All articles
621 articles
-
Structure and dynamics of carbon dangling bonds in activated carbon materials from biomass†
Abstract: Activated carbon materials are inevitable for energy-related applications. Production of such materials from biomass is sustainable. Microporous activated carbon materials with high specific surface area and pore sizes of less than 2 nm find life-saving applications apart from their utility in environmental remediation. The free electron density of these materials is tunable and is a measure of electrical conductivity that is useful for the development of green and renewable energy …
Published in International Journal of Green Chemistry · Vol. 11, Issue 1, 2025 · pp. 18–27 Read article
-
Assessing trends in Speciation of First-Row Transition Metals in Children's Playgrounds of Owerri, Nigeria
Abstract: Chemical species of metals affect toxicity but trends of these metals species in soils are less studied. This study examined the trends and variability of species of metals in soils from playgrounds within Owerri. Eighty-one composite soil samples from nine playgrounds were collected in dry and rainy season to reflect spatio-seasonal variability. Samples were characterized by standard methods in triplicates and then extracted sequentially. Concentrations of metal species were determined …
Published in International Journal of Green Chemistry · Vol. 11, Issue 1, 2025 · pp. 28–45 Read article
-
Dry Season Impact on Water Quality of Nworie River, Owerri, Nigeria
Abstract: This study assessed the physicochemical properties and heavy metal contamination of Nworie River during the dry season. Fifteen composite water samples were collected from strategic points along the river. In-situ measurements of pH, temperature, and electrical conductivity were undertaken, while laboratory analyses determined heavy metal concentrations. Pollution Load Index and Contamination Factor were employed to evaluate the overall water quality and contamination levels. Results indicated moderate to high levels of …
Published in International Journal of Analytical and Applied Chemistry · Vol. 11, Issue 1, 2025 · pp. 40–49 Read article
-
Structure and dynamics of carbon dangling bonds in activated carbon materials from biomass
Abstract: Active carbon materials are inevitable for energy-related applications. Production of such materials from biomass is sustainable. Microporous activated carbon materials with high specific surface area and pore sizes of less than 2 nm find life-saving applications apart from their utility in environmental remediation. The free electron density of these materials is tunable and is a measure of the electrical conductivity useful for the development of green and renewable energy sources. …
Published in International Journal of Green Chemistry · Vol. 11, Issue 1, 2025 · pp. 18–27 Read article
-
Modeling the Biokinetic of Crude Oil Degradation inLoamy Soil Using the Citrus Sinensis of Flavedo Part
Abstract: The biokinetic parameters of crude oil degradation using Citrus sinensis of flavedo part was investigated in loamy soil environment. Mathematical models were developed for the purpose of determining the biokinetic parameters of the k1 (Total Petroleum Hydrocarbon), maximum specific rate of TPH remediation and dissociation constant of the TPH remediation on the effect of remediant dosage on the polluted loamy soil environment. The effect of the remediants were monitored for …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 Read article
-
Investigation on the Characteristics of Chromolaena Odorata (Awolowo leaf) in Petroleum Hydrocarbon Degradation in Loamy Soil Environment
Abstract: The application of Chromolaena odorata (Awolowo leaf), processed into powder form, was used as a biostimulant for petroleum hydrocarbon degradation and mitigation in a loamy soil environment. In this investigation, the physicochemical and microbial characteristics of the sample were determined, as presented in this research, including pH, electrical conductivity (EC), total nitrogen (T.N), total phosphorus (T.P), potassium (K), total organic carbon, and P. fluorescence. Corynebacterium sp., Arthrobacter, Bacillus, Acinetobacter iwoffi, …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 · pp. 13–23 Read article
-
Impact of Cryogenic Temperatures on the Mechanical and Thermal Properties of Polymers and Composites
Abstract: The development of lightweight, high-performance materials for use in cryogenic environments is crucial for advanced applications in aerospace, energy storage, and industrial sectors. This study explores the thermodynamic and mechanical behavior of fiber-reinforced polymers and composite materials under extremely low-temperature conditions. The cryogenic performance of these materials, including their thermal stress resistance and impact properties, was assessed with a focus on polymer fragility and the durability of composites at temperatures …
