Prof. Imran Ali

National Islamic University · Department of Chemistry

Hydrogen production was achieved by irradiating methane and methane-water mixtures at 300–873 K on aluminosilicate (Al–O–Si) surface with gamma radiations. Results with methane molecules were two times higher at 773 K i.e. an increase in G(H2) yields from 1.2 to 2.3 molecules/100 eV. The efficiency of energy transfer in Al–O–Si–methane system was l...

Diuron is a broad-spectrum herbicide used to control weeds and algae in the agriculture sector. Diuron as a water pollutant has been detected in various water bodies due to its slow biodegradation. The adsorption methods offer a promising solution because of their low costs and efficiencies. This article discusses the presence, fate, ecotoxicology,...

A nanocomposite was prepared using MWCNTs and micro-sized bronze particles dispersed in elastomer silicone organic compound (SILAGER 8030). The nano-composite was characterized by FT-IR, SEM, EDS and Raman spectroscopy; showing the rough surface of the composite with interweaving of nano threads. This nano-composite was used to manufacture strain g...

Thirteen flavanone racemates were successfully separated using a Chiralpak® IA column and isopropanol‐hexane (50:50, v/v). The mobile phase flow rate and detection wavelength were 0.5 mL/min and 254 nm. The retention times values ranged from 5.50 and 56.45 min. The values of the retention, separation, and resolution factors ranged from 0.63 to 21.6...

This book provides a comprehensive understanding of the process of hydrogen production by water splitting, including materials used, methods and instrumentation. It discusses hydrogen production methods with a focus on water splitting (laboratory/industrial scales) followed by its storage and perspectives. It describes all the methods of hydrogen p...

Hydrogen storage is a critical factor in the progress of hydrogen and fuel cell techniques in applications including portable power, stationary power, and transportation. Hydrogen has the highest energy per mass of any fuel, but its low ambient temperature density results in a low energy per unit volume. Therefore, it needs the best development of...

To combat resistant bacterial strains, a series of compounds (3a-3e) were synthesized in excellent yield of 91-95%. These analogs were subjected to preliminary screening against various bacterial strains, including Escherichia coli, Pseudomonas aeruginosa, Klebsiella pneumoniae, and S. typhimurium to evaluate their effectiveness as antibacterial ag...

Hydrogen generation was obtained with homogeneous n-C6H14, 88.5% n-C6H14+11.5% H2O, 50% n-C6H14+50% H2O and 11.5% n-C6H14+88.5% H2O and heterogeneous Al2O3+n-C6H14, Al2O3+88.5% n-C6H14+11.5% H2O, Al2O3+50% n-C6H14+50% H2O and Al2O3+11.5% n-C6H14+88.5% H2O systems. Hydrocarbons (methane, ethane, propane, butane, pentane, and hexane) and other organi...

BACKGROUND The present work describes the facile, fast and economic base‐catalyzed acylation of benzenediols with vinyl acetate. The Hirshfeld surface analysis of benzene‐1,4‐diol O,O′‐diacetate is also described. NaOH, KOH and K2CO3 were the bases used for the catalysis of the acylation of benzene‐1,x‐diols (x = 2, 3, 4) with vinyl acetate to obta...

Three nano-dispersed catalysts (WS90³⁰⁰, WS70³⁰⁰ and A90³⁰⁰) were prepared from a copper-carbonate-ammonia complex. The influence of SiO2 (white soot and aerosil), chemical and phase compositions, porous structures, thermal stability and activity of the catalysts were investigated. The catalysts were characterized by FT-IR spectroscopy, low-tempera...

BACKGROUND Terbutaline is the drug of choice for asthma patients but it exists in racemic mixture. (R)‐(−)‐terbutaline is 200 times more active than (S)‐(+)‐terbutaline yet it is not advisable to prescribe racemic mixture due to certain adverse effects of (S)‐(+)‐terbutaline. Therefore, a fast, effective and reproducible separation method is necess...

Due to a great demand for amylose and cellulose polymeric chromatographic chiral columns, the enantiomeric separation of thiourea derivatives of naringenin was achieved on the different amylose (Chiralpak‐IB) and cellulose chiral (Chiralcel‐OJ and Chiralcel‐OD‐3R) columns with varied chromatographic conditions. The isocratic mobile phases used were...

