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71 articles for “carbon dioxide”
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Advancements in Nanostructured Membranes for Gas Separation: A Comprehensive Review
Abstract: Gas separation is vital in petrochemical, pharmaceutical, and environmental industries, yet traditional methods like distillation and cryogenic separation are energy-intensive and inefficient. Nanostructured membranes present a promising alternative, utilizing nanomaterials such as titanium dioxide, silica, carbon nanotubes, zeolite, and metal-organic frameworks to enhance separation efficiency and selectivity while reducing energy consumption. These membranes fall into various categories: polymeric nanostructured membranes, including mixed matrix and thin-film composites; inorganic membranes, such as …
Published in International Journal of Membranes · Vol. 1, Issue 1, 2024 · pp. 31–36 Read article
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Synthesis and Characterization of Sustainable, Low-Cost, Biomass-Derived Carbon Films from Hevea Brasiliensis (Rubber) Wood for Environmentally Friendly Gas Sensors with Enhanced Selectivity and Sensitivity to Polar Vapors and Hazardous Gases
Abstract: Hevea brasiliensis (rubber) wood sawdust was utilized to fabricate carbon gas sensors for detecting 1000 ppm of ethanol, methanol, acetone, carbon dioxide, and ammonia gases. The carbon particles were prepared by phosphoric acid impregnation followed by thermal activation and then fabricated into films on conductive and non-conductive substrates using the doctor blade method. X-ray diffraction (XRD) analysis revealed distinct graphitic features with peaks at the (002) and (100) planes, indicating …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 12, Issue 1, 2025 · pp. 22–36 Read article
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Understanding the Role of Remote Sensing Techniques in Monitoring Air Quality for Effective Adherence to Environmental Impact Assessment Practices in Nigeria
Abstract: The paper reviews the Nigerian Environmental Impact Assessment (EIA) Act, outlining the established air quality thresholds and emission caps for stationary sources. The standard applies to; common pollutants like sulphur dioxide, carbon monoxide, ozone, particulate matter and nitrogen oxides; toxic metals such as arsenic, nickel, cadmium and mercury; as well as volatile organic compounds, ammonia, antimony, zinc, formaldehyde and radon.It also describes the major classifications of remote sensing applications, including …
Published in International Journal of Satellite Remote Sensing · Vol. 4, Issue 2, 2026 Read article
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Greenhouse Gas Emissions, Land Use, and Sustainable Natural Resource Management: A Review
Abstract: Greenhouse gas (GHG) emissions, changes in land use, and the exploitation of natural resources are significant obstacles to achieving global sustainable development goals. These interconnected challenges have far-reaching implications for environmental stability, economic growth, and societal well-being.Urbanization, deforestation, and agriculture are examples of land use activities that significantly increase greenhouse gas emissions. Agricultural activities release methane and nitrous oxide, while deforestation leads to carbon dioxide emissions by reducing forest cover, …
Published in International Journal of Sustainability · Vol. 2, Issue 1, 2025 · pp. 7–11 Read article
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Critical Review on Photocatalytic Polymer Nanocomposites for Indoor Air Purification in Hotels
Abstract: The indoor air quality has become a key measure of health, comfort, and customer satisfaction of a hospitality setting. The challenges that continually affect hotels especially because of volatile organic compounds (VOCs), particulate matter, and microbial pollutants that are present in cleaning agents, furnishing, and human activity. In this regard, the photocatalytic polymer nanocomposites are one of the sustainable and efficient means of purifying indoor air. These materials combine photocatalysts …
Published in Journal of Polymer & Composites · Vol. 14, Issue 2, 2026 · pp. 527–541 Read article
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Use of Geopolymer Composites for Controlling Structural Cracks
Abstract: A building’s safety and stability can be compromised by ignoring the potential structural issues indicated by occurring cracks in buildings. Extensive damage may cause over the period from unidentified cracks.Good quality concrete never cracks in normal service conditions unless high horizontal force is applied. Through the cracks, carbon dioxide is released into the concrete and speeds up carbonation throughout the cracks, thus reducing the structure usage. The materials which are …
Published in Journal of Polymer & Composites · Vol. 12, Issue 6, 2024 · pp. 172–184 Read article
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Evaluation of the Emission and Engine Operability of Biodiesel and Biodiesel Blends Produced from Alkali-Catalyzed Esterification and Transesterification of Jatropha Oil Feedstock
