Showing 1,181 - 1,200 results of 2,155 for search '"endotherms"', query time: 0.11s Refine Results
  1. 1181

    Equilibrium, Thermodynamic, Reuse, and Selectivity Studies for the Bioadsorption of Lanthanum onto Sericin/Alginate/Poly(vinyl alcohol) Particles by Talles Barcelos da Costa, Meuris Gurgel Carlos da Silva, Melissa Gurgel Adeodato Vieira

    Published 2021-02-01
    “…Thermodynamic quantities showed that the process of lanthanum bioadsorption was spontaneous (−17.586, −19.244, and −20.902 kJ/mol), endothermic (+15.372 kJ/mol), and governed by entropic changes (+110.543 J/mol·K). …”
    Get full text
    Article
  2. 1182

    Hydrogels in the removal of industrial pollution: Adsorption characteristics for the removal of a toxic dye from aqueous solutions by Layth S. Jasim, Aseel M Aljeboree

    Published 2021-12-01
    “…Further, the values of ∆Ho indicated the endothermic nature of the method of removal.…”
    Get full text
    Article
  3. 1183

    Enzymatic Glycerolysis of Palm Kernel Olein-Stearin Blend for Monolaurin Synthesis as an Emulsifier and Antibacterial by Ngatirah Ngatirah, Chusnul Hidayat, Endang S. Rahayu, Tyas Utami

    Published 2022-08-01
    “…The thermal analysis showed a large endothermic peak with a melting point of 35.56 °C. The purified monolaurin has a HLB value of 5.92, and an emulsion capacity and stability of 93.66 ± 1.85% and 89.54 ± 3.36%, respectively. …”
    Get full text
    Article
  4. 1184

    Preparation of a Novel Millet Straw Biochar-Bentonite Composite and Its Adsorption Property of Hg<sup>2+</sup> in Aqueous Solution by Yanzhen Bai, Jianping Hong

    Published 2021-02-01
    “…Thermodynamic experiments confirmed that the adsorption process of Hg<sup>2+</sup> by the CB was spontaneous and endothermic. Fourier transform infrared spectroscopy (FTIR), X-ray photoelectron spectroscopy (XPS), and a thermogravimetric analysis (TGA) showed that after Hg<sup>2+</sup> was adsorbed by CB, functional groups, such as the –OH group (or C=O, COO–, C=C) on the CB, induced complexation between Hg and –O–, and part of Hg (ii) was reduced Hg (i), resulting in the formation of single or double tooth complexes of Hg–O– (or Hg–O–Hg). …”
    Get full text
    Article
  5. 1185

    An Investigation into the Stability Source of Collagen Fiber Modified Using Cr(III): An Adsorption Isotherm Study by Jiheng Li, Wenjun Long, Liangqiong Peng, Lijun Guo, Wenhua Zhang

    Published 2024-01-01
    “…Based on the higher <i>R</i><sup>2</sup> of the van’t Hoff equation, thermodynamic parameters (∆<i>G</i>°, ∆<i>H</i>°, ∆<i>S</i>°) from the Fritz–Shluender isotherm model revealed that the adsorption process typifies endothermic and spontaneous chemisorption, emphasizing entropy increase as the primary driver of Cr(III) bonding with collagen. …”
    Get full text
    Article
  6. 1186

    CHROMIUM (VI) ADSORPTION ONTO ACTIVATED KRAFT LIGNIN PRODUCED FROM ALFA GRASS (STIPA TENACISSIMA) by Nassima Tazrouti, Moussa Amrani

    Published 2009-05-01
    “…The thermodynamic parameters such as ΔG°, ΔS°, and ΔH° were calculated, and it was found that the reaction was spontaneous and endothermic in nature. This study indicates that lignin has the potential to become an effective and economical adsorbent for removal Cr (VI) from waste water.…”
    Get full text
    Article
  7. 1187

    Regeneration in Reptiles Generally and the New Zealand Tuatara in Particular as a Model to Analyse Organ Regrowth in Amniotes: A Review by Lorenzo Alibardi, Victor Benno Meyer-Rochow

    Published 2021-08-01
    “…The higher tissue regeneration of <i>Sphenodon</i> and other lepidosaurians provides useful information for attempts to improve organ regeneration in endothermic amniotes.…”
    Get full text
    Article
  8. 1188

    Numerical analysis of a solar assisted chemical looping combustion combined power and sea water desalination plant by Oghare Victor Ogidiama, Tariq Shamim

    Published 2023-05-01
    “…In the study, the effect of using solar energy for the provision of the required heating for the endothermic reaction process in CLC is thoroughly examined by varying the solar share. …”
    Get full text
    Article
  9. 1189

    Kinetics, Isotherm and Thermodynamic Studies for Efficient Adsorption of Congo Red Dye from Aqueous Solution onto Novel Cyanoguanidine-Modified Chitosan Adsorbent by Nouf F. Al-Harby, Ebtehal F. Albahly, Nadia A. Mohamed

    Published 2021-12-01
    “…Studying the thermodynamic showed that the adsorption was endothermic as illustrated from the positive value of enthalpy (34.49 kJ mol<sup>−1</sup>). …”
    Get full text
    Article
  10. 1190

    Biodegradable Composite of Gelatin Blend Microcrystalline Cellulose for Cd2+, Pb2+, and Cr3+ Adsorption from an Aqueous Solution by Marzia Sultana, Md. Raju Ahmmed, Md Inzamam Ul Hoque, Tanvir Ebna Mohsen, Atol Mondal, Md. Hafezur Rahaman, Moumita Yesmin, Md. Shahedur Rahman, S. M. Nur Alam