The (RaO)x(SiO2)y.H2O compounds with various combinations have been produced, and characterized. The radium activities of these compounds were determined. These compounds were used to split water at different temperatures under the influence of gamma radiation. The yields of hydrogen at surface decomposition level with 6100 Bq/gr.s were 3–4 times h...

The rates of hydrogen molecule formation processes (W) for Н2, СН4, С2Н6, С3Н8, С4Н10, and С5Н12 in hexane were 3, 0.12, 0.56, 0.57, 0.3 and 0.06 × 10−14 molecule/s. Molecular particle yields (G) for Н2, СН4, С2Н6, С3Н8, С4Н10, and С5Н12 in hexane were 3.4, 0.14, 0.6, 0.6, 0.34, and 0.07 molecules/100eV. The rates of molecular hydrogen formation pr...

In recent years, food waste has been a global concern that contributes to climate change. To deal with the rising impacts of climate change, in Hong Kong, food waste is converted into electricity in the framework of low-carbon approach. This work provides an overview of the conversion of food waste into electricity to achieve carbon neutrality. The...

This edited book is based on the accepted papers for presentation at the 1st MedGU Annual Meeting, Istanbul 2021. With three sections spanning a large spectrum of geological and geoenvironmental topics, this book presents a series of newest research studies that are nowadays relevant to Middle East, Mediterranean region, and Africa. The book includ...

Nowadays, high-viscosity oil reservoirs are located in a sphere of extra attention with the demands of special technologies. To maximize high-viscosity oil production advanced action technologies are used involving thermal and many other chemical methods. The article describes the results of a laboratory experiment to determine the rheological prop...

The exploration of green energy is a demanding issue due to climate change and ecology. Green energy hydrogen is gaining importance in the area of alternative energy sources. Many methods are being explored for this but most of them are utilizing other sources of energy to produce hydrogen. Therefore, these approaches are not economic and acceptabl...

In this investigation, we synthesized substituted 1,2,4‐oxadiazole‐sulfonamide conjugates (8 a–8 l) through a multistep synthetic approach. These compounds were then evaluated against six bacterial strains, consisting of three Gram‐positive and three Gram‐negative strains. Among them, compound 8 d displayed notable inhibitory activity, with minimum...

Water contamination caused by toxic cadmium metal ions is a worldwide problem. There is a need to explore new methods of cadmium removal from water. The green algae Enteromorpha flexuosa, obtained from the Red Sea in Yanbu, Saudi Arabia, was used to prepare iron nanoparticles. TEM, FT-IR, XRD, and SEM techniques were used to characterize the prepar...

Heliotropium bacciferum plant is very important and has been used for medicinal values since ancient times. The present study deals with the extraction of essential oil (0.14 w/w) of this plant and its GC-MS analysis, anti-inflammatory, and anti-bacterial activities evaluation. GC analysis of essential oil confirmed 76 compounds with 49 terpenes an...

Solid oxide fuel cells (SOFCs) hold an important place in energy conversion and storage systems due to their fuel flexibility, high efficiency, and environmental sustainability. The scorching temperature (≥ 800 °C) to operate SOFCs results in shorter lifespan due to rapid deterioration of accompanying components. Nanomaterials have attained conside...

Multi‐walled carbon nanotubes (MWCNTs) were synthesized by a microwave method. MWCNTs had filamentous shapes (10 μm) and were intertwined in bundles (40–60 nm diameter). The rapid oxidation of MWCNTs with a loss of 90% of weight was observed from 530 to 630°C. 2% Residue was present at 630°C, which gradually decreased to 1.2% at 1000°C. In a silico...

Microplastic pollution is a serious environmental problem that affects both aquatic and terrestrial ecosystems. Small particles with size of less than 5 mm, known as microplastics (MPs), persist in the environment and pose serious threats to various species from micro-organisms to humans. However, terrestrial environment has received less attention...