Published in International journal of Thermodynamics and Chemical Kinetics · Vol. 10, Issue 1, 2024 · pp. 7–12 Read article
-
Quantification of Morphine, Codeine, and Dihydrocodeine in Carissa carandas Leaves and Fruit Using LC-MS/MS: The Impact of Drying on Alkaloid Concentration
Abstract: This study presents a method for quantifying morphine, codeine, and dihydrocodeine in Carissa carandas (Karonda) leaves and fruit, employing morphine-D3 as an internal standard (1 µg/mL) to ensure accuracy. Samples are prepared at 25 ng/mL and extracted using solvent techniques, with an optional solid-phase extraction step to mitigate matrix effects. Quantification is conducted via LC-MS/MS, providing robust sensitivity. Results show that drying concentrates these alkaloids, particularly morphine in fruit, due …
Published in International Journal of Environmental Chemistry · Vol. 11, Issue 1, 2025 · pp. 49–61 Read article
-
Synthesis of Groundnut Shell Composites: Exploring Chemical Reactions for Particle Treatmentand Modification
Abstract: The utilization of groundnut shell particles as a sustainable and economical filler in composite materials has garnered significant interest in recent years. This manuscript presents an in-depth analysis of the chemical processes involved in synthesizing groundnut shell-based composites, with a focus on the treatment and modification of the particles to enhance their compatibility and functional properties. The study investigates various chemical reactions, including acid and alkali treatments, aimed at altering …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 2, 2025 · pp. 27–32 Read article
-
Innovative Approaches to Organic and Inorganic Nanocomposite Synthesis: Chemical Reaction Pathways
Abstract: The integration of organic and inorganic nanomaterials has emerged as a prominent trend in various sectors, driven by the unique properties and functionalities that nanoscale materials offer. This study elucidates the current landscape of organic-based nanomaterials, highlighting their synthesis, characterization, and application potential across different fields. The miniaturization principle has catalyzed the development of nanocomposites that combine inorganic and organic constituents, enhancing the reactivity and performance of traditional materials through …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 2, 2025 · pp. 1–9 Read article
-
UV-Spectroscopic Interaction Studies of Synthesized Graphene Oxide and Methyl Orange
Abstract: Graphene oxide (GO) has become a popular material due to its valuable properties and wide range of applications in various fields. GO was synthesized using a modified Hummers’ method and characterized through various techniques, including X-ray diffraction (XRD), and scanning electron microscopy (SEM), The effectiveness of GO in decolorizing methyl orange was assessed using UV-Vis spectrophotometry, with varying GO concentrations (0.05, 0.075, 0.1, 0.15) g and time (2–120 minutes) intervals. …
Published in International Journal of Environmental Chemistry · Vol. 10, Issue 2, 2024 · pp. 36–47 Read article
-
Sorghum vulgare Plus Azospirillum lipoferum and Rhizobium tropici with NH4NO3 at 50% Reduce N2O Releasing
Abstract: Sorghum vulgare, a gramineae of commercial value, requires NH4NO3 for healthy growth, that in excess causes loss of soil productivity and the release of N2O, a greenhouse gas that contributes to global warming. An alternative solution to reduce and optimize NH4NO3 with: Azospirillum lipoferum and Rhizobium tropici. The objective of this work was: to analyze the effect of A. lipoferum and R. tropici 50%. For this, A. lipoferum and R. …
Published in International Journal of Environmental Chemistry · Vol. 10, Issue 2, 2024 · pp. 14–19 Read article
-
A Review Article: Applications of Electroanalytical Techniques
Abstract: Electroanalytical techniques are thought to be the most significant area of analytical chemistry, which identify the properties as well as quantify the given analyte(s) within an electrochemical cell. The high sensitivity, high analysis speed, low sample and solvent consumption, high scan rate, low operating cost of electro analysis make it highly advantageous in all situations. A summary of electroanalytical techniques is provided, with an emphasis on their most common uses …
Published in International Journal of Analytical and Applied Chemistry · Vol. 10, Issue 2, 2024 · pp. 13–19 Read article
-
Doping and Its Impacts on the Properties of ZnO Nanocrystals: A Brief Review
