunscreen and shields the earth from potentially harmful ultraviolet rays. This chapte...
Article
This chapter discusses various types of renewable energy resources such as wind, solar, water, geothermal, and fuel cells. It describes history, energy statistics, electricity generation method, working principles, and advantages and disadvantages of these resources. In wind energy resources, the wind turbine is used to convert the kinetic energy o...
Article
The lithosphere or geosphere is a shell of rocky planet, most rigid outer layer and solid part of the earth which constitutes crust and brittle mantle. The two major types of lithosphere are continental lithosphere and oceanic lithosphere. This chapter discusses the composition and characteristics of three major types of rocks: igneous rocks, sedim...
Article
All currently existing life forms on the earth heavily rely on an active hydrosphere which is purified into fresh water through the “natural hydrological cycle”. This chapter discusses the importance of hydrosphere and unique properties of water. A “natural water cycle” or “hydrologic cycle” occurs when the continuous movement and cyclic flow of wa...
Article
Plank's time is the time taken by a photon in travelling with the speed of light to cover the distance equal to Planck length. It is most significant in cosmology (a branch of astronomy involving the origin and evolution of the universe, from the Big Bang to today and on into the future). Spectrum of electromagnetic radiation is a complete range of...
Article
Hazardous wastes have broadly been classified as U‐list, P‐list, K‐list and F‐list of hazardous wastes based on four characteristics: toxicity, reactivity, corrosivity and ignitability. Based on the sources, hazardous wastes have been divided into three categories: nuclear hazardous waste, chemical hazardous waste, and biological hazardous wastes....
Article
Sources of biofuels include plants as a direct source and wastes of industrial, agricultural, commercial and domestic sector as an indirect source. Biofuels are known to have a number of distinctive characteristics and unique properties when compared with several other available fuels. This chapter discusses the properties of biofuels, including ph...
Article
Improper urban planning is the major factor that significantly enhances the level of noise pollution. The loudest natural sound experienced on the earth is thunder, which even reaches the threshold of an uncomfortable level. Industrial noise tends to vary in uniformity, frequency components and loudness. According to a rough approximation, aircraft...
Article
Air pollution may cause allergies and diseases in animals and human beings, leading even to the death of living organisms. They also cause severe damage to food crops and natural or manmade environment. Numerous toxins from natural and anthropogenic sources are responsible for these environmental disasters that affect the quality of air and purity...
Article
Water pollution not only disturbs the hydrosphere but also affects the atmosphere, specifically geosphere and entire biosphere including a variety of individual species, different populations and natural biological communities. There are several systems of classifications of water pollution and numerous classes of hydrospheric pollutants, but two m...
Article
Full-text available
Herein, highly efficient and cost effective solar photocatalytic water splitting for hydrogen (H2) generation was achieved by modified g-C3N4. Visible light absorption of g-C3N4 was enhanced by decorating g-C3N4 matrix with silver nanoparticles (Ag). Moreover, incorporation of carbon nanotubes (CNTs) in Ag/g-C3N4 facilitated photocatalytic performa...
Article
Water gets polluted by industrial effluents, mainly composed of heavy metals and organic materials. Water soluble heavy metals can be taken up by living organisms. Chromium mainly occurs in the form of chromate and cationic hydroxo complexes in water. Apart from conventional methods of heavy metal removal, there are some novel approaches such as us...