Showing 1,701 - 1,720 results of 2,155 for search '"endotherms"', query time: 0.10s Refine Results
  1. 1701

    Removal of methylene blue from aqueous solution by coconut coir dust as a low-cost adsorbent by Abdullah Al Ashik, Md. Ataur Rahman, Debadas Halder, Md. Mufazzal Hossain

    Published 2023-02-01
    “…At pH 7.68, the present system was spontaneous and endothermic in nature. It was found that when the temperature was increased from 303 to 333 K, the ΔG value decreased.…”
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  2. 1702

    Process Optimization and Modeling of Phenol Adsorption onto Sludge-Based Activated Carbon Intercalated MgAlFe Ternary Layered Double Hydroxide Composite by Nuhu Dalhat Mu’azu, Mukarram Zubair, Ihsanullah Ihsanullah

    Published 2021-07-01
    “…The phenol uptake mechanism was endothermic in nature and predominantly via a physisorption process (ΔG° = −5.33 to −5.77 kJ/mol) with the involvement of π–π interactions between the phenol molecules and the functionalities on the SBAC-LDH surface. …”
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  3. 1703

    Removal of Pb(II) from Aqueous Solutions Using Graphene-Immobilized Nickel Oxide Composites by Saied Kazempour, Farid Moeinpour

    Published 2023-04-01
    “…These findings show that lead absorption is an endothermic reaction. The graphene/NiO magnetic nanocomposite made in this way has many pores and a high specific area (196.5 m2/g), which makes it an ideal adsorbent for removing lead(II) ions from aqueous solution. …”
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  4. 1704

    Equilibrium and Kinetic Modeling of Crystal Violet Dye Adsorption by a Marine Diatom, <i>Skeletonema costatum</i> by Mohamed Ashour, Ahmed E. Alprol, Mohamed Khedawy, Khamael M. Abualnaja, Abdallah Tageldein Mansour

    Published 2022-09-01
    “…Moreover, thermodynamic parameters of the adsorption studies suggested that the uptake of CVD onto <i>S. costatum</i> was endothermic and spontaneous. The pseudo-first-order, pseudo-second-order, and intra-particle diffusion kinetic equations were applied to model the adsorption kinetic data. …”
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    Article
  5. 1705

    Facile Method by Bentonite Treated with Heat and Acid to Enhance Pesticide Adsorption by Chutima Pluangklang, Kunwadee Rangsriwatananon

    Published 2021-06-01
    “…Furthermore, the adsorption process on the adsorbents fits well with the Langmuir isotherm and pseudo-second-order kinetics models, as the thermodynamic parameters showed a spontaneous and endothermic process.…”
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  6. 1706

    Waste-to-value: Synthesis of nano-aluminum oxide (nano-γ-Al2O3) from waste aluminum foils for efficient adsorption of methylene blue dye by Farah I.M.S. Sangor, Mohammad A. Al-Ghouti

    Published 2023-12-01
    “…While accordingly to thermodynamic studies, the positive value for change in enthalpy (Δ H°) indicated that the adsorption process was endothermic. While the negative value of Gibbs free energy (Δ G°) indicated the reaction was feasible and spontaneous. …”
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    Article
  7. 1707

    Study of Industrial Grade Thermal Insulation at Elevated Temperatures by Amalie Gunnarshaug, Maria Monika Metallinou, Torgrim Log

    Published 2020-10-01
    “…The DSC analysis confirmed an endothermic peak at about 1200 °C, indicating melting, which explained the increase in density and thermal conductivity. …”
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    Article
  8. 1708

    Phenol contaminated municipal wastewater treatment using date palm frond biochar: Optimization using response surface methodology by Yohanna Haile Fseha, Jamal Shaheen, Banu Sizirici

    Published 2023-03-01
    “…Thermodynamics calculations affirmed that the adsorption of phenol onto DPF600 biochar was endothermic and spontaneous. The point of zero charge was found to be at 6.5 for DPF600 biochar. …”
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  9. 1709

    Solubility Determination, Hansen Solubility Parameters and Thermodynamic Evaluation of Thymoquinone in (Isopropanol + Water) Compositions by Mohammed Ghazwani, M. Yasmin Begum, Prawez Alam, Mohammed H. Alqarni, Hasan S. Yusufoglu, Faiyaz Shakeel

    Published 2021-05-01
    “…A thermodynamic study indicates an endothermic and entropy-driven dissolution of TQ in all (IPA + H<sub>2</sub>O) mixtures, including pure IPA and pure H<sub>2</sub>O.…”
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  10. 1710

    Adsorption and Enrichment of Alkalids from Areca Nut by Means of Macroporous Resins by Yan Ding, Xiao-Ming Yang, Guo-Bo Pan, Hai-Le Ma, Wei-Min Liu

