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35 articles for “adsorption isotherm”
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Adsorption Isotherm Study for Activated Carbon Produced from Cassava Peel
Abstract: Adsorption isotherm study of Activated Carbon produced from cassava peel was carried out using phenol solution as the adsorbate. Langmuir and Freundlich isotherm models were employed for the study. Varying ratios of 1:1, 0.75:1, 0.5:1, and 0.25:1 activating agent to cassava peel were used for the formulation of the Activated Carbon. The Freundlich R2 value for the 1:1, 0.75:1, 0.5:1, and 0.25:1 formulations was 0.822, 0.979, 0.971 and 0.974, respectively. …
Published in Journal of Materials & Metallurgical Engineering · Vol. 4, Issue 3, 2014 · pp. 8–12 Read article
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Biosorption of Fluoride from Aqueous Solution Using Ulva fasciata sp.: A Marine Green Algae
Abstract: Water is a useful and vital natural resource for sustaining life and environment that we have always thought to be available in abundance and free gift of nature. Enhanced industrial activity during recent decades has led to the discharge of unprecedented volumes of industrial waste water, which is a serious cause of environmental degradation. Excessive fluoride concentrations have been reported in ground waters of more than 20 developed and developing …
Published in Emerging Trends in Chemical Engineering · Vol. 4, Issue 2, 2017 · pp. 45–53 Read article
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Evaluation of AGO Adsorption Rate Isotherms Using Adsorbent Formulation of Plantain Agbagba1 and Clay of Different Mix Ratio in Pollutant Remediation in Salt Water
Abstract: The application of some agro-based materials in combination with day soil, for the production of adsorbents were investigated in relationship to their performance in AGO (Diesel) treatment in a batch process unit. The research allows the model concept of Langmuir isotherm, Frundlich isotherm and Temkin Isotherm for the determination of the adsorption rate of the various isotherms with respect to the effect of the particle size and the mixed ratios …
Published in International Journal of Pollution: Prevention & Control · Vol. 2, Issue 2, 2024 · pp. 31–42 Read article
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Aluminum and its Alloys to Recover from Corrosive Weather
Abstract: Corrosion is defined as deterioration of material, usually metal, because of reaction with its environment and which requires presence of an anode, a cathode, an electrolyte and an electrical circuit. Aluminum and its alloys are reactive to weather of exposure, e.g. ambient, acid and alkalis. Solid to pigments are prevented from corrosion by using inhibitors. Organic inhibitors are ever praised due to non-toxic performances. Basic processes are surface adsorption to …
Published in Emerging Trends in Chemical Engineering · Vol. 6, Issue 2, 2019 · pp. 7–19 Read article
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Organophilicization of Bentonite by HDTMA+ and TMPA+ Cations for Sorption of 2,4-Dichlorophenol (2,4-DCP) in Aqueous Solution
Abstract: Bentonite (Bt) was converted to organoclays by intercalation of cationic surfactants into its interlayer space. Two types of organoclays were synthesized from HDTMA and TMPA at 100% CEC, and the adsorbents were characterized by FTIR, XRD and SEM. The adsorption capacities of Bt and the organoclays for the removal of 2,4-dichlorophrnol (2,4-DCP) from aqueous solutions were tested under different conditions. Two adsorption isotherm models (Langmuir and Freundlich isotherms) were used …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 3, 2020 · pp. 22–32 Read article
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Isotherm and Kinetic Studies of Methylene Blue Dye Adsorption Using Sulfuric Acid Activated Nigerian Montmorillonite Clay
Abstract: The Presence of methylene blue and other basic dyes in water causes various harmful effects for both human and aquatic species. In this study, montmorillonite clay in its raw and acid (0.5M H2SO4) activated states were investigated for the sorption of methylene blue dye. The structural changes due to acid treatment were analyzed by X-ray diffraction (XRD) and scanning electron microscope (SEM). The studied parameters that affect adsorption efficiency were …
Published in Journal of Catalyst & Catalysis · Vol. 7, Issue 2, 2020 · pp. 37–47 Read article
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A Parametric Study of Methylene Blue Adsorption Using Low-cost Adsorbent
Abstract: This research focused on the adsorptive capacity of activated carbonaceous substance made from the peel of Spanish cherries to remove methylene blue dye from wastewater. Through batch adsorption tests, the impact of several variables on the percentage of dye removal was examined. These variables included adsorbent preparation temperature, adsorbent dosages, initial concentration of dye solution, process time, pH of dye solution, and operation temperature. It was found that using 1 …