The extraction of berberine was carried out from Berberis vulgaris, Berberis aquifolium, and Hydrastis canadensis plants using ethanol and water (70:30, v/v). The extracted berberine was characterized by ultraviolet-visible and Fourier-transform infrared spectroscopy. The purity of berberine was ascertained by thin-layer chromatography using n-prop...

In this work, graphene-based ten nanofluids were synthesized, and their viscosities were determined. Also, a theoretical analysis of the molecular interactions of graphene nanoparticles is carried out in order to understand the mechanisms affecting the viscosity of nanofluids. Based on the results of experiments, an analytical function that describ...

A polymer-based nanosensor and electrochemical methods were developed for the quantitative analysis of vanillin. The sample preparation was done using nano solid phase micro membrane tip extraction (NSPMMTE). A novel poly(phenylalanine)/TiO2/CPE sensor was built as the working electrode for the first time for the analysis of the vanillin substance....

Recycling waste from the production and consumption of heat-resistant alloys to return them to production is an urgent task due to the high cost of the components contained in these alloys. The kinetics and conditions of the acid leaching process of the grinding waste of a heat-resistant nickel alloy are studied depending on the composition of the...

Separation and identification of chiral molecules is a topic widely discussed in the literature and of fundamental importance, especially in the pharmaceutical and food fields, both from industrial and laboratory points of view. Several techniques are used to carry out these analyses, but high-performance liquid chromatography is often the "gold st...

Acenocoumarol (anticoagulant agent) is not capable to work fast in some patients due to the narrow range of half-life. Therefore, anticoagulant activity was increased by synthesizing and characterizing the chiral separation of five new imino derivatives (3a-e) of acenocoumarol. These derivatives are racemic and the existing 20 stereoisomers were se...

The idea of Green Chemistry began to take shape in an increasingly important way starting in the 90 s when the impact of chemical products and processes began to be critically evaluated.In the analytical chemistry field, green chemistry represents an essential factor to consider whenever a laboratory procedure is planned. Therefore, from the start...

Cellulose-based materials are the current requirements in the area of chromatography for cutting-edge interdisciplinary research work in pharmaceutical industries, research and development, and academic research centers globally. The application of this regenerated cellulose can be used in different chromatographic analysis. Basically, the raw mate...

The treatment of biological samples, especially from complex matrices, has consistently challenged analytical operators. The classic problems to be faced for any analysis, regardless of the origin of the sample, such as for example contamination and loss of analyte, in biological samples, are particularly emphasized. In particular, the main cause o...

Among many diseases, allergy appears to be a serious problem for human beings. Various forms of allergic disorders make people tense, leading to some other health issues. Many medications, including nonracemic and racemic ones, are used to treat this problem. It is important to have exact analysis strategies just to see any medication side effects,...

Nowadays, it is vital to have new, complete, and rapid methods to screen and follow pharmacotoxicological and forensic cases. In this context, an important role is undoubtedly played by liquid chromatography-tandem mass spectrometry (LC-MS/MS) thanks to its advanced features. This instrument configuration can offer comprehensive and complete analys...

One of the most discussed topics concerns the sample preparation before the analysis and, therefore, all the operations necessary to eliminate the interferents, clean up the specimens, and extract the analytes of interest, reducing the matrix effect. This review highlights the fundamental steps in the treatment of postmortem samples used in forensi...

OBJECTIVES Due to changes in climate and the estimation of fossil fuel exploitation in the future, there is a great demand for green energy. Therefore, hydrogen production was studied by water splitting using Al2O3 nanoparticles as a radiation catalyst with gamma rays irradiation EXPERIMENTAL The effects of different particle sizes, surface area,...

The primary cause of poor and ambiguous results obtained from the bioanalytical process is the sample pre-treatment, especially in clinical analysis because it involves dealing with complex sample matrices, such as whole blood, urine, saliva, serum, and plasma. So, the aim of this review is to focus attention on the classical and new techniques of...

Due to the none-biodegradable and carcinogenic nature of toxic metal ions, a novel sorption-electroflotation method was developed using carbon nanomaterials. The metal ions removed were Ni(II), Co(II), Zn(II), Fe(II), and Cu(II) using carbon nanotubes (CNTs) and carbon nanoshells (CNSs). The porous structure, morphology, composition, and surface pr...