Showing 1,021 - 1,040 results of 2,155 for search '"endotherms"', query time: 0.08s Refine Results
  1. 1021

    Rapid adsorptive removal of chromium from wastewater using walnut-derived biosorbents by Rajni Garg, Rishav Garg, Mika Sillanpää, Alimuddin, Mohammad Amir Khan, Nabisab Mujawar Mubarak, Yie Hua Tan

    Published 2023-04-01
    “…Treatment with sodium hydroxide and citric acid improved the adsorption efficiency of the biosorbent by 4.5 and 8.2%, respectively. The endothermic and spontaneous adsorption was observed to trail the pseudo-second-order kinetics under optimized process parameters. …”
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    Article
  2. 1022

    Preparation of a Novel Activated Carbon from Cassava Sludge for the High-Efficiency Adsorption of Hexavalent Chromium in Potable Water: Adsorption Performance and Mechanism Insight by Ling Li, Yan Li, Yiqi Liu, Lei Ding, Xiaopeng Jin, Hongwei Lian, Jun Zheng

    Published 2021-12-01
    “…The adsorption occurred spontaneously with endothermic nature. The removal mechanism of Cr (VI) on the prepared sludge activated carbon depended highly on solution pH, involving pore filling, electrostatic attraction, reduction, and ion exchange. …”
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    Article
  3. 1023

    Instrumental characteristics and acid blue 193 dye sorption properties of novel lupine seed powder by A. Hashem, Chukwunonso O. Aniagor, E.S. Abdel-Halim, A. Amr, S. Farag, A.A. Aly

    Published 2022-06-01
    “…The thermodynamic investigation suggests a prevailing endothermic process, thus adsorption is enhanced at an increased degree of freedom between the adsorbent and adsorbate solution interface.…”
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    Article
  4. 1024

    Engineered Superabsorbent Nanocomposite Reinforced with Cellulose Nanocrystals for Remediation of Basic Dyes: Isotherm, Kinetic, and Thermodynamic Studies by Arej S. Al-Gorair, Asmaa Sayed, Ghada A. Mahmoud

    Published 2022-01-01
    “…The negative values of ∆G confirmed the spontaneous nature of adsorption, and the positive value of ∆H indicated the endothermic nature of the adsorption.…”
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    Article
  5. 1025

    Thermal Transitions and Structural Characteristics of Poly(3,4-ethylenedioxythiophene/cucurbit[7]uril) Polypseudorotaxane and Polyrotaxane Thin Films by Barbara Hajduk, Paweł Jarka, Henryk Bednarski, Henryk Janeczek, Pallavi Kumari, Aurica Farcas

    Published 2024-03-01
    “…VTSE and DSC results indicated the presence of an endothermic process and glass transition in the PEDOT∙CB7-PS and PEDOT∙CB7-PR thin films. …”
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    Article
  6. 1026

    High Selectivity and Reusability of Biomass-Based Adsorbent for Chloramphenicol Removal by Weinan Xing, Qi Liu, Jingyi Wang, Siye Xia, Li Ma, Ran Lu, Yujing Zhang, Yudong Huang, Guangyu Wu

    Published 2021-11-01
    “…CAPC adsorption was endothermic, spontaneous, and entropy-increasing nature on CFS. …”
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    Article
  7. 1027

    Application of response surface methodology for optimization of cadmium removal by Aloe Vera/carboxylated carbon nanotubes nanocomposite-based low-cost adsorbent by Zahra Mahmoodi, Hossein Aghaie, Reza Fazaeli

    Published 2020-01-01
    “…The reported thermodynamic parameters designated that the adsorption of Cd(II) on the OAMP/CNTs-COOH was an endothermic and spontaneous process. The results revealed that OAMP/CNTs-COOH demonstrate enhanced adsorption performance in comparison with non-treated Aloe Vera.…”
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    Article
  8. 1028

    Thermally Activated Al(OH)<sub>3</sub> Part II—Effect of Different Thermal Treatments by Bogdan Stefan Vasile, Gheorghe Dobra, Sorin Iliev, Lucian Cotet, Ionela Andreea Neacsu, Vasile Adrian Surdu, Adrian Ionut Nicoara, Alina Boiangiu, Laurențiu Filipescu

    Published 2021-10-01
    “…We observed a strong relationship between the calcination temperature, the initial gibbsite grade particle size, and the crystallinity of the resulting powders. Hence, for all endothermic effects identified by DSC, the associated temperature values significantly decreased insofar as the particle dimensions decreased. …”
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    Article
  9. 1029

    Effect of Amidated Low-Methoxyl Pectin on Physicochemical Characteristics of Jumbo Squid (Dosidicus gigas) Mantle Muscle Gels by Juan C. Ramirez-Suarez, Andrés Álvarez-Armenta, Guillermina García-Sánchez, Ramón Pacheco-Aguilar, Susana M. Scheuren-Acevedo, Miguel A. Mazorra-Manzano, Agustín Rascón-Chu

    Published 2017-01-01
    “…Differential scanning calorimetry showed two endothermic transition peaks in the gels. The second peak (actin) increased (p<0.05) by 1–2 °C with fibre addition. …”
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    Article
  10. 1030

    Formation of oxygen vacancy at surfaces of ZnO by trimethylaluminum by Hyobin Eom, Woojin Bae, Ju Young Sung, Ji Hyeon Choi, Kyun Seong Dae, Jae Hyuck Jang, Tae Joo Park, Sang Woon Lee, Bonggeun Shong

    Published 2024-03-01
    “…Experimentally, the carrier density of the 2DEG at the Al2O3/ZnO interface showed a strong dependence on the ALD process temperature of Al2O3, confirming the endothermic nature of the formation of the 2DEG. By examining the characteristics of the 2DEG induced by VO, insights into the fundamental comprehension of oxide-based 2DEG systems are provided.…”
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    Article
  11. 1031

