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43 articles for “sulfate”
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Anodic Polarization Study on Steel Bar in Concrete Powder Solution Extracts Contaminated with Chloride and Sulfate Salts
Abstract: In present work, anodic polarization tests are conducted on different steel specimens to find out corrosion zone potentials of various corrosion zones. The tests are done in the concrete powder solution extracts contaminated with the varying levels of admixed chloride and sulfate salts, at varying w/c ratios and cement types. The admixed chloride content is fixed at 3.5% and the sulfate content is used as 0, 2.5 and 5%, by …
Published in Journal of Materials & Metallurgical Engineering · Vol. 6, Issue 1, 2016 · pp. 22–28 Read article
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Sulfated Zirconia Catalyzed Biodiesel Production from Acid Oil Containing High Free Fatty Acids
Abstract: Biodiesel fuel has shown great promise as an alternative to petro-diesel fuel. Biodiesel production is widely conducted through esterification and transesterification reaction, catalyzed by homogeneous or heterogeneous catalysts. In the present endeavour, sulphated zirconia has been prepared using microwave method and characterized by using XRD, FT-IR, BET surface area, SEM and acidity measurement. The utility of synthesized catalyst is demonstrated in catalytic biodiesel production from acid oil feed stock. The …
Published in Journal of Catalyst & Catalysis · Vol. 4, Issue 2, 2017 · pp. 35–45 Read article
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A Study of the Effect of Sodium Hydroxide and Sodium Lauryl Sulfate Surface Treatments on Natural Fibers
Abstract: Due to its accessibility, environmental friendliness, renewability, CO2-neutrality, flexibility, low density, and low cost, natural fibre (NF) can have a significant impact on the area of fibre reinforced polymer composite (FRPC) as a reinforcing material. Banana fiber (BF)/calotropis gigantea fiber (CGF) could be a potential candidate for synthetic FRPC replacement. Plant derive banana and calotropis gigantea fibers are valuable NFs that are abundantly available in Bangladesh. The purpose of this …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 9, Issue 2, 2022 · pp. 1–11 Read article
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Enhancing Strength and Durability: A Study of Mortar Blocks with Steel Slag Incorporation and the Development of Steel Slag Lime and Cement Blocks
Abstract: This study is focused on investigating the strength and durability properties of mortar cubes made with slag cement and incorporating Ultra Fine Steel Slag (SS) as a potential replacement for natural fine aggregates (FNA). In some instances, the cement was entirely replaced with hydrated lime to develop the blocks. A battery of tests, including assessments of compressive strength, acid resistance, sulfate resistance, water absorption, and void analysis, were carried out …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 233–246 Read article
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Exploring the Luminescent Behavior of Dysprosium-Doped Halo-sulphate Compounds
Abstract: In essence, this study aims toward understanding the photo-luminescent properties of Dy³⁺ halogenated sulfates, viz., synthesis, characterization, and luminescent behavior of the materials. Dysprosium ions are introduced into the halo-sulfate matrices to investigate their suitability for solid-state lighting applications. The aim of the study is to explain the mechanisms of the photo luminescence of Dy³⁺ and study the influence of the doping concentration on luminescence efficiency and the thermal stability …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 3, 2025 · pp. 01–06 Read article
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Understanding the Dynamics of Biogenic and Anthropogenic Aerosols in the Atmosphere
Abstract: This study explores the complex interactions between marine aerosols, biogenic organic matter, and anthropogenic pollutants, highlighting their implications for climate and air quality. It is established that submicron-sized marine aerosols, primarily of biogenic origin, play a crucial role in cloud condensation nuclei (CCN) concentration, particularly during periods of high biological oceanic activity (HBA). The chemical composition of marine aerosols is significantly influenced by the ocean's annual biological cycle, with seasonal …
Published in International Journal of Atmosphere · Vol. 1, Issue 1, 2024 · pp. 15–22 Read article
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Synthesis and Applications of Copper- Doped Pyridine Precipitate
Abstract: A metal organic nonlinear optical single crystal, copper doped pyridine material, was created at room temperature using the slow evaporation solution growth technique (SEST). The developed material's crystalline nature was revealed by a powder X-ray diffraction (XRD) analysis. Single crystal XRD study shows that the material synthesized possesses monoclinic system of cell parameters, a = 11.44 Å, b = 7.92 Å, C = 11.74 Å and alpha and gamma is …