Abstract: Research on zinc oxide (ZnO) has surged in recent years due to its extensive range of applications because its unique physical and chemical properties make it ideal for various uses, including acoustic devices, photocatalysis, pharmaceuticals, light-emitting diodes, solar cells and antibacterial agents. ZnO nanoparticles are particularly notable for their biocompatibility, low toxicity and stability, making them suitable for drug delivery and antiviral applications. The versatility of ZnO has led to …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 8–25 Read article
-
One-Pot Multicomponent Reactions: A Versatile Approach for Heterocyclic Compound Synthesis
Abstract: Multicomponent reactions (MCRs) represent an efficient and versatile approach in organic synthesis, enabling the formation of complex molecules through a single, one-pot procedure. This methodology is particularly advantageous for the synthesis of heterocyclic compounds that are prevalent in numerous biologically active molecules and pharmaceuticals. The one-pot nature of MCRs allows for the simultaneous combination of three or more reactants, leading to high atom economy, reduced reaction times, and minimized purification …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 1–7 Read article
-
Synthesis and Evaluation of Antimicrobial Activity of Some Heterocyclic Moieties of Pyrazole Derivatives
Abstract: In a successful trial to synthesize pyrazole derivatives, acetophenone was, first, reacted with phenylhydrazine producing the Schiffs’s base condensation product (E)-1-phenyl-2-(2-phenylethylidene) hydrazine 1. The application of Vilsmeier Haack’s reaction on this product afforded the cyclization product (1,3-diphenyl-1H-pyrazole-4-carbaldehyde 2 as a pyrazole derivative in good yield percentage. The treatment of (1,3-diphenyl-1H-pyrazole-4-carbaldehyde (2) with acetophenone results in the formation of another pyrazole derivative (3), having a chalcone moiety.The chemical structure of newly …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 26–36 Read article
-
Chemical Processes in Leather Tanning: Bridging Conventional Methods with Bio-Leather Technologies
Abstract: The leather industry, known for its extensive use of chemical processes, is undergoing a significant transformation with the introduction of sustainable practices and bio-derived materials. This study explores advancements in the chemical synthesis and reactions involved in leather production, focusing on both traditional and innovative approaches. Traditional tanning processes, which often involve chromium and other chemicals, are contrasted with emerging bio-leather technologies that utilize renewable resources to minimize environmental impact. …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 2, 2025 · pp. 36–41 Read article
-
Design and Optimization of Heterogeneous Catalysts for Green Chemistry Processes
Abstract: The design and optimization of heterogeneous catalysts are critical for advancing green chemistry processes, aiming to minimize environmental impact while maximizing efficiency. This study explores innovative strategies for the development of heterogeneous catalysts that facilitate environmentally benign reactions. By integrating principles of catalyst design, surface science, and reaction engineering, we aim to enhance catalytic performance, selectivity, and stability. Catalyst composition and structure, investigating novel materials, including metal-organic frameworks (MOFs), zeolites, …
Published in International Journal of Chemical Synthesis and Chemical Reactions · Vol. 10, Issue 1, 2025 · pp. 42–48 Read article
-
Response of Zea mays to Rhizophagus Intraradices with 50% Nitrogen and Phosphorus Fertilizer Prevents the Release of N2O From the Soil
Abstract: The healthy growth of Zea mays (maize) requires NH4NO3/PO4--3 fertilizers (ammonium nitrate and phosphates), are applied in unregulated doses, are associated to denitrification, generating greenhouse gases, causing global warming, loss of soil productivity, and pollution of surface water in case of phosphates. An alternative is to decrease and optimize the dose of NH4NO3/PO4--3 by applying arbuscular vesicle fungi (AVF), to optimize, the dose of nitrogen and phosphorus fertilizers, AVF endosymbionts …
Published in International Journal of Environmental Chemistry · Vol. 10, Issue 2, 2024 · pp. 26–35 Read article
-
Fermentation of Residual Wheat Straw by Penicillium chrysogenum and Streptomyces griseus Generates Phytohormones
Abstract: Residual lignin from wheat straw (RELIWS) is burned, that causes environmental pollution; as well as global warming by releasing greenhouse gases, an ecological alternative is its microbial by double fermentation by monosporic common fungi and native actinomycete that are able to transform it to phytohormones. The objectives of this work were: i) depolymerization of RELIWS by Penicillium chrysogenum, b) conversion of aromatics of RELIWS into phytohormones by Streptomyces griseus and …
Published in International Journal of Green Chemistry · Vol. 10, Issue 2, 2024 · pp. 1–7 Read article