    Methyl Orange Adsorption on Biochar Obtained from <i>Prosopis juliflora</i> Waste: Thermodynamic and Kinetic Study by Carlos Diaz-Uribe, Jarith Ortiz, Freider Duran, William Vallejo, Jayson Fals

    Published 2023-12-01
    “…Furthermore, the results made known that the MO removal by PJW biochar was endothermic (ΔH = 12.7 kJ/mol) and a spontaneous process (ΔG = −0.954 kJ/mol). …”
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    Article
  12. 1032

    Silk Powder from Cocoons and Woven Fabric as a Potential Bio-Modifier by Anna Baranowska-Korczyc, Andrzej Hudecki, Irena Kamińska, Małgorzata Cieślak

    Published 2021-11-01
    “…The powders were also analyzed by differential scanning calorimetry and thermogravimetric techniques. The thermal endothermic peak and onset temperature characteristic for silk decomposition shifted to the lower values for all powders, indicating less thermal stability. …”
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    Article
  13. 1033

    Kinetic, Isotherm and Thermodynamic Aspects of Zn<sup>2+</sup> Biosorption by <i>Spirulina platensis</i>: Optimization of Process Variables by Response Surface Methodology by Nada K. Alharbi, Mayasar I. Al-Zaban, Fawziah M. Albarakaty, Sayed F. Abdelwahab, Sedky H. A. Hassan, Mustafa A. Fawzy

    Published 2022-04-01
    “…Furthermore, the thermodynamic analysis revealed that Zn<sup>2+</sup> biosorption was endothermic, spontaneous and feasible. As a result of biosorption process, FTIR, SEM, and EDX investigations indicated noticeable alterations in the algal biomass’s properties. …”
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    Article
  14. 1034

    Synthesis and application of zirconium phosphate mesoporous coordination polymer for effective removal of Co(II) from aqueous solutions by Yang Zeng, Guoyuan Yuan, Tu Lan, Feize Li, Jijun Yang, Jiali Liao, Yuanyou Yang, Ning Liu

    Published 2022-11-01
    “…The sorption of Co(II) by Zr-EDTMPA was a pH-dependent, spontaneous and endothermic process, which was better fitted to the pseudo-second-order kinetic model and Langmuir isotherm model. …”
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    Article
  15. 1035

    Simultaneous Adsorption of Cu<sup>2+</sup> and Cd<sup>2+</sup> by a Simple Synthesis of Environmentally Friendly Bamboo Pulp Aerogels: Adsorption Properties and Mechanisms by Wenxiang Jing, Lijiang Yin, Xiaoyan Lin, Ying Yu, Dongming Lian, Zhaoming Shi, Peng Chen, Min Tang, Chai Yang

    Published 2022-11-01
    “…The adsorption processes of Me<sup>2+</sup> by TCPA follow the pseudo-second-order model and Langmuir isotherm mode, and the adsorption processes are spontaneous and endothermic. The study provides a promising candidate for the treatment of wastewater containing heavy metal mixtures.…”
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    Article
  16. 1036

    Biosorption of Triphenyl Methane Dyes (Malachite Green and Crystal Violet) from Aqueous Media by Alfa (<i>Stipa tenacissima</i> L.) Leaf Powder by Lamia Ouettar, El-Khamssa Guechi, Oualid Hamdaoui, Nadia Fertikh, Fethi Saoudi, Abudulaziz Alghyamah

    Published 2023-04-01
    “…The thermodynamic results suggest that both dyes’ biosorption is a typical physical process, spontaneous and endothermic in nature.…”
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    Article
  17. 1037

    Design and Optimization of Lornoxicam Dispersible Tablets Using Quality by Design (QbD) Approach by Nawaf Almotairi, Gamal M. Mahrous, Saleh Al-suwayeh, Mohsin Kazi

    Published 2022-11-01
    “…DSC thermogram suggested that LX endothermic peak was slightly decreased due to the dilution effect. …”
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    Article
  18. 1038

    Molecular Survey of <i>Toxoplasma gondii</i> in Wild Mammals of Southern Italy by Hiba Dakroub, Giovanni Sgroi, Nicola D’Alessio, Danilo Russo, Francesco Serra, Vincenzo Veneziano, Simona Rea, Alessia Pucciarelli, Maria Gabriella Lucibelli, Esterina De Carlo, Giovanna Fusco, Maria Grazia Amoroso

    Published 2023-03-01
    “…<i>Toxoplasma gondii</i> is an opportunistic zoonotic protozoan that can infect all endothermic vertebrates, causing severe disease in immunocompromised humans and cases of congenital transmission. …”
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    Article
  19. 1039

    Removal of cationic dyes from water by using nano adsorbents Sulfonated carboxy methyl cellulose: (characterization, isotherm, kinetics and thermodynamics) by randa ghonim, moustapha mansour, ebrahiem esmail, ibrahim ashour, mohammed elgandy, hadier Abdelmenim

    Published 2023-09-01
    “…The adsorption process is spontaneous and endothermic, according to thermodynamic studies conducted at temperatures ranging from 298 to 313 K. …”
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    Article
  20. 1040

    Crystal Violet Adsorption on Eco-Friendly Lignocellulosic Material Obtained from Motherwort (<i>Leonurus cardiaca</i> L.) Biomass by Giannin Mosoarca, Cosmin Vancea, Simona Popa, Mircea Dan, Sorina Boran

    Published 2022-09-01
    “…The kinetic data indicate that equilibrium is reached at 50 min and that general order is the best kinetic model to describe the dye retention. The process is endothermic, spontaneous, favorable and supposed to be a physical adsorption. …”
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    Article