Published in Journal of Materials & Metallurgical Engineering · Vol. 15, Issue 1, 2025 · pp. 51–60 Read article
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Tribological Assessment of Chemically Modified Jatropha Curcas Oil Developed by Addition of Graphite Nanoparticles for Biolubricant Applications
Abstract: As an alternative to petroleum-based lubricants, environmentally friendly bio-based lubricants are gaining popularity in the lubrication industry. A sustainable bio-based lubricant, Jatropha Curcas Oil (JCO) incorporates nanoparticles as additives. Nevertheless, this oil cannot be used directly as a biolubricant due to its low oxidative stability. By redesigning the oil's molecular structure through chemical modification, this restriction can be overcome. Epoxidation and oxirane ringopening were the two steps used in this …
Published in Journal of Polymer & Composites · Vol. 13, Issue 2, 2025 · pp. 47–58 Read article
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Chemical and Electrocoagulation for Chromium (VI) Removal from Galvanic Effluents
Abstract: Industrial effluents usually contain 10 to 500 mg/l Cr(VI); that according to internationalenvironmental rules must be set at permissible levels before being discharged into the environment.The upper permitted levels of chromium are 0.5 mg/l for effluent discharge and 0.01 mg/l for drinkingwater respectively. Hexavalent chromium is a very toxic heavy metal moiety occurring in variousindustrial wastewaters, such as electroplating, anodizing, tanning and dyeing effluents. Industrialeffluents may contain hundreds of mg/l …
Published in Journal of Polymer & Composites · Vol. 9, Issue 1, 2021 · pp. 49–55 Read article
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An Investigation on Influence of Gamma Irradiation and Doping on Chemical Structure and Optical Properties of Conducting Polypyrrole
Abstract: In this study the authors report on effect of gamma irradiation and doping (bromine, iodine and sulfate ion) on chemical structure and optical, electronic properties of poly pyrrole. Optical absorption spectrum of PPY shown absorption bands centered around 36.2.5nm (peak 1), 450 nm (peak2) and 525 nm (peak 3) positions Gamma irradiation resulted in broaden of peak A together with a band shift of 45- 525 nm and disappearance peaks …
Published in Journal of Polymer & Composites · Vol. 14, Issue 5, 2026 Read article
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Examining the Medicinal Role of Alum in Unani Medicine: An Overview of Traditional Uses and Scientific Investigations
Abstract: Alum, also known as Shibb-e-Yamani, is a crystalline substance devoid of color, transparent, and lacking any scent. It possesses a sweetish astringent flavor and is categorized as a hydrated double salt. Typically, it comprises aluminum sulfate, water molecules as part of its structure, and the sulfate of another element. Frequently, it's found mixed with impurities. To render it suitable for medicinal usage, a process involves dissolving it in boiling water, …
Published in Journal of AYUSH: Ayurveda, Yoga, Unani, Siddha and Homeopathy · Vol. 13, Issue 1, 2024 · pp. 1–9 Read article
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Unraveling the Nexus: Parkinson's Disease, Alpha-synuclein, Desulfovibrio, and the Gut Microbiome
Abstract: Parkinson's disease (PD) is now recognized as a chronic condition which is once considered a highly intricate disorder involving the central, autonomic, and enteric nervous systems. The prevailing perspective attributes the disease by the formation of Lewy bodies, primarily triggered by the misfolding of α-Synuclein, leading to the demise of dopaminergic neurons in the substantia nigra. Constipation, one of the most common non-motor symptoms in PD patients, is believed to …
Published in International Journal of Cell Biology and Cellular Functions · Vol. 2, Issue 1, 2024 · pp. 18–28 Read article
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Utilization of Banana Peel Biopolymer as a Natural Coagulant for Wastewater Treatment: A Sustainable Approach to Bio-Composite Applications
Abstract: This study explores an eco-innovative approach to wastewater treatment by utilizing banana peel powder (BPP) as a sustainable, low-cost bio-coagulant. Although effective, conventional chemical coagulants like aluminum sulfate and synthetic polymers are often non-biodegradable, toxic, and economically burdensome, particularly in decentralized or low-resource settings. In contrast, BPP—an agro-waste material rich in bioactive functional groups such as hydroxyl, carboxyl, and phenolic compounds—provides a renewable and environmentally friendly alternative. To enhance its …
Published in Journal of Polymer & Composites · Vol. 13, Issue 4, 2025 · pp. 106–115 Read article
