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1241
Self-Assembled Aminated and TEMPO Cellulose Nanofibers (Am/TEMPO-CNF) Aerogel for Adsorptive Removal of Oxytetracycline and Chloramphenicol Antibiotics from Water
Published 2024-01-01“…Energetically, the adsorption was spontaneous and endothermic for both pollutants. In conclusion, the efficient removal rate and excellent reusability of Am/TEMPO-CNF indicate the strong potential of the adsorbent for antibiotics’ removal.…”
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1242
Preparation of Activated Carbon Derived from Jordanian Olive Cake and Functionalized with Cu/Cu<sub>2</sub>O/CuO for Adsorption of Phenolic Compounds from Olive Mill Wastewater
Published 2021-11-01“…The adsorption reaction was found to be spontaneous and endothermic where ∆H° and ∆G° were found to be 30.104 kJ/mol and −1.765, −2.839, and −3.723 (kJ/mol) at 311, 302, and 293 K, respectively. …”
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1243
Chitosan biopolymer membranes produced from fishery waste for the adsorption-based removal of lead ions from aqueous systems
Published 2023-07-01“…The adsorption process was discovered to be endothermic, with an adsorption enthalpy of 52 kJ/mol. …”
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1244
Removal of Safranin-T and Toluidine from Water through Gum Arabic/Acrylamide Hydrogel
Published 2022-01-01“…The adsorption isotherm and kinetics were better explained by the Langmuir isotherm and pseudo-second-order kinetic model whereas the adsorption thermodynamics depicted the endothermic, spontaneous, and favorable nature of the process. …”
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1245
Physicochemical, Thermal, and Morphological Properties of Chitosan Nanoparticles Produced by Ionic Gelation
Published 2022-11-01“…The DSC thermogram of CSNPs showed a double sharp endothermic peak at about 74.5 °C (ΔH = 122.00 J/g); further, the TGA thermograms indicated the total weight loss of STPP, CS, and CSNPs as nearly 3.30%, 63.60%, and 52.00%, respectively. …”
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1246
Adsorption of Crystal Violet Dye from Aqueous Solution using Industrial Pepper Seed Spent: Equilibrium, Thermodynamic, and Kinetic Studies
Published 2022-01-01“…The adsorption process was specified as a spontaneous and endothermic process owing to the thermodynamic parametrical values of ΔG0, ΔH0, and ΔS0. …”
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1247
Removal of Diazo Dye Direct Red 28 and Tetra Azo Dye Direct Black 22 Using Synthesized Magnetic Kaolin Supported Zinc Ferrite
Published 2022-06-01“…It was found that adsorption of DR-28 on KZF was exothermic while that of DB-22 was endothermic. The enthalpy changes (ΔH0) for the adsorption of DR-28 and DB-22 dyes on KZF were found to be -24.59 kJ/mol and 61.95 kJ/mol respectively. …”
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1248
Adsorption of hexavalent chromium by activated carbon obtained from a waste lignocellulosic material ( cores): Kinetic, equilibrium, and thermodynamic study
Published 2018-05-01“…Thermodynamic studies showed that the adsorption of Cr(VI) onto activated carbon was feasible, spontaneous, and endothermic at 20–40°C. This novel Z. jujuba rubidium carbonate-activated carbon derived from Z. jujuba core has been found to be effective for the removal of Cr(VI) and not harmful to the ecosystem.…”
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1249
Decarbonising the Portland and Other Cements—Via Simultaneous Feedstock Recycling and Carbon Conversions Sans External Catalysts
Published 2021-07-01“…The reaction intermediates of calcination reactions (calcium carbonate–calcium oxide or magnesium carbonate–magnesium oxide systems) can facilitate the endothermic carbon conversion reactions to syngas or hydrogen acting as non-soot forming catalysts. …”
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1250
Enhancing the solubility and dissolution rate of piperine via preparation of piperine–hydroxypropyl methylcellulose 2910 solid dispersion system using freeze-drying method
Published 2024-01-01“…Results: The solid dispersion characterization indicated a decrease in the melting points and endothermic peaks in the DSC analysis, a decrease in peak intensity in the PXRD patterns, no chemical interactions between active substances and polymers in the FTIR analysis, and significant morphological changes in the SEM analysis. …”
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1251
Black carbon derived PET plastic bottle waste and rice straw for sorption of Acid Red 27 dye: Machine learning approaches, kinetics, isotherm and thermodynamic studies.
