Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products

Removal of ciprofloxacin (CIP) pollutant from wastewater using conventional process is particularly challenging due to poor removal efficiency. In this work, CIP was photocatalytically degraded using a porous ZnO/SnS2 photocatalyst prepared via microwaves. The influence of process parameters (e.g.,...

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Main Authors: Makama, Abdullahi B., Ali, Salmiaton, Choong, Thomas Shean Yaw, Abdul Hamid, Mohamad Rezi, Abdullah, Norhafizah, Saion, Elias
Format: Article
Language:English
Published: Elsevier 2020
Online Access:http://psasir.upm.edu.my/id/eprint/89374/1/LIGHT.pdf
http://psasir.upm.edu.my/id/eprint/89374/
https://www.sciencedirect.com/science/article/pii/S0045653520308821
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Institution: Universiti Putra Malaysia
Language: English
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spelling my.upm.eprints.893742021-09-17T03:05:23Z http://psasir.upm.edu.my/id/eprint/89374/ Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products Makama, Abdullahi B. Ali, Salmiaton Choong, Thomas Shean Yaw Abdul Hamid, Mohamad Rezi Abdullah, Norhafizah Saion, Elias Removal of ciprofloxacin (CIP) pollutant from wastewater using conventional process is particularly challenging due to poor removal efficiency. In this work, CIP was photocatalytically degraded using a porous ZnO/SnS2 photocatalyst prepared via microwaves. The influence of process parameters (e.g., pH, catalyst mass and initial CIP concentration) and radical scavengers on visible-light induced degradation of CIP on the catalyst was investigated. From the study, it was found that visible-light induced degradation of CIP on ZnO/SnS2 is a surface-mediated process and the reaction kinetics followed the Langmuir-Hinshelwood first-order kinetics. It was found that the optimum condition for CIP degradation was at pH of 6.1 and catalyst dosage of 500 mg L−1. Higher catalyst dosage however led to a decline in reaction rate due to light scattering effect and reduction in light penetration. Elsevier 2020 Article PeerReviewed text en http://psasir.upm.edu.my/id/eprint/89374/1/LIGHT.pdf Makama, Abdullahi B. and Ali, Salmiaton and Choong, Thomas Shean Yaw and Abdul Hamid, Mohamad Rezi and Abdullah, Norhafizah and Saion, Elias (2020) Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products. Chemosphere, 253. art. no. 126689. pp. 1-9. ISSN 0045-6535 https://www.sciencedirect.com/science/article/pii/S0045653520308821 10.1016/j.chemosphere.2020.126689
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
language English
description Removal of ciprofloxacin (CIP) pollutant from wastewater using conventional process is particularly challenging due to poor removal efficiency. In this work, CIP was photocatalytically degraded using a porous ZnO/SnS2 photocatalyst prepared via microwaves. The influence of process parameters (e.g., pH, catalyst mass and initial CIP concentration) and radical scavengers on visible-light induced degradation of CIP on the catalyst was investigated. From the study, it was found that visible-light induced degradation of CIP on ZnO/SnS2 is a surface-mediated process and the reaction kinetics followed the Langmuir-Hinshelwood first-order kinetics. It was found that the optimum condition for CIP degradation was at pH of 6.1 and catalyst dosage of 500 mg L−1. Higher catalyst dosage however led to a decline in reaction rate due to light scattering effect and reduction in light penetration.
format Article
author Makama, Abdullahi B.
Ali, Salmiaton
Choong, Thomas Shean Yaw
Abdul Hamid, Mohamad Rezi
Abdullah, Norhafizah
Saion, Elias
spellingShingle Makama, Abdullahi B.
Ali, Salmiaton
Choong, Thomas Shean Yaw
Abdul Hamid, Mohamad Rezi
Abdullah, Norhafizah
Saion, Elias
Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products
author_facet Makama, Abdullahi B.
Ali, Salmiaton
Choong, Thomas Shean Yaw
Abdul Hamid, Mohamad Rezi
Abdullah, Norhafizah
Saion, Elias
author_sort Makama, Abdullahi B.
title Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products
title_short Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products
title_full Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products
title_fullStr Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products
title_full_unstemmed Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS 2 nanocomposite suspension: Identification of transformation products
title_sort influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in zno/sns 2 nanocomposite suspension: identification of transformation products
publisher Elsevier
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/89374/1/LIGHT.pdf
http://psasir.upm.edu.my/id/eprint/89374/
https://www.sciencedirect.com/science/article/pii/S0045653520308821
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