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621
Simulation of Environmental and Furnace Working Parameters Effect on Gas Carburizing Surface Treatment
Published 2009-11-01“…As a final point, by inputting the amount of generated gases in the endothermic gas generator (air to fuel ratio), furnace temperature, furnace internal pressure, ambient temperature and humidity in the programmed software, the percent of surface carbon on the steel part is calculated and the effect of the mentioned parameters on the surface carbon content can also be studied. …”
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622
Application of Three Types of Aminated Lignins for Efficient Removal of Cd(II) and Pb(II) Ions in Aqueous Solution
Published 2022-11-01“…Thermodynamic studies revealed that the adsorption processes of Cd(II) and Pb(II) using the ALs were spontaneous and endothermic. These results demonstrate that ALs are promising adsorbents for the removal of Cd(II) and Pb(II) metal ions.…”
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623
Biosorption of Cu2+ onto Biyological Waste Nitrification Organisms
Published 2020-01-01“…The results confirming that the biosorption reaction of Cu2+ on the DWNO was thought to be endothermic. A comparison of the kinetic models such as pseudo first and second-order kinetics, intraparticle diffusion, and Elovich on the sorption rate demonstrated that the system was best described by the pseudo second-order kinetic model. …”
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624
Adsorption of Heavy Metal Ions on Pomegranate () Peel: Removal and Recovery of Cr(VI) Ions from a Multi-metal Ion System
Published 2010-03-01“…Thermodynamic parameters such as ΔH 0 , ΔS 0 and ΔG 0 were evaluated, the adsorption process being endothermic and spontaneous in nature. The value of the mean free energy indicated that the adsorption process was chemical in nature. …”
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625
Elimination of a cationic dye in aqueous solution by adsorption on activated carbon: Optimization of analytical parameters, modeling and thermodynamic study
Published 2022-11-01“…The evaluation of thermodynamics parameters such as the Gibbs free energy ΔG° (−7.856 to −6.142 kJ/mol), positive enthalpy ΔH° (13.384 kJ/mol) and the change of entropy (63.46 J/mol K) indicated a spontaneous and endothermic nature of the reaction with a chemisorption process. …”
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626
Graphitic C3N4 incorporated chitosan-poly(vinyl alcohol) blend nanocomposites for the removal of Cu(II) and Cr(VI) ions from aqueous solutions
Published 2024-01-01“…Through thermodynamic studies, it was revealed that the adsorption process was both endothermic and spontaneous in nature. Furthermore, desorption studies confirmed that the material could be regenerated, making it reusable. …”
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627
Uranium Isotope (U-232) Removal from Waters by Biochar Fibers: An Adsorption Study in the Sub-Picomolar Concentration Range
Published 2022-10-01“…The ionic strength and temperature effect indicate that the adsorption is based on the formation of inner-sphere complexes, and is an endothermic and entropy-driven process (ΔH° and ΔS° > 0), respectively. …”
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628
Synthesis and characterization of nanocomposites containing Buchholzia coriacea pod decorated with multi-walled carbon nanotubes for remediation of rhodamine B dye from aqueous sol...
Published 2023-11-01“…Thermodynamic parameters such as ∆G°, ∆H° and ∆S° reveal that the uptake of RhB onto WK and WKM was spontaneous and endothermic. Meanwhile, WKM demonstrated excellent reusability. …”
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629
NiTi<sub>2</sub>, a New Liquid Glass
Published 2023-10-01“…Many endothermic liquid–liquid transitions, occurring at a temperature T<sub>n+</sub> above the melting temperature T<sub>m</sub>, are related to previous exothermic transitions, occurring at a temperature T<sub>x</sub> after glass formation below T<sub>g</sub>, with or without attached crystallization and predicted by the nonclassical homogenous nucleation equation. …”
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630
New environmental friendly corrosion inhibitor of mild steel in hydrochloric acid solution: Adsorption and thermal studies
Published 2020-01-01“…From the thermodynamic parameters, it was found that the conversion of thio form to mercapto form is spontaneous and endothermic.…”
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631
Eco-Friendly Synthesis of Copper Nanoparticles from Fiber of Trapa natans L. Shells and Their Impregnation Onto Polyamide-12 for Environmental Applications
Published 2023-08-01“…The adsorption process was endothermic, spontaneous, and physical. The rapid desorption of dye molecules confirms the potential, and practicality of the nanocomposite as a promising adsorbent for decolorizing colored wastewater on an industrial scale.…”
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632
Density Functional Theory (DFT) approach for kinetic and thermodynamic study of reaction mechanism of copper (II) complex from 2-hydrazinyl-4,5-dihydro-1h-imidazole and anthracene-...
Published 2020-02-01“…The kinetics study shows that the reaction mechanism for the formation of copper (II) complex follows pseudo-first order and second order reaction with high correlation while the thermodynamic study indicates that the overall reaction is non-spontaneous and endothermic.…”
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633
Equilibrium Adsorption of Single Component and Binary Mixtures of Aromatic Compounds onto a Polyfunctional Hypercrosslinked Polymeric Adsorbent
Published 2004-02-01“…The Freundlich model gave good fits to both the single and binary adsorption isotherms, indicating an endothermic and favourable adsorption process. The positive value of ΔH 0 for the single solute system was in the range of 30–60 kJ/mol showing the existence of integrated processes involving chemical interaction. …”
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634
A new robust regenerative turbo-reactor concept for clean hydrocarbon cracking
Published 2022“…This paper offers an attractive solution to potentially decarbonise the cracking industry by direct renewable electrification whilst also improving the efficiency of energy transfer and enhancing the quality of the overall cracking process. Controlled endothermic cracking reactions are generated by direct mechanical energy transfer using a new electric-motor-driven turbo-reactor to replace the fossil-fuelled radiant unit in the conventional cracking plant. …”
Journal article -
635
Adsorption of Nonylphenol to Multi-Walled Carbon Nanotubes: Kinetics and Isotherm Study
Published 2018“…The thermodynamic analysis demonstrated the NP adsorption by MWCNTs was thermodynamically satisfactory and, for the most part, endothermic as in the case of phenol adsorption. The result of the current study demonstrated the significance of free binding sites and the pore size of MWCNTs in the NP adsorption. …”
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636
Equilibrium modeling, kinetic and thermodynamic studies on the adsorption of basic dye by low-cost adsorbent
Published 2011“…The positive value of the enthalpy change (17.89 kJ/mol) indicates that the adsorption is endothermic process. The results indicate that petai seed adsorbent is suitable as adsorbent material for adsorption of MB dye from aqueous solutions.…”
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637
Corncob Modified By Cufe Layered For Oxytetracycline Removal From Aqueous Solution
Published 2022“…The thermodynamics of OTC-CCAC adsorption proves the endothermic nature as follows the effect of temperature study..…”
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Monograph -
638
Palm Shell Based Activated Carbon Modified By Cufe Layered For Amoxicillin Removal From Aqueous Solution
Published 2022“…Amoxicillin - PSAC adsorption system showed an endothermic nature.…”
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Monograph -
639
One-step ZnCl2/FeCl3 composites preparation of magnetic activated carbon for effective adsorption of rhodamine B dye
Published 2022“…The adsorption of RB is an endothermic and spontaneous process. The activation energy of 24.1–28.9 kJ/mol indicates that the process is physisorption. …”
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640
Biosorption of mercury from aqueous solution and oilfield produced water by pristine and sulfur functionalized rice residues
Published 2015“…The biosorption process was endothermic, feasible and spontaneous in nature. The biosorbents showed good selectivity towards Hg(II) biosorption from the oilfield produced water.…”
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