    Published 2023-01-01
    “…Moreover, the thermodynamic study showed that the adsorption was spontaneous, chemisorption, and endothermic. Our work offers a sustainable and biodegradable composite synthesized from modified jute fiber and gelatin for multimetal ions removal from an aqueous, which is an eco-friendly alternative to conventional nonbiodegradable adsorbents with potential environmental risks.…”
    Get full text
    Article
  11. 1191

    Experimental and computational studies of crystal violet removal from aqueous solution using sulfonated graphene oxide by Olayinka Oluwaseun Oluwasina, Adedeji Adebukola Adelodun, Olugbenga Oludayo Oluwasina, Helio A. Duarte, Sunday Joseph Olusegun

    Published 2024-03-01
    “…Thermodynamic studies established that the adsorption was spontaneous and endothermic. The adsorption mechanism was revealed by combining experimental and computational methods. …”
    Get full text
    Article
  12. 1192

    A Statistical Modeling and Optimization for Cr(VI) Adsorption from Aqueous Media via Teff Straw-Based Activated Carbon: Isotherm, Kinetics, and Thermodynamic Studies by Surafel Mustefa Beyan, Sundramurthy Venkatesa Prabhu, Temesgen Abeto Ambio, C. Gomadurai

    Published 2022-01-01
    “…The observed thermodynamic characteristics reveal that Cr(VI) adsorption on TASC is endothermic in nature. From the results, TSAC had shown a potential Cr(VI) efficiency on optimized process conditions that can be exploited effectively as adsorbent for removal of Cr(VI)-contaminated wastes.…”
    Get full text
    Article
  13. 1193

    Synthesis of polymer-metal oxide (PANI/ZnO/MnO2) ternary nanocomposite for effective removal of water pollutants by Parmeshwar Lal Meena, Jitendra Kumar Saini

    Published 2023-01-01
    “…The thermodynamic study confirmed the feasibility and spontaneity of the adsorption process, and the adsorption of CV over TNC is endothermic which increased disorderliness at the interface of the nanocomposite. …”
    Get full text
    Article
  14. 1194

    Preparation of Atorvastatin Calcium-Dipicolinic Acid Multicomponent Solids by Liquid-Assisted Grinding Method to Increase Solubility by Yudi Wicaksono, Shafira Faradiba Tsaniyah, Budipratiwi Wisudyaningsih, Kuni Zu''aimah Barikah, Lusia Oktora Ruma Kumala Sari

    Published 2022-11-01
    “…The DSC thermogram of multicomponent solids showed a sharp endothermic peak at 181.9 °C (∆H=17.69 J/g), indicating its melting point. …”
    Get full text
    Article
  15. 1195

    Development of erythropoietin receptor-targeted drug delivery system against breast cancer using tamoxifen-loaded nanostructured lipid carriers by Beh CY, How CW, Foo JB, Foong JN, Selvarajah GT, Rasedee A

    Published 2017-03-01
    “…Unlike binding of albumin to TAMNLC, the binding of EPO to TAMNLC occurred through endothermic and entropy-driven reaction. The EPO-TAMNLC formulation was stable because of the hydrophobic interaction and the high free energy, suggesting the spontaneity of the interactions between EPO and TAMNLC. …”
    Get full text
    Article
  16. 1196

    Preparation and photocatalysis of ZnO/bentonite based on adsorption and photocatalytic activity by Sena Megersa Jida, Enyew Amare Zerefa

    Published 2023-01-01
    “…The result revealed that the pseudo-second-order fit experimental data well and the process was chemisorption. The endothermic and spontaneous nature of the adsorption process of MB dye AB5 were carried by studying the thermodynamic parameters of the system. …”
    Get full text
    Article
  17. 1197

    Valorization and Evaluation of Terminalia Ivorensis Fibrous Waste for Its Environmental Sequestration Potential for Industrial Anionic Dyes in Aqua System by Abimbola M. Olatunde, Martins O. Omorogie, Michael T. Agbadaola, Oreoluwa O. Adesina, Elizabeth O. Adeleye, Jonathan O. Babalola

    Published 2022-12-01
    “…Enthalpy and entropy change (∆H° and ∆S°) were positive for CR, MB, and EY describing endothermic form and increased disorderliness between the adsorbent-dye interface.…”
    Get full text
    Article
  18. 1198

    Kinetics and Thermodynamics Study of Ultrasound-Assisted Depolymerization of k-Carrageenan in Acidic Solution by Ratnawati Ratnawati, Nita Indriyani

    Published 2020-04-01
    “…The enthalpy of activation (ΔH‡) and the Gibbs energy of activation (ΔG‡) are positive, while the entropy of activation (ΔS‡) is negative, indicating that the activation step of the ultrasound-assisted depolymerization of k-carrageenan is endothermic, non-spontaneous, and the molecules at the transition state is more ordered than at the ground state. …”
    Get full text
    Article
  19. 1199

    The Application of ATD and DSC Methods to Study of the EN AC-48000 Alloy Phase Transformations by Piątkowski J., Przeliorz R., Szymszal J.

    Published 2017-06-01
    “…During heating, DSC curve showed endothermic effect connected with melting of the eutectic α(Al)+β(Si) and phases: Al2Cu, Al3Ni, Mg2Si and Al9Fe2Si being its components. …”
    Get full text
    Article
  20. 1200

    Amino-Functionalized Silica@Resorcinol–Formaldehyde Nanocomposites for the Removal of Cr(VI) from Aqueous Solutions by Nan Li, Wenhui Lu, Deyi Zhu

    Published 2023-10-01
    “…The changes in Gibb’s free energy, enthalpy, and entropy revealed that Cr(VI) adsorption onto NH<sub>2</sub>-SiO<sub>2</sub>@RF was a spontaneous and endothermic process. Furthermore, high selectivity was demonstrated in the material for the removal of Cr(VI) from commonly coexisting ions. …”
    Get full text
    Article