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26975

Kinetics and Adsorption Isotherm Studies of Methylene Blue Photodegradation Under UV Irradiation Using reduced Graphene Oxide- TiO2 Nanocomposite in Different Wastewaters Effluen

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Last updated: 23 Dec 2024

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Abstract

In this study TiO2@rGO nanoparticles was synthesized as an effective photocatalyst. Reduced graphene oxide (rGO) was mixed with TiO2 with different doping ratio (1%, 3% and 5% wt) and utilized to remove MB dye as organic pollutants from different wastewater effluents and also from aqueous solution. The impacts of different factors, e.g. pH of solution, contact time, photocatalyst dose and initial MB dye concentration on the removal efficiency were studied. The results showed that the highest MB degradation occurred at pH 9, contact time = 120 min, dose of photocatalyst of 0.75 g/L at 30 mg/l dye concentration. Also, the prepared nanocomposites success in reducing COD values of wastewater in the range of 30 – 89.1 %. Moreover, the data of kinetics studies indicated that the adsorption process well obeys the pseudo-second order reaction model with qe values ranged between 14.28 – 19.37 mg/L. Langmuir isotherm model well describes the behavior of adsorption behavior than Freundlich Model.

DOI

10.21608/ejabf.2019.26975

Keywords

Photodegradation, COD, Nanoparticles, Reduced Graphene oxide, MB dye, Wastewaters

Authors

First Name

Mohamed

Last Name

H. H. Ali

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Orcid

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First Name

Mohamed

Last Name

E. Goher

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Affiliation

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Orcid

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First Name

Afify

Last Name

D. G. Al-Afify

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Volume

23

Article Issue

1

Related Issue

4675

Issue Date

2019-01-01

Receive Date

2019-01-24

Publish Date

2019-02-12

Page Start

253

Page End

263

Print ISSN

1110-6131

Online ISSN

2536-9814

Article File

EJABF_Volume 23_Issue 1_Pages 253-263.pdf

PDF . 507.2kB

Link

https://ejabf.journals.ekb.eg/article_26975.html

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https://ejabf.journals.ekb.eg/service?article_code=26975

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Original Article

Type Code

103

Publication Type

Journal

Publication Title

Egyptian Journal of Aquatic Biology and Fisheries

Publication Link

https://ejabf.journals.ekb.eg/

MainTitle

Kinetics and Adsorption Isotherm Studies of Methylene Blue Photodegradation Under UV Irradiation Using reduced Graphene Oxide- TiO2 Nanocomposite in Different Wastewaters Effluents.

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Article

Created At

22 Jan 2023