Published in Journal of Thin Films, Coating Science Technology & Application · Vol. 10, Issue 3, 2023 · pp. 10–16 Read article
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Performance Evaluation of H 2 SO 4 -Rice Husk-Moss Adsorbent for the Removal of Zn (II) Ion from the Effluent of Science Equipment Development Institute (SEDI)
Abstract: This research was carried out to investigate the potential of green algae (moss) with the support of H 2 SO 4 treated rice husk activated carbon using batch adsorption process for the removal of Zn (II) ions from SEDI industrial effluent. The rice husk- moss algae was activated using H 2 SO 4 . The effluent was characterized using atomic absorption spectrophotometer with initial concentration values of 12.3 mg/l for …
Published in Journal of Catalyst & Catalysis · Vol. 9, Issue 1, 2022 · pp. 6–15 Read article
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Adsorption of Methylene Blue Dye from Aqueous Solution Using Polyaniline/Xanthan Gum Nanocomposite: Kinetic and Isotherm Studies
Abstract: ABSTRACTIn the present study, adsorptive properties of polyaniline/xanthan gum nanocomposite were investigated for methylene blue (MB) dye in aqueous solution. The effects of different parameters, namely adsorption time, adsorbent dose, pH and initial dye concentration were on dye adsorption were investigated. The results revealed that a rise se in pH lead to a significant increase in adsorption efficiency. Optimum adsorption time and nanocomposite dose were obtained 60 min and 0.075 …
Published in Journal of Polymer & Composites · Vol. 7, Issue 1, 2019 · pp. 17–26 Read article
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Synthesis and Evaluation of MgO-Supported Activated Carbon for Carbon dioxide Capture
Abstract: Carbon dioxide (CO₂) capture has emerged as a critical strategy for mitigating greenhouse gas emissions and addressing global climate change. In this study, a series of MgO-supported activated carbon adsorbents containing 2, 4, 6, 8, and 10 wt% MgO were successfully synthesized using the impregnation method to evaluate their CO₂ adsorption performance. The structural, chemical, and surface properties of the prepared materials were characterized using powder X-ray diffraction (PXRD), Fourier-transform …
Published in Journal of Catalyst & Catalysis · Vol. 13, Issue 3, 2026 · pp. 53–57 Read article
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Eco-friendly Corrosion Inhibitors for N80 Steel in Hydrochloric Acid
Abstract: An important method of protecting metallic materials against deterioration due to acid corrosion is by the use of corrosion inhibitors. In the present investigation, corrosion inhibition study of two compounds,1-(2-hydroxyethyl)-2-ethylimidazoline(Inh I) and 1-(2-hydroxyethyl)-2-decylimidazoline (Inh II) have been performed for oil-well tubular steel (N80) in 15% HCl using weight loss, electrochemical polarization, AC impedance and SEM. The inhibition efficiencies of the inhibitors follow the sequence, Inh II > Inh I. The …
Published in Journal of Materials & Metallurgical Engineering · Vol. 2, Issue 1-3, 2012 · pp. 71–83 Read article
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Polymer Composite-Supported Jackfruit Peel Adsorbent for Enhanced Copper (II) Removal from Wastewater: Batch Equilibrium and Isotherm Analysis
Abstract: The increasing concern of disposal of copper-containing effluents into the environment has led to heightened interest in designing cost-effective, eco-friendly and scalable adsorbent systems. Traditional metals and synthetically engineered sorbents prove to be effective; however, these systems are energy intensive. Agricultural residues entrapped in polymer composite systems constitute an economically feasible solution to this environmental challenge. This work reports on the design, characterization and performance evaluation of an economical adsorbent …
Published in Journal of Polymer & Composites · Vol. 14, Issue 3, 2026 · pp. 375–390 Read article
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Effect of Temperature on Inhibitory Efficacy of Tamarindus indica fruit extract on acid corrosion of Aluminium
Abstract: An attempt has been made to investigate the anti-corrosive propensity of ethanolic extract of Tamarindus indica fruit at elevated temperature between 303 to 343 K, so as to replace the exploitation of toxic chemicals as corrosion inhibitors. Inhibition efficiency has been observed significantly high (84.06%) at room temperature at concentration 0.45 %. The inhibition efficiency is found to increase with increasing concentration of extract and decrease with rise in temperature. …
Published in Recent Trends in Fluid Mechanics · Vol. 10, Issue 3, 2023 · pp. 42–50 Read article
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Corrosion Testing and Evaluation of Inhibitors Performance
