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.,...
| Main Authors: | , , , , , |
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| Format: | Article |
| Language: | English |
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Elsevier
2020
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| Online Access: | http://psasir.upm.edu.my/id/eprint/89374/1/LIGHT.pdf |
| _version_ | 1825936669917839360 |
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| author | Makama, Abdullahi B. Ali, Salmiaton Choong, Thomas Shean Yaw Abdul Hamid, Mohamad Rezi Abdullah, Norhafizah Saion, Elias |
| author_facet | Makama, Abdullahi B. Ali, Salmiaton Choong, Thomas Shean Yaw Abdul Hamid, Mohamad Rezi Abdullah, Norhafizah Saion, Elias |
| author_sort | Makama, Abdullahi B. |
| collection | UPM |
| 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. |
| first_indexed | 2024-03-06T10:47:49Z |
| format | Article |
| id | upm.eprints-89374 |
| institution | Universiti Putra Malaysia |
| language | English |
| last_indexed | 2024-03-06T10:47:49Z |
| publishDate | 2020 |
| publisher | Elsevier |
| record_format | dspace |
| spelling | 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 |
| 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 |
| 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_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_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_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 |
| url | http://psasir.upm.edu.my/id/eprint/89374/1/LIGHT.pdf |
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