Abstract: This study reports on the engine performance analysis of biodiesel and blends produced from jatropha-based bio-oil feedstock via combined esterification and transesterification process, the physiochemical of the bio-oil, and subsequent biodiesel produced. Jatropha bio-oil was characterized to determine its fuel properties. A liquid phase transesterification reaction at 60 min reaction time, 50°C temperature, using a methanol-oil molar ratio of 40:1 and 0.35 g of sodium hydroxide (NaOH) catalyst was carried …
Published in Journal of Petroleum Engineering & Technology · Vol. 15, Issue 1, 2025 · pp. 9–21 Read article
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Synthesis of Lawsonia Inermis (Henna) Carbon Supported AgO Nanocomposite, Characterizations and Photocatalytic Activity Studies
Abstract: Synthesis of Carbon supported AgO nanocomposite is reported for first time. Henna carbon was successfully synthesized from henna leaf. Bare AgO and C-AgO nanocomposites are effectively made using precipitation method. The synthesised composites structural, morphological, and optical properties are assessed using FT-IR, XRD, FE-SEM, UV-DRS, and PL techniques. FT-IR analysis proved that specific functional groups of synthesized materials. The uniform distribution of the composites is revealed in the FE-SEM. XRD …
Published in Journal of Polymer & Composites · Vol. 13, Issue 1, 2025 · pp. 749–760 Read article
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Corrosion and Corrosion Protection of Unio in Carbonic Acid Medium
Abstract: Unio is a calciferous animal, and its outer surface is made of calcium carbonate. It usually happens in sources of sweet water. They create carbonic acid by absorbing carbon dioxide. It changes the pH of sweet water sources thus water becomes acidic. It develops corrosive environment for Unio. Carbonic acid interacts with Unio to form corrosion cells on the interface of Unio. This acid oxidizes calcium carbonate into calcium ions …
Published in Journal of Water Pollution & Purification Research · Vol. 12, Issue 1, 2025 · pp. 22–31 Read article
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Bio-Inspired Nanostructured Catalysts for CO2 Valorization: Green Chemistry Approaches in Polymer Nanocomposites for Sustainable Energy Solutions
Abstract: Artificial photosynthesis is a pioneering technology inspired by natural photosynthetic processes, offering a sustainable solution to address global energy crises and mitigate environmental impact. By harnessing solar energy, artificial photosynthesis aims to convert carbon dioxide (CO₂) and water into high-energy chemicals, such as methanol and hydrogen, while concurrently reducing harmful greenhouse gas emissions. This innovative process represents a transformative shift toward carbon-neutral or even carbon-negative energy production, helping reduce dependency …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 38–46 Read article
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OBD-II Big Data–Driven ML and AI-Based Virtual Sensing for Fuel Economy, Component Health, and Carbon Intelligence
Abstract: The rapid growth of connected vehicles has led to the large-scale availability of high-frequency On-Board Diagnostics II (OBD-II) data; however, much of this data remains underutilised, as existing studies and commercial systems typically address fuel economy, maintenance, or emissions in isolation or rely on additional physical sensors. Such fragmented and sensor-dependent approaches limit scalability and increase system cost, particularly in high-volume and resource-constrained vehicle markets. To address this gap, this …
Published in Journal of Automobile Engineering and Applications · Vol. 13, Issue 1, 2026 · pp. 39–50 Read article
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Ultra Smoke Filter (Air Purifier)
Abstract: All the vehicles and industries which are running by the burning of the hydrocarbons are continuously adding carbon dioxide and other poisonous gases into the atmosphere as billions of tons every year. This is a major problem before our industrial and mechanical progress. Auto vehicles are emitting billions of tons of CO2 into the atmosphere continuously because these are consuming diesel and petroleum like hydrocarbons this is a challenging situation …
Published in Trends in Machine design · Vol. 11, Issue 1, 2024 · pp. 37–41 Read article
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Design of Plant for the Production of 30,000 Tons Per Year Capacity of Dimethyl Carbonate (DMC) from Natural Gas Using Aspen HYSYS
Abstract: This study focuses on the design of a plant for the production of 30,000 tons per year of dimethyl carbonate (DMC) from natural gas. The plant design was carried out using the Aspen HYSYS Software. The data obtained from Kokori natural gas served as the primary feedstock for the plant. A kinetic model for the production of DMC was developed from existing literature, followed by the development of the mathematical …
Published in Emerging Trends in Chemical Engineering · Vol. 12, Issue 3, 2025 · pp. 45–60 Read article
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Harnessing Microalgae for Wastewater Treatment: Industrial Prospects and Environmental Benefits
