Beta
ManageSearchChatDiscover
39315

Influence of Temperature Regime on Nickel Kinetics in Two Alluvial Soils from Arid Region

Article

Last updated: 01 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Soil science

Abstract

The effect of soil temperature on Nickel (Ni2+) adsorption/desorption using a kinetics approach was studied in two Egyptian surface alluvial soil samples (0-30 cm) varying in their clay content and other related properties and collected from El-Menoufya Governorate, Egypt. The kinetics of Ni2+ adsorption, as well as desorption, were determined at three temperature regimes i.e. 5, 28, and 50°C for each soil using the batch technique. The calculated values of energies of activation for adsorption (Ka) ranged between 5.21 - 5.34 for Soil 1 (S1) and 5.32 - 6.23 kcal mol-1 for Soil 2 (S2), respectively. The respective values of Ed were 2.44 - 3.71 and 2.42 - 3.57 kcal mol-1. Results also showed that the Ed values were greater than the Ea values in both soils; implying further energy has been required to desorb Ni2+ than to release for both soils. Thermodynamic variables have been calculated by Gibbs' and Eyring's equations. The free energy of Ni2+ adsorption (∆G°) were negative values (ranging between - 0.234 and - 0.411 in S1 and from - 0.357 to - 0.436 in S2 cal mol-1), meaning decrease in ∆G values with increasing the temperature. For Ni2+ desorption (∆Gd),  The free energy of activation values was higher than those for Ni2+ adsorption (∆Ga), suggesting that it is necessary to release Ni2+ more free energy than to adsorb it. The good agreement of calculated AG° from Gibbs' theory reaction denoting that the thermodynamic constants could be determined using the kinetic parameters. The enthalpy (∆H) parameter numerical values were exothermic and showed a greater binding of Ni2+ ions in S2 than in S1 according to the distinction between external surfaces to interlayer surfaces charge ratio. The enthalpy of activation (∆H) values in both soils were - 2.127 and - 0.497 cal mol-1 in S1 and S2 respectively, proposing the heat energy needed to overcome the Ni2+ desorption in S2 as compared to S1.

DOI

10.21608/asejaiqjsae.2019.39315

Keywords

Alluvial soils, Thermodynamics, Kinetics, Nickel

Authors

First Name

Sahar M.

Last Name

Ismail

MiddleName

-

Affiliation

Soil physics and chemistry Department, Water Resources and Desert Soils Division, Desert Research Center, 1 El-Mataria St., Cairo, Egypt

Email

dr.sahar.mohamedi@gmail.com

City

-

Orcid

-

First Name

Sherine M.

Last Name

Shehata

MiddleName

-

Affiliation

Soil physics and chemistry Department, Water Resources and Desert Soils Division, Desert Research Center, 1 El-Mataria St., Cairo, Egypt

Email

-

City

-

Orcid

-

First Name

Alaa M.

Last Name

Zaghloul

MiddleName

-

Affiliation

Soils and Water Use Dept., Agricultural and Biological Research Division, National Research Center, 33 El-Behouth St., Dokki, Giza, Egypt. National Research Centre

Email

-

City

-

Orcid

-

Volume

40

Article Issue

APRIL- JUNE

Related Issue

5258

Issue Date

2019-04-01

Receive Date

2019-05-22

Publish Date

2019-06-30

Page Start

361

Page End

369

Print ISSN

1110-0176

Online ISSN

2536-9784

Article File

ASEJAIQJSAE_Volume 40_Issue APRIL- JUNE_Pages 361-369.pdf

PDF . 722.5kB

Link

https://asejaiqjsae.journals.ekb.eg/article_39315.html

Detail API

https://asejaiqjsae.journals.ekb.eg/service?article_code=39315

Order

14

Type

Original Article

Type Code

53

Publication Type

Journal

Publication Title

Alexandria Science Exchange Journal

Publication Link

https://asejaiqjsae.journals.ekb.eg/

MainTitle

Influence of Temperature Regime on Nickel Kinetics in Two Alluvial Soils from Arid Region

Details

Type

Article

Created At

22 Jan 2023