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294743

Preparation of magnetically separable Fe3O4 @ SiO2@ FeOOH nanoparticles for effective removal of Cr (VI) from aqueous solution

Article

Last updated: 23 Dec 2024

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Abstract

In this study, Fe3O4@SiO2@FeOOH has been prepared and used as an adsorbent to eradicate Cr(VI) from aqueous media. Fe3O4@SiO2@FeOOH has been characterized by various characterization methods. Various factors on chromium adsorption such as the effect of pH, temperature, adsorbent In this study, Fe3O4@SiO2@FeOOH has been prepared and used as an adsorbent to eradicate Cr(VI) from aqueous media. Fe3O4@SiO2@FeOOH has been characterized by various characterization methods. Various factors on chromium adsorption such as the effect of pH, temperature, adsorbent dose, Cr(VI) concentration, and time were studied. The reaction mechanism was determined after applying kinetic models to the adsorption process. It was found that the adsorption amount of Cr(VI) on Fe3O4@SiO2@FeOOH is 42.95 mg/g. The time to reach equilibrium for adsorption is 150 min. Also, the adsorption of Cr(VI) is found to be fitted with pseudo-second order model. The equilibrium studies showed that Cr(VI) is adsorbed according to Langmuir model. As temperature rises, the amount adsorbed does as well. The regeneration and reuse of Fe3O4@SiO2@FeO have been studied for four cycles of Cr(VI) adsorption. 0.2 M NaOH solution is the best eluent of adsorbed Cr(VI) and Fe3O4@SiO2@FeOOH regeneration. It was found that Fe3O4@SiO2@FeOOH can be used efficiently for four cycles.

DOI

10.21608/ajnsa.2023.171336.1657

Keywords

Adsorption, Chromium, Goethite, Silica coated Fe3O4, aqueous solution

Authors

First Name

Ahmed

Last Name

Soliman

MiddleName

M

Affiliation

Nuclear Fuel Technology Department, Hot Laboratory Center.

Email

a.soliman.zidan@gmail.com

City

Cairo

Orcid

-

First Name

Ismail

Last Name

Ali

MiddleName

M

Affiliation

Hot Laboratories and Waste Management Centre, Egyptian Atomic Energy Authority (EAEA), P. No. 13759, Cairo, Egypt

Email

ismail_m_ali@yahoo.com

City

Cairo

Orcid

-

First Name

Magdy

Last Name

Khalil

MiddleName

-

Affiliation

Hot Laboratories and Waste Management Centre, Egyptian Atomic Energy Authority (EAEA), P. No. 13759, Cairo, Egypt

Email

magdykhalil7@yahoo.com

City

-

Orcid

-

Volume

56

Article Issue

4

Related Issue

42139

Issue Date

2023-07-01

Receive Date

2022-10-28

Publish Date

2023-07-01

Page Start

27

Page End

40

Print ISSN

1110-0451

Online ISSN

2090-4258

Link

https://ajnsa.journals.ekb.eg/article_294743.html

Detail API

https://ajnsa.journals.ekb.eg/service?article_code=294743

Order

294,743

Type

Original Article

Type Code

455

Publication Type

Journal

Publication Title

Arab Journal of Nuclear Sciences and Applications

Publication Link

https://ajnsa.journals.ekb.eg/

MainTitle

Preparation of magnetically separable Fe3O4 @ SiO2@ FeOOH nanoparticles for effective removal of Cr (VI) from aqueous solution

Details

Type

Article

Created At

23 Dec 2024