Abstract: Simultaneous pollutant removal and biomass valorization has made microalgae an attractive and innovative solution to wastewater treatment, which could be considered a sustainable, low cost, and low energy approach. Considering their ability to store carbon dioxide, resorb nutrients, and produce valuable bioproducts, they represent an alternative with ecological potential to other previously used treatment methods. This review discusses how microalgae are used in industrial applications including biofuels, pharmaceutical, cosmetic, agriculture, …
Published in Research and Reviews : A Journal of Biotechnology · Vol. 15, Issue 2, 2025 Read article
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Development of Low-GWP Refrigerants for Future Air Conditioning and Refrigeration Applications
Abstract: The growing concern over global warming and the need to mitigate climate change has propelled significant research into the development of low-GWP (Global Warming Potential) refrigerants for air conditioning and refrigeration systems. Traditional refrigerants, such as hydrofluorocarbons (HFCs), have been widely used in the HVAC&R (Heating, Ventilation, Air Conditioning, and Refrigeration) industry but contribute significantly to global warming due to their high GWP values. As a result, global regulations, including …
Published in Journal of Refrigeration, Air conditioning, Heating and ventilation · Vol. 11, Issue 3, 2024 · pp. 35–39 Read article
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Modeling of the Mechanism of Generating Processes of Water Electrolysis and Photosynthesis with Solar Energy Used for Productions of Gas Oxygen and Hydrogen, of Concentrate of the High-calorie Microalgae Chlorella, and for Industrial Wastewater Treatment
Abstract: The use of solar energy for generation of the process of water electrolysis, permitting the oxygen and hydrogen gases production, concentration of the high-calorie fast productive Chlorella microalgae, and industrial wastewater treatment is the most promising direction today. This is explained by the complete absence of electrical energy consumption for the implementation of these industrial technological projects. No less interesting is the process of photosynthesis of phytoplankton cells, which also …
Published in International Journal of Advance in Molecular Engineering · Vol. 1, Issue 1, 2023 · pp. 7–21 Read article
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A Review of IoT-enabled Smart Street Light Power Management Systems: Challenges and Opportunities
Abstract: In the contemporary world, people expect all their demands to be satisfied. To address this human desire, scientific and technological developments are accelerating. One important factor in the quick development of technology is the Internet of Things (IoT). The goal of smart led street lighting systems is to create and implement cutting-edge IOT developments for energy-saving street lighting. Automation of street lighting is the best way to reduce electrical power …
Published in International Journal of Solid State Innovations & Research · Vol. 1, Issue 1, 2023 · pp. 1–7 Read article
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Agro- residue Pretreatment Tools and Techniques: A Detailed review
Abstract: This review examines the significance of biomass pre-treatment in facilitating efficient biofuel production from lignocellulosic materials. Different methods of pre-treatment, such as acid, alkaline, liquid hot water, ionic liquids, organosolv, ozonolysis, wet oxidation, steam explosion, ammonia fiber explosion (AFEX), carbon dioxide explosion, and biological pretreatment, are examined in terms of their underlying principles, benefits, and drawbacks. Acid pretreatment effectively hydrolyzes hemicellulose but suffers from equipment corrosion and high operational costs, …
Published in Research & Reviews : Journal of Botany · Vol. 13, Issue 1, 2024 · pp. 22–31 Read article
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Enhancing Combustion Efficiency and Emission Reduction in Single Cylinder CI Engines: A Study on Waste Dairy Scum Methyl Ester Biodiesel Blends with Aluminium Oxide Nanoparticles
Abstract: In response to the urgent need for sustainable energy solutions and environmental considerations, this study explored the utilization of waste dairy scum methyl ester biodiesel blended with diesel and enhanced with Al2O3 nanoparticles as an additive. The biodiesel was prepared by blending waste dairy scum methyl ester with diesel and incorporating 100 ppm Al2O3 nanoparticles. Experimental tests were conducted on a single-cylinder diesel engine, comparing neat diesel, B30 biodiesel blends …
Published in Trends in Mechanical Engineering & Technology · Vol. 14, Issue 1, 2024 · pp. 15–28 Read article
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Sustainable Electricity Generation through Solar Power Technologies: A Review
Abstract: Fossil fuels are burned to create the bulk of the energy produced globally, which depletes fossil fuel reserves and releases carbon dioxide into the atmosphere. The continued volatility of fuel prices has sparked serious concerns about the sustainable use of fuel for future energy needs. Energy use can be made sustainable and clean by minimizing the use of renewable energy resources as opposed to the damaging gases generated during the …
Published in Journal of Power Electronics and Power Systems · Vol. 14, Issue 1, 2024 · pp. 28–36 Read article