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1381
Microstructure and Mechanical Properties of Ultrafine Quaternary Al-Cu-Si-Mg Eutectic Alloy
Published 2021-12-01“…This alloy exhibits a single endothermic DSC peak with a melting temperature of 509 °C upon heating, suggesting a eutectic reaction. …”
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1382
Fe<sub>3</sub>O<sub>4</sub> Nanoparticles Loaded Bentonite/Sawdust Interface for the Removal of Methylene Blue: Insights into Adsorption Performance and Mechanism via Experiments a...
Published 2022-11-01“…The MB adsorption capacity at saturation (<i>Q<sub>sat</sub></i>) increased from 829 to 849 mg/g with temperature, suggesting endothermic interactions. Energetically, the MB uptake by BE/SD–MNPs was controlled by physical interactions (i.e., adsorption energy < 20 kJ/mol). …”
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1383
4-picoline adsorption from aqueous solution by using baggage fly ash (BFA): Parametric, kinetic and thermodynamic aspects
Published 2022-11-01“…It further demonstrated that 4-picoline adsorption on BFA is an endothermic process. HIGHLIGHTS This study confirmed that 4-picoline can effectively be removed from wastewater by using baggage fly ash as an adsorbent.; The adsorption kinetics of 4-picoline on baggage fly ash follow the pseudo-second order rate expression.; The Freundlich and Langmuir adsorption isotherm models are best suited for elimination of 4-picoline from wastewater using BFA.; The maximum removal of 4-picoline was found up to 85.83%…”
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1384
Acid leaching of heavy metals from contaminated soil collected from Jeddah, Saudi Arabia: kinetic and thermodynamics studies
Published 2015-09-01“…Also, the thermodynamic study showed that the leaching process was spontaneous, endothermic and accompanied with increase in the entropy. …”
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1385
Use of Oxalic Acid-Modified Rice Husk for the Adsorption of Neutral Red from Aqueous Solutions
Published 2010-08-01“…Calculated thermodynamic parameters showed that the adsorption of NR onto MRH was feasible, spontaneous and endothermic under the studied conditions. The carboxyl groups on the surface of the modified rice husk (MRH) were primarily responsible for the sorption of NR. …”
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1386
Elimination of Chromium (VI) and Nickel (II) Ions in a Packed Column Using Oil Palm Bagasse and Yam Peels
Published 2022-04-01“…From the adjustment of the breakthrough curve to the models, it was determined that the model best able to adjust the data was the Thomas model, and the thermodynamic parameters of Cr(VI) and Ni(II) removal suggest that the process on YP is endothermic, while on OPB it is exothermic. In both biomaterials, the process is controlled by spontaneous chemisorption with a great affinity of the active centers for the ions.…”
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1387
Convective and microwave drying kinetics of white cabbage (Brassica oleracae var capitata L.): Mathematical modelling, thermodynamic properties, energy consumption and reconstituti...