Abstract: Choosing test methods that will analyze specific needs, like film barrier strength that real field settings is essential for the proper evaluation and development of inhibitors. The flowing loop and the bubble test are two examples of the first and second, respectively. Corrosion is measured by gravimetric, electrical noise, alternating-current impedance, potentiodynamic measurement, linear polarization and gravimetric. The inhibitors action can be analyzed in different corrosive environments. Their performance is …
Published in Journal of Materials & Metallurgical Engineering · Vol. 16, Issue 1, 2026 · pp. 82–88 Read article
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Characterization and Optimization of Neem Leaves and Moringa Seed Husk-based Composite Activated Carbon for Efficient Adsorption of Methylene Blue Dye
Abstract: The research in question was meticulously conducted within the premises of the Nigerian Liquefied Gas (NLG) Engineering laboratory, situated at the esteemed University of Maiduguri, Nigeria. This study focuses on the development and characterization of a composite material derived from neem leaves (NL) and Moringa seed husk (MSH) to adsorb methylene blue (MB) dye effluent. The synthesis process involved pyrolyzing MSH and NL at 400°C to produce MSH and NL …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 13, Issue 3, 2023 · pp. 12–22 Read article
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Colour Removal from Effluents Using Micromaterials
Abstract: In this study, the ability of Micromaterials to adsorb color from an aqueous solution was investigated by using flocculants and activated carbon prepared from Rice Bran, an agricultural by-product, and batch mode adsorption experiments were conducted. The influence of various factors such as initial concentration (20, 40, 60, 80 mg/L), contact time, pH (4.0-9.0), and dosage on the adsorption capacity was investigated and optimal experimental conditions were ascertained. Adsorption data …
Published in Journal of Energy, Environment & Carbon Credits · Vol. 2, Issue 1-3, 2012 · pp. 1–8 Read article
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Evaluating the Influence of Temperature on the Efficacy of Capparis Decidua Extract as a Corrosion Inhibitor for Aluminium in Acidic Media
Abstract: The study investigates the anti-corrosive properties of the ethanolic extract of Capparis decidua fruit on aluminum corrosion in a 2N HCl acid solution, using a weight loss technique at temperatures ranging from 303 to 343 K. At a concentration of 0.45%, the inhibition efficiency (η%) is notably high, reaching 63.15% at 303 K. The inhibitor's adsorption behavior on the aluminum surface is consistent with the Langmuir adsorption isotherm, suggesting that …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 15, Issue 3, 2024 · pp. 58–65 Read article
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Performance Evaluation of Green Walnut Husk Waste Extract for Inhibiting Aluminium 8088 Corrosion in Acidic Solution
Abstract: The cumulative call for environmental and supportable corrosion inhibitors has obsessed curiosity in exploiting plant-based agronomic surplus resources. Presented research work discovers the corrosion inhibition probable of green walnut husk extract(GWH)—a normal and plentiful agro-waste—on Aluminium 8088 alloy in an acidic medium. Aluminium 8088, however identified for its corrosion resistance, is vulnerable to squalor in highly acidic settings, affectation trials in several industrial claims. GWH extract act as an ecologically …
Published in Journal of Modern Chemistry & Chemical Technology · Vol. 17, Issue 1, 2026 · pp. 45–59 Read article
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Evaluation of Tectona Grandis Leaf Extract As A Green Corrosion Inhibitor for Aluminium in 1M NaOH
Abstract: A kind of tropical hardwood tree called the Tectona grandis tree that is indigenous to India. The name "teak tree" is another common name for this kind of tree. It is a member of the plant family that is referred to as Lamiaceae. The primary purpose of this research is to investigate whether or not the plant extract has a corrosion-inhibiting quality. In this study, an aqueous extract of Tectona …
Published in Journal of Polymer & Composites · Vol. 2, Issue 2, 2023 · pp. 41–50 Read article
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Photochemical Detoxification of Arsenic- and Mercury-Contaminated Soils: Geochemical Mechanisms and Pathways
Abstract: This study evaluates the geochemical aspects of soil detoxification in areas contaminated with arsenic (As) and mercury (Hg), emphasizing sustainable strategies for improving soil health and ensuring safe crop production. The research provides an ecological and toxicological assessment of regional soils and classifies them base on the concentration and mobility of toxic elements. Although the current levels of As and Hg do not yet present a critical risk to agricultural …
Published in International Journal of Photochemistry and Photochemical Research · Vol. 4, Issue 1, 2026 · pp. 06–10 Read article