Published 2023-01-01“…Thermodynamic study shows AR 27 adsorption is favourable, endothermic, and spontaneous. Environmental friendliness properties are confirmed by desorption studies and satisfactory results also attain from real wastewater experiments. …”
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1252
دراسة الخواص البنيوية والحرارية للفرايت – Co Zn باستخدام طريقتي IR و TG-DTA
Published 2018-12-01“…Moreover, the thermal gravimetric and differential thermal analyses TG-DTA reveal four principal endothermic peaks at 28, 130, 333 and 653 0C within temperature range 20 – 700 0C. …”
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1253
الدراسة الكيميائية البلورية للمركبات MIISn(OH)6 حيث MII= Zn, Fe, Cu, Ca
Published 2018-12-01“…The DTA curve demonstrates two endothermic effects and one exothermic effect for all products. …”
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1254
Optimization of the Ba+2 uptake in the formation process of hydrogels using central composite design: Kinetics and thermodynamic studies of malachite green removal by Ba-alginate p...
Published 2020-12-01“…The thermodynamic parameters were also determined by the Gibbs free energy function, confirming that the adsorption process was spontaneous and accompanied by an endothermic reaction.…”
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1255
Improving adsorption performance of l-ascorbic acid from aqueous solution using magnetic rice husk as an adsorbent: experimental and RSM modeling
Published 2023-07-01“…The values of ΔHo and ΔSo were measured 31.972 kJ/mol and 120.253 kJ/mol K, respectively, which proves the endothermic and irregularity nature of the adsorption of AA. …”
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1256
Use of Anionic Surfactant-Modified Activated Carbon for Efficient Adsorptive Removal of Crystal Violet Dye
Published 2022-01-01“…Thermodynamics studies revealed endothermicity of the process with negative ΔG values and positive ΔS and ΔH values. …”
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1257
Composite Activated Carbon Modified with AlCl<sub>3</sub> for the Effective Removal of Reactive Black 5 Dye from Wastewaters
Published 2023-05-01“…According to thermodynamics, it was found that the adsorption procedure was endothermic in nature (∆H<sup>0</sup> = 62.621 kJ/mol) and spontaneous (∆G<sup>0</sup> < 0), and according to the positive value of ∆S<sup>0</sup> 0.0293 (kJ/mol∙K), there is an increase in random interaction between solid and liquid interfaces. …”
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1258
Removal of 2,4-dichlorophenoxyacetic acid from aqueous solutions by modified magnetic nanoparticles with amino functional groups
Published 2020-04-01“…Besides, thermodynamic studies have shown that the adsorption process in the present study is endothermic and spontaneous. The experiments showed that Fe3O4@SiO2-NH2 synthesized nanoparticles could be an excellent method to remove 2,4- Dichlorophenoxyacetic acid contaminants from the aqueous solutions due to the high efficiency, simplicity, and lack of secondary contamination in the solution.…”
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1259
Optimization of the Adsorption/Desorption Contribution from Metal-Organic-Heat-Carrier Nanoparticles in Waste Heat Recovery Applications: R245fa/MIL101 in Organic Rankine Cycles
Published 2022-02-01“…In comparison with standard nanoparticles, these MOHCs make it possible to extract additional heat from the endothermic enthalpy of desorption, with a theoretically high potential for boosting the heat transfer capacity of ORC systems. …”
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1260
In Situ Polyaniline Immobilized ZnO Nanorods for Efficient Adsorptive Detoxification of Cr (VI) from Aquatic System
Published 2023-05-01“…The adsorption process proved viable and endothermic thermodynamically, and best supported by a Langmuir model, suggesting a monolayer formation of Cr (VI) on the surface of ZnO@PAni NRs.…”
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