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An Experimental Investigation on the Determination of Critical Micelle Concentration (CMC) Of Various Surfactants Using the Surface Tension Method
Abstract: This study primarily focuses on the experimental investigation for determining the critical micelle concentration (CMC) of various surfactants that are commonly employed to enhance the stability of nanoparticles in base fluids. In this context, three surfactants belonging to the anionic category—Sodium Dodecyl Sulfate (SDS), Sodium Lauryl Sulfate (SLS), and the bio-surfactant Rhamnolipid—were selected, along with one non-ionic polymer, Polyvinylpyrrolidone (PVP), which is used as a surfactant. The CMC of each …
Published in Journal of Polymer & Composites · Vol. 13, Issue 5, 2025 · pp. 145–153 Read article
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Cost Effective Wastewater Treatment Technique for Bara Nulla Peshawar
Abstract: Various samples from Bara Nulla in Peshawar were collected and analyzed, using standard methods for various important wastewater parameters. The effluent discharge from the nulla is highly polluted in terms of its physical and chemical properties. Most of it parameters do not meet the requirements of Pak-EPA NEQS limitations set for industrial and domestic effluent discharge. The average wastewater characteristics of nulla in terms of COD, BOD, TDS, TSS, turbidity …
Published in Journal of Geotechnical Engineering · Vol. 2, Issue 1, 2015 · pp. 24–28 Read article
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Enhancement of Electrical Conductivity of Laterite Derived Ferric Oxide to Facilitate As Anode Materials
Abstract: Laterite is a mineral abundant in ferric oxide and various impurities, including aluminum oxide and silicon dioxide. The extraction of ferric oxide from laterite is accomplished through a cost-effective leaching process employing HCl, NaOH, and Sodium dodecyl sulfate (SDS). Characterization using Xray diffraction (XRD) confirmed the synthesized particles to be α-Hematite nano particles, with an average particle size of 94.21 nm, predominantly falling within the range of 90 nm to …
Published in Journal of Materials & Metallurgical Engineering · Vol. 13, Issue 3, 2023 · pp. 1–11 Read article
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Water Quality Changes in Balu River during Non-Monsoon and Monsoon Period
Abstract: Dhaka, the capital of Bangladesh, is surrounded by numerous rivers and canals, such as Turag, Buriganga, Dhaleswari, Balu, and Shitalakshya. Among those, Balu river is one of the important water resources to supply drinking water for Dhaka metropolitan area (DMA), which is the 11thlargest city in the world. Nearly 14 million people reside in DMA. Major industrial zones in and around Dhaka are disposing untreated water directly in Balu river …
Published in Journal of Water Resource Engineering and Management · Vol. 2, Issue 3, 2015 · pp. 38–49 Read article
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Potable Water Quality Analysis of Akbarpura, KPK, Pakistan
Abstract: In Pakistan, supply of safe drinking water of international standard is very limited. Only around 30% population has access to piped drinking water, which has rarely been completely tested for health safety. About 70% population is drinking water of unknown quality. The only testing comes through human consumption and getting sick. This study is designed to investigate the water quality problems of Akbarpura, Khyber Pukhtunkhwa. Samples were collected from the …
Published in Recent Trends in Civil Engineering & Technology · Vol. 5, Issue 1, 2015 · pp. 19–27 Read article
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A Critical Review on Semi-solid and Solid Lubricants for Industrial Applications
Abstract: Friction materials are very important for the safe moving of automobiles and the safety of people. As the pad slides against its match, the moving energy is turned into heat by the friction. As the vehicle's speed is lost as heat in the pads and rotors, the friction at the contact slows it down. Lubricants are compounds that are applied to moving parts to reduce friction and wear. Used primarily …
Published in Journal of Polymer & Composites · Vol. 11, Issue 8, 2023 · pp. 105–114 Read article
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Development of Anti IgG Polyclonal Antibody Against Canine IgG and Their Roles in Diagnostic Purposes
Abstract: IgG plays an important part in immunological studies and also in living bodies for providing secondary immune response which triggers as passive immunization against harmful pathogens in dogs. Purpose: The aim of this investigation is to separate, identify, and refine immunoglobulin G from canine serum. Methods: Ammonium sulphate precipitation was used to separate the dog's serum, which was then concentrated over night in a dialysis bag inside of a refrigerator. …
Published in International Journal of Vaccines · Vol. 1, Issue 2, 2024 · pp. 01–06 Read article