    Published 2012-03-01
    “…The thermodynamic and kinetic parameters showed that D151 resin possessed the greatest adsorption capacity and the highest adsorption rate of the three resins, with the adsorption of areca alkalids being spontaneous and endothermic. To optimize the operating parameters for enriching areca alkalids, dynamic adsorption and desorption tests were undertaken employing a column packed with D151 resin. …”
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  11. 1711

    Biochar from Rice Husk as Efficient Biosorbent for Procion Red Removal from Aqueous Systems by Neza R. Palapa, Tarmizi Taher, Novie Juleanti, Normah Normah, Aldes Lesbani

    Published 2021-07-01
    “…Thermodynamic analysis showed positive enthalpy and entropy, indicating that Procion Red adsorption is endothermic; thus, the Gibbs energy values decreased with increase in temperature, indicating that high temperatures are favourable for the adsorption process. …”
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  12. 1712

    Differential AMPK-mediated metabolic regulation observed in hibernation-style polymorphisms in Siberian chipmunks by Taito Kamata, Taito Kamata, Shintaro Yamada, Shintaro Yamada, Tsuneo Sekijima

    Published 2023-08-01
    “…Hibernation is a unique physiological phenomenon allowing extreme hypothermia in endothermic mammals. Hypometabolism and hypothermia tolerance in hibernating animals have been investigated with particular interest; recently, studies of cultured cells and manipulation of the nervous system have made it possible to reproduce physiological states related to hypothermia induction. …”
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  13. 1713

    The application of magnetite biochar composite derived from parthenium hysterophorus for the adsorption of methylene blue from aqueous solution by Meseret Dawit Teweldebrihan, Mikiyas Abewaa Gnaro, Megersa Olumana Dinka

    Published 2024-04-01
    “…Additionally, the thermodynamics study depicts that the nature of the adsorption is spontaneous, endothermic and feasible. On the other hand, the chemosorption nature is revealed by the pseudo second kinetics model with a maximum R2 of 0.99. …”
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  14. 1714

    Removal of Methyl Orange Dye from Aqueous Solution Using Bioadsorbent Modified with Polyaniline Nanofibers; Isotherm, Kinetic and Thermodynamic Studies by Shahrzad Isvand Rajabi, Fatemeh Masdarolomoor

    Published 2022-12-01
    “…Thermodynamic studies showed that the adsorption of the dye is a favorable, spontaneous and endothermic process.…”
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  15. 1715

    A study of vitamin B influence on the morphology, roughness, and reflectance of electropolished aluminum in H3PO4–H2SO4 mixture by Fatma M. Abouzeid, Haya A. Abubshait

    Published 2020-01-01
    “…Activation parameter's values confirm that the dissolution is an endothermic procedure and a character of diffusion.The influence of increasing concentration (C) (1 × 10−4–10 × 10−4 mol·L−1) of VB completed and comprehend, to deduce the relationship between IL and C. …”
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  16. 1716

    Optimization Conditions of Malachite Green Adsorption onto Almond Shell Carbon Waste Using Process Design by Faiza Chouli, Abdelrahman Osama Ezzat, Lilia Sabantina, Abdelghani Benyoucef, Abdelhafid Zehhaf

    Published 2023-12-01
    “…The positive ∆H (12.19 J.mol<sup>−1</sup>) indicates that the adsorption process is endothermic. Almond shell was found to be a stable adsorbent. …”
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  17. 1717

    Influence of trace water on decomposition mechanism of c-C4F8 as environmental friendly insulating gas at high temperature by Song Xiao, Yi Li, Xiaoxing Zhang, Ran Zhuo, Dibo Wang, Ju Tang, Ji Zhang, Qi Chen

    Published 2018-12-01
    “…It is found that the decomposition of c-C4F8 requires an endothermic heat of about 420 kJ/mol, and the decomposition of c-C4F8 to C2F4 is more likely to occur at high temperature. …”
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  18. 1718
  19. 1719

    Design of a new clean and comfortable temperature-sensitive polyethylene-based copolymer textile by Zebin Wu

    Published 2023-08-01
    “…There is an obvious endothermic peak on the DSC curve near −26°C, which indicates that the glass transition temperature of P(MEO2MA-co-EGMA360) is −26°C, and P (MEO2MA-EGMA360). …”
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  20. 1720

    Selective recovery of copper from copper tailings and wastewater using chelating resins with bis-picolylamine functional groups by Kosisochi Ibebunjo, Youssef El Ouardi, John Kwame Bediako, Anna Iurchenkova, Eveliina Repo

    Published 2024-03-01
    “…The adsorption thermodynamics showed an endothermic and spontaneous adsorption. FTIR and XPS studies suggested coordination or chelation as the possible adsorption mechanism. …”
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