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Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS2 nanocomposite suspension: Identification of transformation products.
Chemosphere. 2020 Aug; 253:126689.C

Abstract

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.

Authors+Show Affiliations

Department of Chemical Engineering Technology, The Federal Polytechnic, Nasarawa, P.O. Box 01, 962101, Nigeria.Sustainable Process Engineering Research Centre, Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia. Electronic address: mie@upm.edu.my.Sustainable Process Engineering Research Centre, Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia.Sustainable Process Engineering Research Centre, Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia.Sustainable Process Engineering Research Centre, Department of Chemical and Environmental Engineering, Faculty of Engineering, Universiti Putra Malaysia, 43400, UPM Serdang, Selangor Darul Ehsan, Malaysia.Department of Physics, Faculty of Science, Universiti Putra Malaysia, 43400 UPM Serdang, Selangor, Darul Ehsan, Malaysia.

Pub Type(s)

Journal Article

Language

eng

PubMed ID

32304862

Citation

Makama, A B., et al. "Influence of Parameters and Radical Scavengers On the Visible-light-induced Degradation of Ciprofloxacin in ZnO/SnS2 Nanocomposite Suspension: Identification of Transformation Products." Chemosphere, vol. 253, 2020, p. 126689.
Makama AB, Salmiaton A, Choong TSY, et al. Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS2 nanocomposite suspension: Identification of transformation products. Chemosphere. 2020;253:126689.
Makama, A. B., Salmiaton, A., Choong, T. S. Y., Hamid, M. R. A., Abdullah, N., & Saion, E. (2020). Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS2 nanocomposite suspension: Identification of transformation products. Chemosphere, 253, 126689. https://doi.org/10.1016/j.chemosphere.2020.126689
Makama AB, et al. Influence of Parameters and Radical Scavengers On the Visible-light-induced Degradation of Ciprofloxacin in ZnO/SnS2 Nanocomposite Suspension: Identification of Transformation Products. Chemosphere. 2020;253:126689. PubMed PMID: 32304862.
* Article titles in AMA citation format should be in sentence-case
TY - JOUR T1 - Influence of parameters and radical scavengers on the visible-light-induced degradation of ciprofloxacin in ZnO/SnS2 nanocomposite suspension: Identification of transformation products. AU - Makama,A B, AU - Salmiaton,A, AU - Choong,T S Y, AU - Hamid,M R A, AU - Abdullah,N, AU - Saion,E, Y1 - 2020/04/10/ PY - 2019/10/09/received PY - 2020/03/16/revised PY - 2020/04/01/accepted PY - 2020/4/19/pubmed PY - 2020/6/26/medline PY - 2020/4/19/entrez KW - Ciprofloxacin KW - Photocatalysis KW - Transformation products KW - Visible-light KW - ZnO/SnS(2) SP - 126689 EP - 126689 JF - Chemosphere JO - Chemosphere VL - 253 N2 - 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. SN - 1879-1298 UR - https://www.unboundmedicine.com/medline/citation/32304862/Influence_of_parameters_and_radical_scavengers_on_the_visible-light-induced_degradation_of_ciprofloxacin_in_ZnO/SnS2_nanocomposite_suspension:_Identification_of_transformation_products L2 - https://linkinghub.elsevier.com/retrieve/pii/S0045-6535(20)30882-1 DB - PRIME DP - Unbound Medicine ER -