Beta
ManageSearchChatDiscover
326178

Bi Doping Starch-DMAEMA Hydrogel for Efficient Removal of Sr(II)

Article

Last updated: 01 Jan 2025

OverviewSimilar Items

Subjects

-

Tags

Physical chemistry

Abstract

One of the most significant environmental issues currently facing humanity is heavy metal contamination. The purpose of this study is the removal of Strontium ions Sr(II) by using gamma radiation to create starch/poly[2-(dimethylamino) ethyl methacrylate]/bismuth (St/DMAEMA/Bi) hydrogel nanocomposite. On the removal of Sr(II) ions, the effects of pH, contact time, adsorbent dose, and temperature were examined. The experimental data were fitted by Freundlich and Langmuir isotherm models. The results proved that the Langmuir isothermal model describes the absorption process well. To describe the adsorption kinetics of Sr(II) ions in compounds, the pseudo-second-order kinetic model is suitable. The thermodynamic results (ΔG°, ΔS°, and ΔH°) and isotherm investigations support the endothermic nature of the adsorption of Sr(II) ions on St/DMAEMA/Bi hydrogel nanocomposite. Positive ∆H° values demonstrated the endothermic nature of the adsorption, while positive ∆S° values verified the increased randomness during the process, and the negative values of ΔG° show that the obtained experimental data best fits.

DOI

10.21608/ejchem.2023.239269.8677

Keywords

Nanocomposite, gamma radiation, heavy metal ions, Adsorption, Pseudo-second order, Langmuir isotherm

Authors

First Name

Esraa

Last Name

Alshafei

MiddleName

Ahmed

Affiliation

Chemistry specialist in Nuclear fuel cycle dept, Nuclear and Radiological Safety Research center, Egyptian Atomic Energy Authority (EAEA).

Email

esraa.alshafei@yahoo.com

City

-

Orcid

-

First Name

Mohamed

Last Name

Abdel Geleel

MiddleName

-

Affiliation

professor of radiation chemistry, Nuclear fuel cycle department, Nuclear and radiation safety research center, Egyptian Atomic Energy Authority

Email

mageleel2000@gmail.com

City

-

Orcid

-

First Name

Ghada

Last Name

Mahmoud

MiddleName

Adel

Affiliation

Professor of Polymer Chemistry, Nuclear fuel cycle department, Nuclear and radiation safety research center, Egyptian Atomic Energy Authority (EAEA)National Center for Radiation Research and Technology, Atomic Energy Authority.

Email

ghadancrrt@yahoo.com

City

cairo

Orcid

0000-0001-8335-7766

First Name

Nagwa

Last Name

Badawy

MiddleName

Abd El-fattah

Affiliation

Professor of physical chemistry, chemistry department, science faculty (girls), Al Azhar university

Email

dr.naguaa@hotmail.com

City

cairo

Orcid

-

First Name

Samia

Last Name

Abo Farha

MiddleName

-

Affiliation

Professor of physical chemistry, chemistry department, science faculty (girls), Al Azhar university

Email

samiaabofarha.5919@azhar.edu.eg

City

-

Orcid

-

Volume

66

Article Issue

11

Related Issue

43443

Issue Date

2023-11-01

Receive Date

2023-09-27

Publish Date

2023-11-01

Page Start

189

Page End

197

Print ISSN

0449-2285

Online ISSN

2357-0245

Article File

EJCHEM_Volume 66_Issue 11_Pages 189-197.pdf

PDF . 760.6kB

Link

https://ejchem.journals.ekb.eg/article_326178.html

Detail API

https://ejchem.journals.ekb.eg/service?article_code=326178

Order

326,178

Type

Original Article

Type Code

297

Publication Type

Journal

Publication Title

Egyptian Journal of Chemistry

Publication Link

https://ejchem.journals.ekb.eg/

MainTitle

Bi Doping Starch-DMAEMA Hydrogel for Efficient Removal of Sr(II)

Details

Type

Article

Created At

30 Dec 2024