Published 2023-06-01“…Thermodynamic analysis of the dryers revealed that the drying process was endergonic and endothermic. Drying methods and water temperature influenced the rate of reconstitution of WC.…”
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1388
Exploring the potential of fish waste (Sardinella fimbriata) through pyrolysis: A study of kinetics and thermodynamics using isoconversional methods
Published 2023-01-01“…The analysis of thermodynamic parameters showed positive values of enthalpy change and Gibbs energy change for S. fimbriata FW pyrolysis, suggesting that the process is endothermic and non-spontaneous, while negative values of entropy change were observed across all conversion degrees as a result of the breakdown of complex organic molecules into simpler compounds. …”
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1389
Microwave Heating for Synthesis of Carbonaceous Adsorbents for Removal of Toxic Organic and Inorganic Contaminants
Published 2023-09-01“…The study affirmed that the adsorption of organic dyes onto the resultant carbonaceous adsorbents was both spontaneous and endothermic. The study also demonstrated that the presence of an air stream during the NO<sub>2</sub> adsorption process and prehumidization of the adsorbent with humid air had a beneficial effect on the obtained sorption capacities. …”
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1390
ZnO-Loaded SA-g-Poly (AC-co-EBS) Hydrogel Nanocomposite as an Efficient Adsorption of Tetracycline and Phenol: Kinetics and Thermodynamic Models
Published 2024-02-01“…The increase in adsorbent amount 0.01–0.1 g, the percentage removal of tetracycline (TC) and phenol (PH) increased from 60.639–97.085 and 487.71–94.05%, respectively, and Qe decreased 606.39–97.08 to 487.1831–94.456 mg/g on hydrogel. The ∆H value is endothermic. All processes of adsorption are considered spontaneous, from a negative value of ∆G to a positive value of ∆S. …”
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1391
Effective Parameters on Removal of Rhodamine B from Colored Wastewater by Nano polyaniline/Sawdust Composite
Published 2019-10-01“…Thermodynamic studies showed that the removed dye was spontaneous, endothermic and chemical sorption that followed second order kinetic model. …”
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1392
Binary Polymeric Surfactant Mixtures for the Development of Novel Loteprednol Etabonate Nanomicellar Eyedrops
Published 2023-06-01“…The disappearance of the endothermic peak of LE in the DSC analysis confirmed the interactions of LE with the polymeric surfactants. …”
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1393
A New Perspective on Adsorbent Materials Based Impregnated MgSiO<sub>3</sub> with Crown Ethers for Palladium Recovery
Published 2021-10-01“…Thermodynamic studies highlight that the adsorption of Pd(II) on the two studied materials are spontaneous and endothermic processes. The positive values of the entropy (ΔS<sup>0</sup>) suggest that the studied adsorption processes show a higher disorder at the liquid/solid interface. …”
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1394
Electrified Hydrogen Production from Methane for PEM Fuel Cells Feeding: A Review
Published 2022-05-01“…The purpose of this review is to provide an overview of the latest research on the electrification of endothermic industrial chemical processes aimed at the production of H<sub>2</sub> from methane and its use for energy production through proton exchange membrane fuel cells (PEMFC). …”
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1395
Zeolite Waste Characterization and Use as Low-Cost, Ecofriendly, and Sustainable Material for Malachite Green and Methylene Blue Dyes Removal: Box–Behnken Design, Kinetics, and The...
Published 2022-07-01“…Thermodynamics studies showed that both adsorption systems are spontaneous and endothermic.…”
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1396
Structural Properties of Graphene Oxide Prepared from Graphite by Three Different Methods and the Effect on Removal of Cr(VI) from Aqueous Solution
Published 2023-01-01“…Moreover, the adsorption thermodynamic study showed that these adsorption processes of Cr(VI) by the three types of GOs at 298.15 K to 323.15 K are endothermic, entropy-driven and thermodynamically spontaneous and feasible. …”
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1397
Equilibrium Study, Modeling and Optimization of Model Drug Adsorption Process by Sunflower Seed Shells
Published 2020-05-01“…The thermodynamic study showed that the adsorption was endothermic and spontaneous, according to its physisorption mechanism. …”
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1398
Adsorption Characteristics and Molecular Simulation of Malachite Green onto Modified Distillers’ Grains
Published 2022-01-01“…Moreover, the adsorption of MG dye by MDG is a spontaneous, endothermic, and increased entropy process. The results of molecular simulation showed that the mechanism of MG molecules onto MDG was mainly chemical adsorption. …”
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1399
Biochemical Characterization of the Copper Nitrite Reductase from <i>Neisseria gonorrhoeae</i>
Published 2023-08-01“…The thermostability of the enzyme was analyzed by differential scanning calorimetry, which shows a single endothermic transition in the thermogram, with a maximum at 94 °C, while the CD spectra in the visible region indicate the presence of the type 1 copper center up to 80 °C. …”
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1400
Effect of p-type doping on the electronic characteristics of negative electron affinity Al0.5Ga0.5N nanowire photocathodes
Published 2022-07-01“…The estimated formation energies show that the p-type doping of Al0.5Ga0.5N nanowire is an endothermic process. Also, in the substitutional doping process, it is easier for dopant atoms to replace Ga atoms than Al atoms. …”
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