Advanced porphyrin-integrated Cu-MOF/semiconductor hybrids for high-efficiency removal of micropollutant via photocatalytic and adsorptive pathways
Advanced porphyrin-integrated Cu-MOF/semiconductor hybrids for high-efficiency removal of micropollutant via photocatalytic and adsorptive pathways
The present study reports the synthesis of an advanced heterojunction comprising Tetrakis(4-carboxyphenyl) porphyrin (TCCP)-based copper metal-organic framework (Cu-TCCP-MOF) integrated with ZnFe₂O₄ (ZFO) nanoparticles, demonstrating significant adsorption and photocatalytic capabilities. Adsorption characteristics were systematically evaluated using Langmuir and Freundlich isotherms, with the Langmuir model exhibiting superior fitting accuracy (R2 = 0.999) relative to the Freundlich model (R2 = 0.967), suggesting monolayer adsorption. Photocatalytic assessments revealed substantial degradation efficiencies of 97.2 % for Rhodamine B (RhB) in 90 min and 92.3 % for para-nitrophenol (PNP) in 70 min, adhering to pseudo-first-order kinetics with a calculated rate constant of 0.08124 min−1. The pronounced photocatalytic efficacy is ascribed to the effective generation of reactive oxygen species (ROS), specifically hydroxyl radicals (⁎OH) and superoxide anions (⁎O2−). Additionally, the heterojunction exhibited excellent cyclic stability over six consecutive cycles, underscoring its applicability in wastewater remediation. This work underscores the potential of advanced MOF-based heterojunctions as promising candidates for simultaneous adsorption and photocatalytic degradation in environmental applications.
Porphyrin-based MOFs, Heterojunction photocatalysis, Reactive oxygen species (ROS), Environmental remediation
Ahmad, Naseem
34fc6937-1ee1-41b1-baad-62b13da86cbb
Khan, Abdul Rahman
8dc309da-ee36-464d-b677-b62cf601926c
Siddiqui, Masoom Raza
068598ef-a7a1-4e36-bdd2-c3413890057c
Khan, Mohammad Danish
94549b26-7db9-4ad9-a146-645a4192e1ab
Benamor, Abdelbaki
34e68c18-fe29-48ff-b286-fae9a0945f14
Anwer, Abdul Hakeem
4c2603fa-0f23-442d-a344-c80e104a8451
Ahmad, Nafees
b4f4943e-63ba-4f92-873a-587f30c4f7c1
5 August 2025
Ahmad, Naseem
34fc6937-1ee1-41b1-baad-62b13da86cbb
Khan, Abdul Rahman
8dc309da-ee36-464d-b677-b62cf601926c
Siddiqui, Masoom Raza
068598ef-a7a1-4e36-bdd2-c3413890057c
Khan, Mohammad Danish
94549b26-7db9-4ad9-a146-645a4192e1ab
Benamor, Abdelbaki
34e68c18-fe29-48ff-b286-fae9a0945f14
Anwer, Abdul Hakeem
4c2603fa-0f23-442d-a344-c80e104a8451
Ahmad, Nafees
b4f4943e-63ba-4f92-873a-587f30c4f7c1
Ahmad, Naseem, Khan, Abdul Rahman, Siddiqui, Masoom Raza, Khan, Mohammad Danish, Benamor, Abdelbaki, Anwer, Abdul Hakeem and Ahmad, Nafees
(2025)
Advanced porphyrin-integrated Cu-MOF/semiconductor hybrids for high-efficiency removal of micropollutant via photocatalytic and adsorptive pathways.
Journal of Water Process Engineering, 77, [108447].
(doi:10.1016/j.jwpe.2025.108447).
Abstract
The present study reports the synthesis of an advanced heterojunction comprising Tetrakis(4-carboxyphenyl) porphyrin (TCCP)-based copper metal-organic framework (Cu-TCCP-MOF) integrated with ZnFe₂O₄ (ZFO) nanoparticles, demonstrating significant adsorption and photocatalytic capabilities. Adsorption characteristics were systematically evaluated using Langmuir and Freundlich isotherms, with the Langmuir model exhibiting superior fitting accuracy (R2 = 0.999) relative to the Freundlich model (R2 = 0.967), suggesting monolayer adsorption. Photocatalytic assessments revealed substantial degradation efficiencies of 97.2 % for Rhodamine B (RhB) in 90 min and 92.3 % for para-nitrophenol (PNP) in 70 min, adhering to pseudo-first-order kinetics with a calculated rate constant of 0.08124 min−1. The pronounced photocatalytic efficacy is ascribed to the effective generation of reactive oxygen species (ROS), specifically hydroxyl radicals (⁎OH) and superoxide anions (⁎O2−). Additionally, the heterojunction exhibited excellent cyclic stability over six consecutive cycles, underscoring its applicability in wastewater remediation. This work underscores the potential of advanced MOF-based heterojunctions as promising candidates for simultaneous adsorption and photocatalytic degradation in environmental applications.
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Accepted/In Press date: 30 July 2025
e-pub ahead of print date: 5 August 2025
Published date: 5 August 2025
Keywords:
Porphyrin-based MOFs, Heterojunction photocatalysis, Reactive oxygen species (ROS), Environmental remediation
Identifiers
Local EPrints ID: 505089
URI: http://eprints.soton.ac.uk/id/eprint/505089
ISSN: 2214-7144
PURE UUID: 9d7d43c7-b8f9-435f-809b-dddae7875066
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Date deposited: 25 Sep 2025 17:11
Last modified: 26 Sep 2025 02:18
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Contributors
Author:
Naseem Ahmad
Author:
Abdul Rahman Khan
Author:
Masoom Raza Siddiqui
Author:
Mohammad Danish Khan
Author:
Abdelbaki Benamor
Author:
Abdul Hakeem Anwer
Author:
Nafees Ahmad
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