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Bimetallic Bi/Cu0-catalyzed persulfate-based advanced oxidation processes towards clofibric acid degradation in wastewater
Abstract
Clofibric acid (CFA), an important blood-lipid regulatory drug is an emerging organic pollutant and widely reported in water resources. A novel bimetallic, bismuth/zero valent cupper (Bi/Cu0) catalyst was prepared which showed better physiological, structural, and catalytic properties than Cu0. The Bi/Cu0 effectively catalyzed persulfate (S2O82−) and caused 85% degradation of CFA. The Bi coupling improved reusability and stability of Cu0. The use of alcoholic and anionic radical scavengers and analyzing change in [S2O82−]0 proved that Bi/Cu0/S2O82− yield hydroxyl radicals (●OH) and sulfate radicals (SO4●–). The ●OH and SO4●– showed faster reaction with CFA, i.e., 4.65 109 and 3.82 109 M−1 s−1 and degraded CFA into four degradation products. Under optimal conditions of [Bi/Cu0]0 = 1.0 g/L and [S2O82−]0 = 40 mg/L, 99.5% degradation of the 10 mg/L of CFA was achieved at 65 min. Temperature showed promising effects on the removal of CFA by Bi/Cu0/S2O82− and caused 98% removal at 323 K than 75% at 298 K at 32 min. The temperature effects were used to calculate activation energy, enthalpy, and rate constant of CFA degradation. The Bi/Cu0/S2O82− showed effective removal of CFA in real water samples also. The ecotoxicity study confirmed non-toxic product formation which suggests high capability of the proposed technology in the treatment of CFA.
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Authors (9)
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Jibran Iqbal
- Zayed University, United Arab Emirates
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Noor S. Shah
- COMSATS University Islamabad, Pakistan
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Javed Ali
- Abdul Wali Khan University Mardan, Pakistan
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Mohamed A. Habila
- King Saud University, Saudi Arabia
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Asam Shad
- COMSATS University Islamabad, Pakistan
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Yousef Nazzal
- Zayed University, United Arab Emirates
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Ahmed A. Al-Taani
- Yarmouk University, Jordan
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Fares Howari
- Fort Valley State University, USA
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Full text
- Publication version
- Accepted or Published Version
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.wri.2023.100226
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Keywords
Details
- Category:
- Articles
- Type:
- artykuły w czasopismach
- Published in:
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Water Resources and Industry
no. 30,
ISSN: 2212-3717 - Language:
- English
- Publication year:
- 2023
- Bibliographic description:
- Iqbal J., Shah N. S., Ali J., Habila M. A., Boczkaj G., Shad A., Nazzal Y., Al-Taani A. A., Howari F.: Bimetallic Bi/Cu0-catalyzed persulfate-based advanced oxidation processes towards clofibric acid degradation in wastewater// Water Resources and Industry -Vol. 30, (2023), s.100226-
- DOI:
- Digital Object Identifier (open in new tab) 10.1016/j.wri.2023.100226
- Sources of funding:
-
- COST_FREE
- Verified by:
- Gdańsk University of Technology
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